18383-3241 SKF 2068 AC

Coord 2000	18383-3241		Discov num	SKF2068		Comp	AC		Coord arcsec 2000	18 38 19.80 -32 41 07.8
Date first	1910		Date last	2016		Obs	12
Pa first	220		Pa last	218.4		P.A. Now (θ)	218.4°
Sep first	124.6		Sep last	122.48		Sep. Now (ρ)	122.48"
Mag pri	7.34		Mag sec	10.84		delta mag (ΔM)	3.5		Spectral class	F2V (yellow-white)
Pri motion ra	+004		Sec motion ra	+005
Pri motion dec	-128		Sec motion dec	-131
Notes	T (Parallax indicates physical)

rPM=0.024 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 171840	210384	18 38 20 -32 41 08	FIN 3 AB	2016	6	261	4.6	7.34	12.40	5.06
Show		210384	18 38 20 -32 41 08	SKF 2068 AC	2016	12	218	122.5	7.34	10.84	3.50		<===

Triple system
3 estimated visually detectable stars in this system

Constellation	Sagittarius		SAO	210384		HIP	91386		Tycho2	7411-06095-1
Gaia DR2	6736604427984866176		HD	171840		CD	CD-3214337		CP	CP-32 5465
Distance	67.89		Distance ly	221.46

No records found.

refcode	metd	author	reference
Fin1926	orb -	Finsen, W.S.	1926CiUO...68..343F
Fin1926		Union Obs. Johannesburg Circ. 68, 343, 1926
Fin1927A	Ma -	Finsen, W.S.	1927sdsc.book......
Fin1927A		cited in SDS (Southern Double Star Catalog), 1927
Fin1928a	Ma -	Finsen, W.S.	1928CiUO...78...35F
Fin1928a		Union Obs. Johannesburg Circ. 78, 35, 1928
Fin1928b	Ma -	Finsen, W.S.	1928MNRAS..88..488F
Fin1928b		MNRAS 88, 488, 1928
Fin1929a	Ma j	Finsen, W.S.	1929CiUO...80...85F
Fin1929a		Union Obs. Johannesburg Circ. 80, 85, 1929
Fin1929b	Ma -	Finsen, W.S.	1929CiUO...80...99F
Fin1929b		Union Obs. Johannesburg Circ. 80, 99, 1929
Fin1929c	orb -	Finsen, W.S.	1929CiUO...81..112F
Fin1929c		Union Obs. Johannesburg Circ. 81, 112, 1929
Fin1931	Ma -	Finsen, W.S.	1931MNRAS..92...19F
Fin1931		MNRAS 92, 19, 1931
Fin1932a	Ma j	Finsen, W.S.	1932CiUO...86..237F
Fin1932a		Union Obs. Johannesburg Circ. 86, 237, 1932
Fin1932b	orb -	Finsen, W.S.	1932CiUO...86..259F
Fin1932b		Union Obs. Johannesburg Circ. 86, 259, 1932
Fin1932c	orb -	Finsen, W.S.	1932CiUO...88..319F
Fin1932c		Union Obs. Johannesburg Circ. 88, 319, 1932
Fin1933	J -	Finsen, W.S.	1933CiUO...90..379F
Fin1933		Union Obs. Johannesburg Circ. 90, 379, 1933
Fin1934a	-	Finsen, W.S.	1934CiUO...91...23F
Fin1934a		Union Obs. Johannesburg Circ. 91, 23-30, 1934
Fin1934b	Ma j	Finsen, W.S.	1934CiUO...92...31F
Fin1934b		Union Obs. Johannesburg Circ. 92, 31, 1934
Fin1935	J -	Finsen, W.S.	1935CiUO...93..134F
Fin1935		Union Obs. Johannesburg Circ. 93, 134, 1935
Fin1935		(U and T coded observations per van den Bos, J. Obs. 34, 85, 1951)	1951JO.....34...85V
Fin1935b	orb -	Finsen, W.S.	1935CiUO...94..147F
Fin1935b		Union Obs. Johannesburg Circ. 94, 147, 1935
Fin1935c	orb -	Finsen, W.S.	1935CiUO...94..149F
Fin1935c		Union Obs. Johannesburg Circ. 94, 149, 1935
Fin1936a	Ma -	Finsen, W.S.	1936AN....261..119F
Fin1936a		AN 261, 119, 1936
Fin1936b	Ma -	Finsen, W.S.	1936CiUO...96..263F
Fin1936b		Union Obs. Johannesburg Circ. 96, 263, 1936
Fin1936c	orb -	Finsen, W.S.	1936CiUO...95..225F
Fin1936c		Union Obs. Johannesburg Circ. 95, 225, 1936
Fin1937a	orb -	Finsen, W.S.	1937CiUO...98..344F
Fin1937a		Union Obs. Johannesburg Circ. 98, 344-361, 1937
Fin1937b	-	Finsen, W.S.	1937CiUO...98..359F
Fin1937b		Union Obs. Johannesburg Circ. 98, 359, 1937
Fin1938a	orb -	Finsen, W.S.	1938CiUO...99..445F
Fin1938a		Union Obs. Johannesburg Circ. 99, 445-463, 1938
Fin1938b	-	Finsen, W.S.	1938CiUO..100..466F
Fin1938b		Union Obs. Johannesburg Circ. 100, 466-479, 1938
Fin1941	Ma j	Finsen, W.S.	1941CiUO..104...74F
Fin1941		Union Obs. Johannesburg Circ. 104, 74, 1941
Fin1951a	Ma j	Finsen, W.S.	1951CiUO..112..104F
Fin1951a	+Mc	Union Obs. Johannesburg Circ. 112, 104, 1951
Fin1951b	Ma -	Finsen, W.S.	1951CiUO..112...94F
Fin1951b	+J	Union Obs. Johannesburg Circ. 112, 94, 1951
Fin1951c	J -	Finsen, W.S.	1951MNSSA..10...42F
Fin1951c		MNASSA 10, 42, 1951 (data also in Fin1951b)	1951CiUO..112...94F
Fin1951d	J -	Finsen, W.S.	1951MNSSA..10...60F
Fin1951d		MNASSA 10, 60, 1951 (data also in Fin1951b)	1951CiUO..112...94F
Fin1951e	J -	Finsen, W.S.	1951MNSSA..10..106F
Fin1951e		MNASSA 10, 106, 1951 (data also in Fin1953d	1953CiUO..113..170F
Fin1951e		or Fin1956a)	1956CiUO..115..259F
Fin1952	J -	Finsen, W.S.	1952MNSSA..11...30F
Fin1952		MNASSA 11, 30, 1952
Fin1953a	orb -	Finsen, W.S.	1953MNSSA..12...18F
Fin1953a	+J	MNASSA 12, 18, 1953 (data also in Fin1953d)	1953CiUO..113..170F
Fin1953b	-	Finsen, W.S.	1953MNSSA..12...34F
Fin1953b		MNASSA 12, 34, 1953
Fin1953c	J -	Finsen, W.S.	1953MNSSA..12...86F
Fin1953c		MNASSA 12, 86, 1953
Fin1953d	J -	Finsen, W.S.	1953CiUO..113..170F
Fin1953d		Union Obs. Johannesburg Circ. 113, 170, 1953
Fin1954a	orb -	Finsen, W.S.	1954CiUO..114..231F
Fin1954a		Union Obs. Johannesburg Circ. 114, 231, 1954
Fin1954b	orb -	Finsen, W.S.	1954CiUO..114..232F
Fin1954b		Union Obs. Johannesburg Circ. 114, 232, 1954
Fin1954c	Ma -	Finsen, W.S.	1954CiUO..114..240F
Fin1954c	+J	Union Obs. Johannesburg Circ. 114, 240, 1954
Fin1955a	J -	Finsen, W.S.	1955MNSSA..14...23F
Fin1955a		MNASSA 14, 23, 1955
Fin1955b	orb -	Finsen, W.S.	1955MNSSA..14...84F
Fin1955b		MNASSA 14, 84, 1955
Fin1956a	Ma -	Finsen, W.S.	1956CiUO..115..259F
Fin1956a	+J	Union Obs. Johannesburg Circ. 115, 259, 1956
Fin1956b	orb -	Finsen, W.S.	1956MNSSA..15...49F
Fin1956b		MNASSA 15, 49, 1956
Fin1957	J -	Finsen, W.S.	1957MNSSA..16..113F
Fin1957		MNASSA 16, 113, 1957
Fin1958	J -	Finsen, W.S.	1958CiUO..117..302F
Fin1958		Union Obs. Johannesburg Circ. 117, 302, 1958
Fin1959a	Ma -	Finsen, W.S.	1959CiUO..118..315F
Fin1959a	+J	Union Obs. Johannesburg Circ. 118, 315, 1959
Fin1959b	J -	Finsen, W.S.	1959MNSSA..18...31F
Fin1959b		MNASSA 18, 31, 1959
Fin1959c	orb -	Finsen, W.S.	1959JO.....42...81F
Fin1959c		J. Obs. 42, 81, 1959
Fin1960a	J -	Finsen, W.S.	1960MNSSA..19...28F
Fin1960a		MNASSA 19, 28, 1960
Fin1960b	Ma -	Finsen, W.S.	1960CiUO..119..333F
Fin1960b	+J	Union Obs. Johannesburg Circ. 119, 333, 1960
Fin1960c	J -	Finsen, W.S.	1960MNSSA..19..178F
Fin1960c		MNASSA 19, 178, 1960
Fin1961	Ma -	Finsen, W.S.	1961CiUO..120..367F
Fin1961	+J	Union Obs. Johannesburg Circ. 120, 367, 1961
Fin1962a	J -	Finsen, W.S.	1962ROCi..121...10F
Fin1962a		Republic Obs. Circ. 121, 10, 1962
Fin1962b	orb -	Finsen, W.S.	1962ROCi..121...13F
Fin1962b		Republic Obs. Circ. 121, 13-14, 1962
Fin1962c	orb -	Finsen, W.S.	1962ROCi..121...15F
Fin1962c		Republic Obs. Circ. 121, 15, 1962
Fin1963a	J -	Finsen, W.S.	1963ROCi..122...32F
Fin1963a		Republic Obs. Circ. 122, 32, 1963
Fin1963b	orb -	Finsen, W.S.	1963ROCi..122...38F
Fin1963b		Republic Obs. Circ. 122, 38-40, 1963
Fin1963c	orb -	Finsen, W.S.	1963ROCi..122...41F
Fin1963c		Republic Obs. Circ. 122, 41, 1963
Fin1964a	J j	Finsen, W.S.	1964ROCi..123...53F
Fin1964a		Republic Obs. Circ. 123, 53, 1964
Fin1964b	orb -	Finsen, W.S.	1964ROCi..123...59F
Fin1964b		Republic Obs. Circ. 123, 59-62, 1964
Fin1964c	orb -	Finsen, W.S.	1964JO.....47...98F
Fin1964c		J. Obs. 47, 98, 1964
Fin1964d	orb -	Finsen, W.S.	1964ROCi..123...63F
Fin1964d		Republic Obs. Circ. 123, 63-64, 1964
Fin1965a	J j	Finsen, W.S.	1965ROCi..124...79F
Fin1965a		Republic Obs. Circ. 124, 79, 1965
Fin1965b	orb -	Finsen, W.S.	1965ROCi..124...85F
Fin1965b		Republic Obs. Circ. 124, 85, 1965
Fin1966a	J j	Finsen, W.S.	1966ROCi..125..108F
Fin1966a		Republic Obs. Circ. 125, 108, 1966
Fin1966b	orb -	Finsen, W.S.	1966IAUDS..40....1F
Fin1966b		Inf. Circ. 40, 1, 1966
Fin1966c	orb -	Finsen, W.S.	1966ROCi..125..115F
Fin1966c		Republic Obs. Circ. 125, 115, 1966
Fin1966d	orb -	Finsen, W.S.	1966ROCi..125..116F
Fin1966d		Republic Obs. Circ. 125, 116, 1966
Fin1966e	orb -	Finsen, W.S.	1966ROCi..125..121F
Fin1966e		Republic Obs. Circ. 125, 121, 1966
Fin1967a	J j	Finsen, W.S.	1967ROCi..126..138F
Fin1967a		Republic Obs. Circ. 126, 138, 1967
Fin1967b	orb -	Finsen, W.S.	1967ROCi..126..149F
Fin1967b		Republic Obs. Circ. 126, 149-150, 1967
Fin1968a	orb -	Finsen, W.S.	1968ROCi..127..170F
Fin1968a		Republic Obs. Circ. 127, 170-171, 1968
Fin1968b	orb -	Finsen, W.S.	1968IAUDS..44....1F
Fin1968b		Inf. Circ. 44, 1, 1968
Fin1969a	Ma j	Finsen, W.S.	1969ROCi..128..187F
Fin1969a	+J	Republic Obs. Circ. 128, 187, 1969
Fin1969b	orb -	Finsen, W.S.	1969ROCi..128..190F
Fin1969b		Republic Obs. Circ. 128, 190, 1969
Fin1969c	orb -	Finsen, W.S.	1969ROCi..128..194F
Fin1969c		Republic Obs. Circ. 128, 194-195, 1969
Fin1969d	orb -	Finsen, W.S.	1969IAUDS..47....1F
Fin1969d		Inf. Circ. 47, 1, 1969
Fin1970a	orb -	Finsen, W.S.	1970IAUDS..52....1F
Fin1970a		Inf. Circ. 52, 1, 1970 (also Republic Obs. Circ. 130, 261, 1970)	1970ROCi..130..261F
Fin1970b	-	Finsen, W.S. & Worley, C.E.	1970ROCi..130..203F
Fin1970b		Republic Obs. Circ. 130, 203, 1970 (Third Orbit Catalog)
Fin1973a	orb -	Finsen, W.S.	1973IAUDS..60....1F
Fin1973a		Inf. Circ. 60, 1, 1973
Fin1973b	orb -	Finsen, W.S.	1973IAUDS..61....1F
Fin1973b		Inf. Circ. 61, 1, 1973
Fin1976	orb -	Finsen, W.S.	1976IAUDS..69....1F
Fin1976		Inf. Circ. 69, 1, 1976
Fin1977a	orb -	Finsen, W.S.	1977IAUDS..71....1F
Fin1977a		Inf. Circ. 71, 1, 1977
Fin1977b	orb -	Finsen, W.S.	1977IAUDS..72....1F
Fin1977b		Inf. Circ. 72, 1, 1977
Fin1978	orb -	Finsen, W.S.	1978IAUDS..74....1F
Fin1978		Inf. Circ. 74, 1, 1978
Fin9999	Ma -	Finsen, W.S.	...................
Fin9999	+J	Unpublished, manuscript or reference not found.
Skf2000	Ma -	Skiff, B.A.	...................
Skf2000		Webb Soc., Double Star Circ. 8, 2000 (may not be properly precessed)
Skf2002	C -	Skiff, B.A.	...................
Skf2002		private communication, 2002
Skf2002		(measure based on 2MASS data, may not be properly precessed)
Skf2003	-	Skiff, B.A.	...................
Skf2003		private communication, 2003 (may not be properly precessed)
Skf2004	-	Skiff, B.A.	...................
Skf2004		private communication, 2004 (may not be properly precessed)
Skf2004		(coordinates and identifications for Stock & Wroblewski pairs)
Skf2005	C -	Skiff, B.A.	...................
Skf2005		private communication, 2005 (may not be properly precessed)
Skf2006	-	Skiff, B.A.	...................
Skf2006		private communication, 2006 (may not be properly precessed)
Skf2006b	Pa -	Skiff, B.A.	...................
Skf2006b		private communication, 2006 (may not be properly precessed)
Skf2006b		(data mining of Stephenson, C.B., AJ 91, 144, 1986)	1986AJ.....91..144S
Skf2006c	Po -	Skiff, B.A.	...................
Skf2006c		private communication, 2006 (may not be properly precessed)
Skf2006c		(data mining of Joy & Abt, ApJS 28, 1, 1974)	1974ApJS...28....1J
Skf2007	-	Skiff, B.A.	...................
Skf2007		private communication, 2007 (may not be properly precessed)
Skf2009	E2 -	Skiff, B.A.	...................
Skf2009		private communication, 2009 (may not be properly precessed)
Skf2010	C j	Skiff, B.A.	...................
Skf2010	+E+	private communication, 2010 (may not be properly precessed)
Skf2010	+Pa
Skf2011	C j	Skiff, B.A.	...................
Skf2011	+E+	private communication, 2011 (may not be properly precessed)
Skf2011	+H+
Skf2011	+M+
Skf2011	+P+
Skf2011	+T
Skf2011b	Pa j	Skiff, B.A.	...................
Skf2011b	+E+	Webb Soc., Double Star Circ. 19, 2011 (may not be properly precessed)
Skf2012	A j	Skiff, B.A.	...................
Skf2012	+C	private communication, 2012 (may not be properly precessed)
Skf2012	+E+
Skf2012	+H+
Skf2012	+P+
Skf2012	+T+
Skf2012b	C j	Skiff, B.A.	...................
Skf2012b		private communication, 2012 (may not be properly precessed)
Skf2012b		(measure calculated from component coords in Alcock et al., ApJ 562, 337, 2001)	2001ApJ...562..337A
Skf2012c	Ci -	Skiff, B.A.	...................
Skf2012c		private communication, 2012 (may not be properly precessed)
Skf2012c		(measure calculated from component coords in FLX2006)	2006ApJ...639..816E
Skf2012d	Pa j	Skiff, B.A.	...................
Skf2012d		private communication, 2012 (may not be properly precessed)
Skf2012d		(measure calculated from component coords in Fresneau et al., A&A 469, 1221, 2007)	2007A&A...469.1221F
Skf2012e	C j	Skiff, B.A.	...................
Skf2012e		private communication, 2012 (may not be properly precessed)
Skf2012e		(measure calculated from component coords in Slesnick et al. 2002)	2002ApJ...576..880S
Skf2012f	C j	Skiff, B.A.	...................
Skf2012f	+H	private communication, 2012 (may not be properly precessed)
Skf2012f		(measure calculated from component coords in Romano et al., A&A 488, 1221, 2008)	2008A&A...488.1221R
Skf2012g	C -	Skiff, B.A.	...................
Skf2012g		private communication, 2012 (may not be properly precessed)
Skf2012g		(measure calculated from component coords in Trullols et al. 1997)	1997A&A...324..549T
Skf2012h	C -	Skiff, B.A.	...................
Skf2012h		private communication, 2012 (may not be properly precessed)
Skf2012h		(measure calculated from component coords in Herbig, ApJ 497, 736, 1998)	1998ApJ...497..736H
Skf2012i	H -	Skiff, B.A.	...................
Skf2012i		private communication, 2012 (may not be properly precessed)
Skf2012i		(measure calculated from component coords in Najita et al. 2000)	2000ApJ...541..977N
Skf2012j	C j	Skiff, B.A.	...................
Skf2012j		private communication, 2012 (may not be properly precessed)
Skf2012j		(measure calculated from component coords in Luhman et al. 2003)	2003ApJ...593.1093L
Skf2012k	C -	Skiff, B.A.	...................
Skf2012k		private communication, 2012 (may not be properly precessed)
Skf2012k		(measure calculated from component coords in Cohen et al. 2004)	2004AJ....127.1602C
Skf2012l	C -	Skiff, B.A.	...................
Skf2012l		private communication, 2012 (may not be properly precessed)
Skf2012l		(measure calculated from component coords in Littlefair et al, MNRAS 358,341,2005)	2005MNRAS.358..341L
Skf2012m	H -	Skiff, B.A.	...................
Skf2012m		private communication, 2012 (may not be properly precessed)
Skf2012m		(measure calculated from component coords in Lada et al., AJ 131, 1574, 2006)	2006ApJ...131.1574L
Skf2012n	C -	Skiff, B.A.	...................
Skf2012n		private communication, 2012 (may not be properly precessed)
Skf2012n		(measure calculated from component coords in Mayne et al. 2007)	2007MNRAS.375.1220M
Skf2012o	E -	Skiff, B.A.	...................
Skf2012o	+E2	private communication, 2012 (may not be properly precessed)
Skf2012o		(measure calculated from component coords in Poleski et al. 2011)	2011AcA....61..199P
Skf2012q	C j	Skiff, B.A.	...................
Skf2012q	+E+	Webb Soc., Double Star Circ. 20, 2012 (may not be properly precessed)
Skf2012q	+H+
Skf2012q	+Mr
Skf2012q	+P+
Skf2012q	+T
Skf2013	A j	Skiff, B.A.	...................
Skf2013	+C	private communication, 2013 (may not be properly precessed)
Skf2013	+E+
Skf2013	+H+
Skf2013	+Ma
Skf2013	+P+
Skf2013	+T
Skf2013b	C j	Skiff, B.A.	...................
Skf2013b	+E+	Webb Soc., Double Star Circ. 21, 2013 (may not be properly precessed)
Skf2013b	+H+
Skf2013b	+P+
Skf2013b	+T+
Skf2013c	E -	Skiff, B.A.	...................
Skf2013c	+Pa	private communication, 2013 (may not be properly precessed)
Skf2013c		(measure calculated from component coords in Galadi-Enriquez et al. 1998)	1998A&AS..131..239G
Skf2014	C j	Skiff, B.A.	...................
Skf2014	+E+	private communication, 2014 (may not be properly precessed)
Skf2014	+H+
Skf2014	+P+
Skf2014b	C j	Skiff, B.A.	...................
Skf2014b	+E+	Webb Soc., Double Star Circ. 22, 2014 (may not be properly precessed)
Skf2014b	+H+
Skf2014b	+M+
Skf2014b	+P+
Skf2014b	+T
Skf2014c	E -	Skiff, B.A.	...................
Skf2014c	+Pa	Webb Soc., Double Star Circ. 22, 2014 (may not be properly precessed)
Skf2014c		(measure calculated from component coords in Galadi-Enriquez et al. 1998)	1998A&AS..131..239G
Skf2014d	Pa w	Skiff, B.A.	...................
Skf2014d		Webb Soc., Double Star Circ. 22, 2014 (may not be properly precessed)
Skf2014d		(measure calculated from component coords in Fresneau et al., A&A 469, 1221, 2007)	2007A&A...469.1221F
Skf2015	C j	Skiff, B.A.	...................
Skf2015	+E+	private communication, 2015 (may not be properly precessed)
Skf2015	+H+
Skf2015	+P+
Skf2015	+T
Skf2015b	C j	Skiff, B.A.	...................
Skf2015b	+E+	Webb Soc., Double Star Circ. 23, 40, 2015 (may not be properly precessed)
Skf2015b	+Hw
Skf2015b	+P+
Skf2015c	C j	Skiff, B.A.	...................
Skf2015c	+E+	Webb Soc., Double Star Circ. 23, 49, 2015 (may not be properly precessed)
Skf2015c	+H+
Skf2015c	+P+
Skf2015c	+T
Skf2015d	C j	Skiff, B.A.	...................
Skf2015d	+E+	private communication, 2015 (list 38; may not be properly precessed)
Skf2015d	+H+
Skf2015d	+P+
Skf2015d	+T
Skf2015e	C j	Skiff, B.A.	...................
Skf2015e	+E+	private communication, 2015 (list 39; may not be properly precessed)
Skf2015e	+H+
Skf2015e	+P+
Skf2015e	+T
Skf2016a	C j	Skiff, B.A.	...................
Skf2016a	+E+	private communication, 2016 (list 40; may not be properly precessed)
Skf2016a	+H+
Skf2016a	+P+
Skf2016a	+T
Skf2016b	Pa j	Skiff, B.A. (measure in Csr2016)	...................
Skf2016b	+P	Webb Soc., Double Star Circ. 24, 40, 2016
Skf2016b	+E2
Skf2016b	+Ht
Skf2016b	+Eu
Skf2016b	+C
Skf2016b	+Hw
Skf2016b	+Er
Skf2016c	P+ j	Skiff, B.A.	...................
Skf2016c	+C	Webb Soc., Double Star Circ. 24, 43, 2016
Skf2016c	+E+
Skf2016c	+H+
Skf2016c	+P+
Skf2016c	+T+
Skf2016d	C j	Skiff, B.A.	...................
Skf2016d	+E+	private communication, 2016 (list 41; may not be properly precessed)
Skf2016d	+H+
Skf2016d	+P+
Skf2016d	+T
Skf2016e	C j	Skiff, B.A.	...................
Skf2016e	+E+	private communication, 2016 (14 June email; may not be properly precessed)
Skf2016f	C -	Skiff, B.A.	...................
Skf2016f	+E+	private communication, 2016 (list 42; may not be properly precessed)
Skf2016f	+H+
Skf2016f	+P+
Skf2016f	+T
Skf2016g	C j	Skiff, B.A.	...................
Skf2016g	+E+	private communication, 2016 (list 43; may not be properly precessed)
Skf2016g	+H+
Skf2016g	+P+
Skf2016g	+T
Skf2016h	Hg -	Skiff, B.A.	...................
Skf2016h		private communication, 2016 (1 December email; may not be properly precessed)
Skf2016i	Hg -	Skiff, B.A.	...................
Skf2016i		private communication, 2016 (20 December email; may not be properly precessed)
Skf2016j	Hg -	Skiff, B.A.	...................
Skf2016j		private communication, 2016 (24 December email; may not be properly precessed)
Skf2017a	C+ j	Skiff, B.A.	...................
Skf2017a	+H	private communication, 2017 (13 January email; may not be properly precessed)
Skf2017b	Hg -	Skiff, B.A.	...................
Skf2017b		private communication, 2017 (14 January email; may not be properly precessed)
Skf2017b
Skf2017c	C+ j	Skiff, B.A.	...................
Skf2017c	+E+	private communication, 2017 (30 January email; may not be properly precessed)
Skf2017c	+H+
Skf2017c	+P
Skf2017d	Hg -	Skiff, B.A.	...................
Skf2017d		private communication, 2017 (26 Febuary email; may not be properly precessed)
Skf2017e	C+ j	Skiff, B.A.	...................
Skf2017e	+P	private communication, 2017 (9 March email; may not be properly precessed)
Skf2017f	E+ -	Skiff, B.A.	...................
Skf2017f	+H	private communication, 2017 (24 May email; may not be properly precessed)
Skf2017g	P+ u	Skiff, B.A.	...................
Skf2017g	+C+	Webb Soc., Double Star Circ. 25, 62, 2017
Skf2017g	+E+
Skf2017g	+H+
Skf2017g	+T
Skf2017h	Hg -	Skiff, B.A.	...................
Skf2017h		private communication, 2017 (24 June email; may not be properly precessed)
Skf2017i	H+ w	Skiff, B.A.	...................
Skf2017i	+P+	private communication, 2017 (11 July email; may not be properly precessed)
Skf2017i	+E+
Skf2017i	+C
Skf2017j	H+ w	Skiff, B.A.	...................
Skf2017j	+P+	private communication, 2017 (15 July emails; may not be properly precessed)
Skf2017j	+E
Skf2017k	C+ -	Skiff, B.A.	...................
Skf2017k	+E+	private communication, 2017 (17 July emails; may not be properly precessed)
Skf2017k	+H
Skf2017l	C+ -	Skiff, B.A.	...................
Skf2017l	+E+	private communication, 2017 (18 July emails; may not be properly precessed)
Skf2017l	+H
Skf2017m	P+ w	Skiff, B.A.	...................
Skf2017m	+E+	private communication, 2017 (20 July emails; may not be properly precessed)
Skf2017m	+H+
Skf2017m	+C
Skf2017n	E+ -	Skiff, B.A.	...................
Skf2017n	+H	private communication, 2017 (25 July emails; may not be properly precessed)
Skf2017o	E+ w	Skiff, B.A.	...................
Skf2017o	+P+	private communication, 2017 (20 August emails; may not be properly precessed)
Skf2017o	+C
Skf2017p	E+ j	Skiff, B.A.	...................
Skf2017p	+P+	private communication, 2017 (2 October emails; may not be properly precessed)
Skf2017p	+C+
Skf2017p	+H
Skf2017q	E+ w	Skiff, B.A.	...................
Skf2017q	+P+	private communication, 2017 (3 October emails; may not be properly precessed)
Skf2017q	+H
Skf2018a	E j	Skiff, B.A.	...................
Skf2018a		private communication, 2018 (18 January emails; may not be properly precessed)
Skf2018b	E+ j	Skiff, B.A.	...................
Skf2018b	+C	private communication, 2018 (10 February emails; may not be properly precessed)
Skf2018c	E+ j	Skiff, B.A.	...................
Skf2018c	+C	private communication, 2018 (16 February emails; may not be properly precessed)
Skf2018d	E+ j	Skiff, B.A.	...................
Skf2018d	+C	private communication, 2018 (6 March emails; may not be properly precessed)
Skf2018e	E+ j	Skiff, B.A.	...................
Skf2018e	+not	private communication, 2018 (15 March emails; may not be properly precessed)
Skf2018f	not j	Skiff, B.A.	...................
Skf2018f		private communication, 2018 (9 March emails; may not be properly precessed)
Skf2018g	Hg j	Skiff, B.A.	...................
Skf2018g		private communication, 2018 (20 March emails; may not be properly precessed)
Skf2018h	H j	Skiff, B.A.	...................
Skf2018h	+E	private communication, 2018 (6 April emails; may not be properly precessed)
Skf2018i	H j	Skiff, B.A.	...................
Skf2018i	+P	private communication, 2018 (19 October emails; may not be properly precessed)
Skf2018j	H j	Skiff, B.A.	...................
Skf2018j	+P	private communication, 2018 (24 November emails; may not be properly precessed)
Skf2018k	H j	Skiff, B.A.	...................
Skf2018k	+P	private communication, 2018 (19 December emails; may not be properly precessed)
Skf2019a	H j	Skiff, B.A.	...................
Skf2019a		private communication, 2019 (16 July email; may not be properly precessed)
Skf2019b	H j	Skiff, B.A.	...................
Skf2019b		private communication, 2019 (6 August email; may not be properly precessed)
Skf2019c	j	Skiff, B.A.	...................
Skf2019c		private communication, 2019 (16 August email; may not be properly precessed)
Skf2019d	H j	Skiff, B.A.	...................
Skf2019d		private communication, 2019 (11 September email; may not be properly precessed)
Skf2019e	H+ j	Skiff, B.A.	...................
Skf2019e	+E	private communication, 2019 (30 July email; may not be properly precessed)
Skf2019f	C j	Skiff, B.A.	...................
Skf2019f	+E+	private communication, 2019 (list 44; may not be properly precessed)
Skf2019f	+H+
Skf2019f	+P+
Skf2019f	+T
Skf2019g	Z j	Skiff, B.A.	...................
Skf2019g		private communication, 2019 (8 October email)
Skf2020a	C j	Skiff, B.A.	...................
Skf2020a	+E+	private communication, 2020 (9 March email; may not be properly precessed)
Skf2020a	+H+
Skf2020a	+P
Skf2020b	C j	Skiff, B.A.	...................
Skf2020b	+E+	private communication, 2020 (list 45; may not be properly precessed)
Skf2020b	+H+
Skf2020b	+P+
Skf2020b	+T
Skf2020c	Hg j	Skiff, B.A.	...................
Skf2020c		private communication, 2020 (5 August email)
Skf2020d	Hg+ j	Skiff, B.A.	...................
Skf2020d	+Ek	private communication, 2020 (23 August email)
Skf2020e	Hg j	Skiff, B.A.	...................
Skf2020e		private communication, 2020 (31 August email)
Skf2020f	E	Skiff, B.A.	...................
Skf2020f		private communication, 2020 (22 November email)
Skf2021a	Hg	Skiff, B.A.	...................
Skf2021a		private communication, 2021 (13 March email)
Skf2021b	H+	Skiff, B.A.	...................
Skf2021b	+E+	private communication, 2021 (15 November email)
Skf2021c	Hg	Skiff, B.A.	...................
Skf2021c		private communication, 2021 (16 December email)
Skf2022a	E	Skiff, B.A.	...................
Skf2022a		private communication, 2022 (12 September email)
Skf2022b	Hg	Skiff, B.A.	...................
Skf2022b		private communication, 2022 (28 September email)
Skf2022c	E	Skiff, B.A.	...................
Skf2022c		private communication, 2022 (17 October email)
Skf2022d	E	Skiff, B.A.	...................
Skf2022d		private communication, 2022 (12 December email)
Skf2022e	Hg	Skiff, B.A.	...................
Skf2022e		private communication, 2022 (19 December email)
Skf2023a	Hg	Skiff, B.A.	...................
Skf2023a		private communication, 2023 (28 February email)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18383-3241	SKF2068	AC	2010	10	219	123.4	7.20	10.80	F2V		183819.80-324107.8
18383-3241	SKF2068	AC	2015	10	219	123.5	7.34	10.84	F2V	W	183819.80-324107.8
18383-3241	SKF2068	AC	2016	12	218	122.5	7.34	10.84	F2V	T	183819.80-324107.8

If you need more information about this double, apply for a data request form to the WDS.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

FoV: 30" 1' 5' 15' 30' 1° 2° 4° 5° 8° Limit: 2 3 4 5 10 15 20 25 30 50 100 Primaries only
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(') Show 18383-3241 FIN 3 AB 261 4.6 Show 18383-3241 SKF2068 AC 218 122.5 Show 18370-3301 JSP 783 17 1.0 27 Show 18363-3220 HDS2640 343 0.2 34 Show 18407-3219 JSP 941 167 5.0 38 Show 18396-3207 PRO 208 219 6.8 39 Show 18362-3311 I 637 115 0.3 40 Show 18368-3201 TDT 957 223 0.6 45 Show 18422-3222 RST2071 10 0.8 53 Show 18350-3209 TDT 947 290 2.6 54 Show 18338-3248 I 1025 233 0.4 58 Show 18338-3230 PRO 204 120 6.5 58 Show 18340-3301 OUD 7 180 0.2 59 Show 18365-3342 B 940 258 1.8 66 Show 18339-3318 BRT1782 69 3.4 67 Show 18342-3158 PRO 205 358 3.6 69 Show 18437-3229 FAL 63 338 13.4 70 Show 18343-3150 RST2064 83 3.5 72 Show 18438-3221 SHN 234 -1 0.1 72 Show 18352-3141 B 9034 346 9.0 73 Show 18346-3338 SKF 457 359 13.6 74 Show 18432-3323 JAO 6 353 15.0 75 Show 18422-3146 KPP 423 249 5.0 75 Show 18352-3139 PRO 207 72 3.3 81 Show 18358-3357 B 2455 338 6.5 83 Show 18354-3122 LDS6328 AB 119 7.5 87 Show 18354-3122 CVN 58 AC 310 6.0 87 Show 18354-3122 CVN 58 AD 211 7.3 87 Show 18354-3122 CVN 58 AE 202 7.6 87 Show 18354-3122 CVN 58 AF 307 7.9 87 Show 18354-3122 CVN 58 AG 70 8.1 87 Show 18354-3122 CVN 58 AH 212 8.5 87 Show 18354-3122 CVN 58 AI 81 8.9 87 Show 18354-3122 CVN 58 AJ 163 9.3 87 Show 18354-3122 CVN 58 AK 150 9.6 87 Show 18354-3122 CVN 58 AL 348 9.6 87 Show 18354-3122 CVN 58 AM 49 9.7 87 Show 18354-3122 CVN 58 AN 339 10.3 87 Show 18354-3122 CVN 58 AO 175 10.2 87 Show 18354-3122 CVN 58 AP 194 11.2 87 Show 18354-3122 CVN 58 AQ 330 11.3 87 Show 18354-3122 CVN 58 AR 197 11.4 87 Show 18354-3122 CVN 58 AS 87 11.5 87 Show 18354-3122 CVN 58 AT 179 12.0 87 Show 18354-3122 CVN 58 AU 222 12.2 87 Show 18354-3122 CVN 58 AV 124 12.6 87 Show 18354-3122 CVN 58 AW 69 12.7 87 Show 18354-3122 CVN 58 AX 165 13.2 87 Show 18354-3122 CVN 58 AY 178 13.3 87 Show 18354-3122 CVN 58 A,Za 182 13.6 87 Show 18354-3122 CVN 58 A,Zb 52 13.8 87

	A	B
B	pa=258.8° sep=3.93"
C	pa=213.7° sep=115.38"	pa=212.3° sep=112.64"

Name	HD 171840		Coord arcsec 2000	183819.80-324107.8		Mag	7.34		Spectral class	F2V (yellow-white)
PmRA	7.00		PmDE	-124.0		SAO	210384		HIP	91386
Tycho2	7411-06095-1		HD	171840		GC	25457		CD	CD-3214337
CP	CP-32 5465

Tycho2	7411-06095-1		Pflag			RAmdeg	279.58251126		DEmdeg	-32.68581642
PmRA	5.4		PmDE	-127.4		E RAmdeg	4		E DEmdeg	5
E pmRA	1.3		E pmDE	1.3		EpRAm	1991.62		EpDEm	1991.45
Num	13		Q RAmdeg	0.5		Q DEmdeg	0.8		Q pmRA	0.6
Q pmDE	0.8		BTmag	7.776		E BTmag	0.015		VTmag	7.340
E VTmag	0.010		Prox	977		TYC	T		HIP	91386
CCDM			RAdeg	279.58249667		DEdeg	-32.68552861		EpRA 1990	1.91
EpDE 1990	1.87		E RAdeg	3.7		E DEdeg	4.5		Posflg
Corr	-0.1

SAO	210384		DelFlag			RA1950			PmRA1950	0.0017
DE1950			PmDE1950	-0.129		Vmag	7.2		SpType	F5
Double code			Source	70		CatNum	25457		DM	CD-3214337
DMcomp			BDsup			HD	171840		M HD	0
GC	25457		RA1950rad	4.86537324		DE1950rad	-0.57121988		PmRA2000	0.0017
PmDE2000	-0.129

Catalog	H		HIP	91386		Proxy			RAhms	18 38 19.80
DEdms	-32 41 07.8		Vmag	7.29		VarFlag			R Vmag	H
RAdeg	279.582		DEdeg	-32.6855		AstroRef			Plx	13.83
CCDM	18383-3241		N CCDM	I		Nsys	1		Ncomp	1
MultFlag			Source			Qual			M HIP
Theta			Rho			HD	171840		BD
CD	CD-3214337		CP	CP-32 5465		Dm number	-3214337		VIred	0.47
SpType	F2V		R SpType			Coord arcsec 2000	183819.80-324107.8

HIP	91386		Sn	5		So	0		Nc	1
RArad	4.8796350177		DErad	-0.5704696969		Plx	14.73		PmRA	3.14
PmDE	-127.09		E RArad	0.65		E DErad	0.43		E Plx	0.74
E pmRA	1.01		E pmDE	0.61		Hpmag	7.3841		E Hpmag	0.0012
SHp	0.01		VA	0		BV	0.413		E BV	0.008
VI	0.48

Ccdm	18383-3241		RComp			Comp	A		Note1
Note2			Discov num			DRAs	1.83		DDEs	-8.8
R dRAs	10		Year			Theta			Rho
Obs	2		Vmag	7.2		Sp	F5		PmNote	*
PmRA	14		PmDE	-125		Dm number	-3214337		Cat1	CD
Name2	210384		Cat2	SAO		HD	171840		M HD
ADS BDS			M ADS BDS			N IDS			IDS	18318S3246A
HIC	91386

Coord arcsec 2000

183819.49-324108.6

Mag

12.4

Calc delta mag

5.06

Calc coord

yes

Ccdm	18383-3241		RComp			Comp	B		Note1
Note2			Discov num	FIN 3		DRAs			DDEs
R dRAs			Year	1926		Theta	268		Rho	4.7
Obs	2		Vmag	14.0		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS			M ADS BDS			N IDS			IDS	18318S3246B
HIC	91386

Coord arcsec 2000	183814.73-324243.8		Mag	10.84		PmRA	5.00		PmDE	-131.0
Tycho2	7411-05647-1		Calc delta mag	3.5		Calc coord	yes

Tycho2	7411-05647-1		Pflag			RAmdeg	279.55694221		DEmdeg	-32.71252956
PmRA	3.4		PmDE	-130.9		E RAmdeg	35		E DEmdeg	53
E pmRA	2.1		E pmDE	2.1		EpRAm	1988.04		EpDEm	1983.15
Num	4		Q RAmdeg	1.9		Q DEmdeg	1.9		Q pmRA	1.9
Q pmDE	2.0		BTmag	11.926		E BTmag	0.097		VTmag	10.840
E VTmag	0.062		Prox	999		TYC			HIP
CCDM			RAdeg	279.55693306		DEdeg	-32.71223389		EpRA 1990	1.89
EpDE 1990	1.87		E RAdeg	36.4		E DEdeg	55.6		Posflg
Corr	0.0