20227-6411 B 988

20^h 22^m 42.46^s -64° 11' 10.5" P.A. 68.00 sep 1.8 mag 8.65,12.65 Sp F0III dist. 141.64 pc (462.03 l.y.)

Coord 2000	20227-6411	Discov num	B 988	Comp		Coord arcsec 2000	20 22 42.46 -64 11 10.5
Date first	1927	Date last	2016	Obs	4
Pa first	72	Pa last	67.6	P.A. Now (θ)	67.6°
Sep first	2.1	Sep last	1.805	Sep. Now (ρ)	1.805"
Mag pri	8.65	Mag sec	12.65	delta mag (ΔM)	4	Spectral class	F0III (yellow-white)
Pri motion ra	+007	Sec motion ra	+010
Pri motion dec	+003	Sec motion dec	+002
Notes

rPM=0.31

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Pavo		HIP	100494		Tycho2	9095-00398-1		Gaia DR2	6429361262369286144
HD	193200		CP	CP-64 4040		Distance	141.64		Distance ly	462.03

WDS 20227-6411 B 988 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
B__1921a	orb -	van den Bos, W.H.	1921MNRAS..81..474V
B__1921a		MNRAS 81, 474, 1921
B__1921b	orb -	van den Bos, W.H.	.
B__1921b		Proc. Amsterdam Acad. 30, 72, 1921
B__1923a	Po j	van den Bos, W.H.	1923BAN.....1..193V
B__1923a		BAN 1, 193, 1923
B__1923b	orb -	van den Bos, W.H.	1923BAN.....2...25V
B__1923b		BAN 2, 25, 1923
B__1923c	orb -	van den Bos, W.H.	1923BAN.....2...29V
B__1923c		BAN 2, 29, 1923
B__1925a	Ma j	van den Bos, W.H.	1925AnLei..143...1V
B__1925a		Ann. Leiden Obs. 14, Pt.3, 1925
B__1925b	Ma j	van den Bos, W.H.	1925BAN.....2..197V
B__1925b	+Po	BAN 2, 197, 1925
B__1926a	orb -	van den Bos, W.H.	1926BAN.....3..127V
B__1926a		BAN 3, 127, 1926
B__1926b	orb -	van den Bos, W.H.	1926BAN.....3..128V
B__1926b		BAN 3, 128, 1926
B__1927a	orb -	van den Bos, W.H.	1927BAN.....3..261V
B__1927a		BAN 3, 261, 1927
B__1927b	-	van den Bos, W.H.	1927BAN.....4...45V
B__1927b		BAN 4, 45, 1927
B__1927b		(4th list of new southern double stars; precise measures in later references)
B__1927c	Ma -	van den Bos, W.H.	1927BAN.....4..109V
B__1927c		BAN 4, 109, 1927
B__1927c		(5th list of new southern double stars; precise measures in later references)
B__1927D	Ma -	van den Bos, W.H.	1927sdsc.book......
B__1927D		cited in SDS (Southern Double Star Cat.), 1927
B__1928a	Ma -	van den Bos, W.H.	1928BAN.....4..235V
B__1928a		BAN 4, 235, 1928
B__1928a		(6th list of new southern double stars; precise measures in later references)
B__1928b	Ma j	van den Bos, W.H.	1928AnLei..144...1V
B__1928b		Ann. Leiden Obs. 14, Pt.4, 1928
B__1928c	Ma -	van den Bos, W.H.	1928MNRAS..88..488F
B__1928c		MNRAS 88, 488, 1928
B__1928d	Ma j	van den Bos, W.H.	1928CiUO...78...13V
B__1928d		Union Obs. Johannesburg Circ. 78, 13, 1928
B__1928e	orb -	van den Bos, W.H.	.
B__1928e		Mem. Copenhagen Acad. 12, 2, 1928
B__1929a	Ma j	van den Bos, W.H.	1929CiUO...80...59V
B__1929a		Union Obs. Johannesburg Circ. 80, 59, 1929
B__1929b	orb -	van den Bos, W.H.	1929CiUO...79...49V
B__1929b		Union Obs. Johannesburg Circ. 79, 49, 1929
B__1929c	Ma -	van den Bos, W.H.	1929BAN.....5..125V
B__1929c		BAN 5, 125, 1929
B__1930a	Ma j	van den Bos, W.H.	1930CiUO...83..135V
B__1930a		Union Obs. Johannesburg Circ. 83, 135, 1930
B__1930b	Ma -	van den Bos, W.H.	1930BAN.....5..179V
B__1930b		BAN 5, 179, 1930
B__1930c	Ma -	van den Bos, W.H.	1930BAN.....5..183V
B__1930c		BAN 5, 183, 1930
B__1931a	Ma -	van den Bos, W.H.	1931MNRAS..92...19F
B__1931a		MNRAS 92, 19, 1931
B__1931b	Ma -	van den Bos, W.H.	1931CiUO...85..183V
B__1931b		Union Obs. Johannesburg Circ. 85, 183, 1931
B__1932a	Ma j	van den Bos, W.H.	1932CiUO...87..273V
B__1932a		Union Obs. Johannesburg Circ. 87, 273, 1932
B__1932b	Ma j	van den Bos, W.H.	1932CiUO...88..324V
B__1932b		Union Obs. Johannesburg Circ. 88, 324, 1932
B__1932C	Ma -	van den Bos, W.H.	1932QB821.A43......
B__1932C		cited in ADS (Aitken Double Star Cat.), 1932
B__1933a	Ma -	van den Bos, W.H.	1933BAN.....7....1V
B__1933a		BAN 7, 1, 1933
B__1933b	J -	van den Bos, W.H.	1933CiUO...90..379V
B__1933b		Union Obs. Johannesburg Circ. 90, 379, 1933
B__1933c	orb -	van den Bos, W.H.	1933CiUO...90..388V
B__1933c		Union Obs. Johannesburg Circ. 90, 388, 1933
B__1933d	Ma j	van den Bos, W.H.	1933CiUO...90..401V
B__1933d		Union Obs. Johannesburg Circ. 90, 401, 1933
B__1934a	Ma -	van den Bos, W.H.	1934CiUO...92...61V
B__1934a		Union Obs. Johannesburg Circ. 92, 61, 1934
B__1934b	orb -	van den Bos, W.H.	1934CiUO...92..102V
B__1934b		Union Obs. Johannesburg Circ. 92, 102, 1934
B__1935a	Ma j	van den Bos, W.H.	1935CiUO...94..134V
B__1935a	+J	Union Obs. Johannesburg Circ. 93, 134, 1935
B__1935b	orb -	van den Bos, W.H.	1935CiUO...94..148V
B__1935b		Union Obs. Johannesburg Circ. 94, 148, 1935
B__1935c	Ma j	van den Bos, W.H.	1935CiUO...94..149V
B__1935c		Union Obs. Johannesburg Circ. 94, 149, 1935
B__1935D	orb -	van den Bos, W.H.	1935QB821.A3.......
B__1935D		letter cited by Aitken, The Binary Stars, 1935
B__1936a	orb -	van den Bos, W.H.	1936CiUO...96..231V
B__1936a		Union Obs. Johannesburg Circ. 96, 231, 1936
B__1936b	Ma j	van den Bos, W.H.	1936CiUO...96..234V
B__1936b		Union Obs. Johannesburg Circ. 96, 234, 1936
B__1937a	orb -	van den Bos, W.H.	1937CiUO...98..341V
B__1937a		Union Obs. Johannesburg Circ. 98, 341, 1937
B__1937b	Ma -	van den Bos, W.H.	1937CiUO...98..362V
B__1937b		Union Obs. Johannesburg Circ. 98, 362, 1937
B__1938a	orb -	van den Bos, W.H.	1938CiUO...99..445V
B__1938a		Union Obs. Johannesburg Circ. 99, 445, 1938
B__1938d	orb -	van den Bos, W.H.	1938CiUO..100..480V
B__1938d		Union Obs. Johannesburg Circ. 100, 480, 1938
B__1938e	Ma j	van den Bos, W.H.	1938CiUO..100..481V
B__1938e		Union Obs. Johannesburg Circ. 100, 481, 1938
B__1940	orb -	van den Bos, W.H.	1940CiUO..102...49V
B__1940		Union Obs. Johannesburg Circ. 102, 49, 1940
B__1943A	Ma -	van den Bos, W.H.	1943AJ.....50..139A
B__1943A		cited by Alden (1943 AJ 50, 139)
B__1941	orb -	van den Bos, W.H.	1941CiUO..104...73V
B__1941		Union Obs. Johannesburg Circ. 104, 73, 1941
B__1945	orb -	van den Bos, W.H.	1945AJ.....51..198V
B__1945		AJ 51, 198, 1945
B__1947	Ma -	van den Bos, W.H.	1947CiUO..105..134V
B__1947		Union Obs. Johannesburg Circ. 105, 134, 1947
B__1947b	Po j	van den Bos, W.H. (in Voute et al.)	1947AnBos...6....3V
B__1947b		Ann. Bosscha Obs. Lembang 6, Pt.3, C1, 1947
B__1948	Ma -	van den Bos, W.H.	1948CiUO..107..259V
B__1948		Union Obs. Johannesburg Circ. 107, 259, 1948
B__1949a	orb -	van den Bos, W.H.	1949CiUO..108..310V
B__1949a		Union Obs. Johannesburg Circ. 108, 310, 1949
B__1949b	orb -	van den Bos, W.H.	1949CiUO..108..311V
B__1949b		Union Obs. Johannesburg Circ. 108, 311, 1949
B__1949c	Ma j	van den Bos, W.H.	1949CiUO..108..312V
B__1949c		Union Obs. Johannesburg Circ. 108, 312, 1949
B__1950a	orb -	van den Bos, W.H.	1950CiUO..109..366V
B__1950a		Union Obs. Johannesburg Circ. 109, 366, 1950
B__1950b	orb -	van den Bos, W.H.	1950CiUO..109..370V
B__1950b		Union Obs. Johannesburg Circ. 109, 370, 1950
B__1950c	Ma -	van den Bos, W.H.	1950CiUO..109..371V
B__1950c		Union Obs. Johannesburg Circ. 109, 371, 1950
B__1951a	Ma j	van den Bos, W.H.	1951CiUO..111...13V
B__1951a	+J	Union Obs. Johannesburg Circ. 111, 13, 1951
B__1951b	orb -	van den Bos, W.H.	1951CiUO..111...11V
B__1951b		Union Obs. Johannesburg Circ. 111, 11, 1951
B__1951c	orb -	van den Bos, W.H.	1951CiUO..112..143V
B__1951c		Union Obs. Johannesburg Circ. 112, 143, 1951
B__1951d	-	van den Bos, W.H.	1951JO.....34...85V
B__1951d		J. Obs. 34, 85, 1951
B__1953a	Ma -	van den Bos, W.H.	1953CiUO..113..185V
B__1953a		Union Obs. Johannesburg Circ. 113, 185, 1953
B__1953b	orb -	van den Bos, W.H.	1953CiUO..113..209V
B__1953b		Union Obs. Johannesburg Circ. 113, 209-219, 1953	1953MNSSA..12...19V
B__1953b		(also MNASSA 12, 19, 1953; MNASSA 12, 57, 1953)	1953MNSSA..12...57V
B__1954	orb -	van den Bos, W.H.	1954CiUO..114..235V
B__1954		Union Obs. Johannesburg Circ. 114, 235, 1954
B__1956a	Ma -	van den Bos, W.H.	1956CiUO..115..266V
B__1956a	+J	Union Obs. Johannesburg Circ. 115, 266, 1956
B__1956b	orb -	van den Bos, W.H.	1956CiUO..115..279V
B__1956b		Union Obs. Johannesburg Circ. 115, 279-284, 1956
B__1956c	orb -	van den Bos, W.H.	1956MNSSA..15...39V
B__1956c		MNASSA 15, 39, 1956
B__1957a	orb -	van den Bos, W.H.	1957CiUO..116..289V
B__1957a		Union Obs. Johannesburg Circ. 116, 289-291, 1957
B__1957b	Ma -	van den Bos, W.H.	1957CiUO..116..291V
B__1957b		Union Obs. Johannesburg Circ. 116, 291, 1957
B__1958	Ma -	van den Bos, W.H.	1958AJ.....63...63V
B__1958		AJ 63, 63, 1958
B__1959a	Mb j	van den Bos, W.H.	1959ApJS....4...45V
B__1959a		ApJS 4, 45, 1959
B__1959b	orb -	van den Bos, W.H.	1959JO.....42...79V
B__1959b		J. Obs. 42, 79, 1959
B__1959c	orb -	van den Bos, W.H.	1959JO.....42...93V
B__1959c		J. Obs. 42, 93, 1959
B__1959d	Ma -	van den Bos, W.H.	1959CiUO..118..308V
B__1959d		Union Obs. Johannesburg Circ. 118, 308, 1959
B__1959e	orb -	van den Bos, W.H.	1959CiUO..118..311V
B__1959e		Union Obs. Johannesburg Circ. 118, 311-312, 1959
B__1960a	Ma -	van den Bos, W.H.	1960CiUO..119..321V
B__1960a		Union Obs. Johannesburg Circ. 119, 321, 1960
B__1960b	Ma j	van den Bos, W.H.	1960PYerO...9....1B
B__1960b	+Mb	Pub. Yerkes Obs. 9, pt. 1, 1960
B__1960c	orb -	van den Bos, W.H.	1960JO.....43..145V
B__1960c		J. Obs. 43, 145, 1960
B__1960d	orb -	van den Bos, W.H.	1960JO.....43..152V
B__1960d		J. Obs. 43, 152, 1960
B__1960e	orb -	van den Bos, W.H.	1960CiUO..119..359V
B__1960e		Union Obs. Johannesburg Circ. 119, 339-340, 1960
B__1960f	orb -	van den Bos, W.H.	1960CiUO..119..341V
B__1960f		Union Obs. Johannesburg Circ. 119, 341-343, 1960
B__1961a	Ma -	van den Bos, W.H.	1961CiUO..120..353V
B__1961a		Union Obs. Johannesburg Circ. 120, 353, 1961
B__1961b	orb -	van den Bos, W.H.	1961CiUO..120..374V
B__1961b		Union Obs. Johannesburg Circ. 120, 374-375, 1961
B__1961c	orb -	van den Bos, W.H.	1961CiUO..120..377V
B__1961c		Union Obs. Johannesburg Circ. 120, 377-379, 1961
B__1961d	orb -	van den Bos, W.H.	1961CiUO..120..380V
B__1961d		Union Obs. Johannesburg Circ. 120, 380-381, 1961
B__1961e	orb -	van den Bos, W.H.	1961PASP...74..201V
B__1961e		PASP 74, 201, 1961
B__1962a	Ma -	van den Bos, W.H.	1962AJ.....67..141V
B__1962a		AJ 67, 141, 1962
B__1962b	orb -	van den Bos, W.H.	1962AJ.....67..552V
B__1962b		AJ 67, 552, 1962
B__1962c	orb -	van den Bos, W.H.	1962JO.....45...55V
B__1962c		J. Obs. 45, 55, 1962
B__1962d	Ma j	van den Bos, W.H.	1962AJ.....67..555V
B__1962d		AJ 67, 555, 1962
B__1963a	Ma -	van den Bos, W.H.	1963AJ.....68...57V
B__1963a		AJ 68, 57, 1963
B__1963b	Ma j	van den Bos, W.H.	1963AJ.....68..582V
B__1963b		AJ 68, 582, 1963
B__1964a	orb -	van den Bos, W.H.	1964ROCi..123...62V
B__1964a		Republic Obs. Circ. 123, 62, 1964
B__1964b	orb -	van den Bos, W.H.	1964JO.....47...34V
B__1964b		J. Obs. 47, 34, 1964
B__1965a	Ma -	van den Bos, W.H.	1965ROCi..124...70V
B__1965a		Republic Obs. Circ. 124, 70, 1965
B__1965b	orb -	van den Bos, W.H.	1965ROCi..124...86V
B__1965b		Republic Obs. Circ. 124, 86, 1965
B__1966a	Ma -	van den Bos, W.H.	1966ROCi..125...93V
B__1966a		Republic Obs. Circ. 125, 93, 1966
B__1966b	orb -	van den Bos, W.H.	1966ROCi..125..112V
B__1966b		Republic Obs. Circ. 125, 112, 1966
B__1966c	orb -	van den Bos, W.H.	1966ROCi..125..118V
B__1966c		Republic Obs. Circ. 125, 118, 1966
B__1966d	orb -	van den Bos, W.H.	1966ROCi..125..119V
B__1966d		Republic Obs. Circ. 125, 119-120, 1966
B__1967	Ma -	van den Bos, W.H.	1967ROCi..126..127V
B__1967		Republic Obs. Circ. 126, 127, 1967
B__1967b	orb -	van den Bos, W.H.	1967JO.....13..119V
B__1967b		J. Obs. 13, 119, 1967
B__1968	Ma -	van den Bos, W.H.	1968ROCi..127..157V
B__1968		Republic Obs. Circ. 127, 157, 1968
B__9999	Ma -	van den Bos, W.H.	...................
B__9999		Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20227-6411	B 988		1991	3	67	1.8	8.65	12.65	F0III		202242.46-641110.5
20227-6411	B 988		2016	4	68	1.8	8.65	12.65	F0III		202242.46-641110.5

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

WDS 20227-6411 B 988 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20227-6411 B 988 : MEASURES

No records found.

WDS 20227-6411 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20227-6411 : ALADIN DSS IMAGE @ 20^h 22^m 42.46^s -64° 11' 10.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20227-6411 B 988 : NEIGHBORHOODS

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		20227-6411	B 988		68	1.8
Show		20218-6420	LDS 708	AB	210	22.1	10
Show		20218-6420	BAU 62	AC	281	46.3	10
Show		20278-6357	UC 4191	AB	214	28.3	37
Show		20146-6426	HJ 5171	AB	305	17.3	55
Show		20146-6426	HJ 5171	AC	335	34.6	55
Show		20146-6426	BAU 60	AD	215	52.1	55
Show		20146-6426	HJ 5171	BC		21.5	56
Show		20223-6511	KPP3070		138	3.8	61
Show		20319-6420	TDT2342		182	2.5	61
Show		20270-6303	RST1069		115	0.4	74
Show		20115-6437	TDS1049		27	1.2	77
Show		20348-6414	UC 4220		9	41.6	79
Show		20118-6337	RST5153	AB	331	0.3	80
Show		20118-6337	HJ 5167	AB,C	33	7.3	80
Show		20300-6305	KPP4202		65	2.1	83
Show		20232-6249	NSN 445		192	2.0	83
Show		20241-6245	UC 4167		328	90.2	87
Show		20360-6412	B 991		167	3.1	87
Show		20357-6348	TDT2403		237	1.0	89
Show		20247-6541	UC 4170		221	26.6	91
Show		20347-6319	HU 1615		287	0.2	96
Show		20074-6415	RST5467		285	0.8	100
Show		20370-6455	TSN 35		73	35.3	102
Show		20262-6551	B 989		70	1.2	103
Show		20354-6519	HDS2942		86	0.7	106
Show		20072-6453	KPP 457		344	4.6	109
Show		20267-6224	TDT2278		224	0.9	111
Show		20289-6228	HJ 5197		272	61.2	112
Show		20286-6225	HJ 5196		275	18.5	112
Show		20398-6430	HJ 5217		232	7.7	113
Show		20397-6436	FAB 16		358	20.0	114
Show		20293-6225	BAU9004		85	25.4	115
Show		20371-6523	UC 4233		2	9.3	117
Show		20407-6411	HU 1616		68	0.7	118
Show		20071-6514	RST1057		50	1.7	119
Show		20330-6230	FAL 68		312	9.0	123
Show		20416-6427	UC 4259		191	13.9	124
Show		20327-6225	TDT2354		303	1.4	126
Show		20161-6210	I 411		273	0.8	130
Show		20360-6237	KPP3073		58	13.7	130
Show		20423-6348	TDT2483		87	0.6	131
Show		20240-6623	KPP1588		67	12.1	133
Show		20121-6608	UC 4120		323	15.4	135
Show		20051-6304	HJ 5163		249	1.3	136
Show		20079-6549	TDT2009		303	0.5	136
Show		20422-6332	RST1075		286	1.4	136
Show		20094-6600	KPP 819		173	7.0	138
Show		20073-6551	B 985		206	4.7	140
Show		20151-6625	KPP 464		112	3.6	143
Show		20363-6219	TDT2412		18	0.6	145

WDS 20227-6411 : COMPONENTS

	A
B	pa=46.6° sep=1.00"

20227-6411 A

Componente originario normalizzato	AB	Coord arcsec 2000	202242.46-641110.5	Mag	8.65	Spectral class	F0III (yellow-white)
PmRA	7.00	PmDE	3.0	HIP	100494	Tycho2	9095-00398-1
HD	193200	CP	CP-64 4040

Tycho2

Tycho2	9095-00398-1	Pflag		RAmdeg	305.67690811	DEmdeg	-64.18624320
PmRA	6.5	PmDE	3.0	E RAmdeg	7	E DEmdeg	6
E pmRA	1.4	E pmDE	1.4	EpRAm	1990.65	EpDEm	1991.08
Num	9	Q RAmdeg	1.0	Q DEmdeg	0.8	Q pmRA	1.1
Q pmDE	0.9	BTmag	8.965	E BTmag	0.017	VTmag	8.649
E VTmag	0.013	Prox	18	TYC	T	HIP	100494
CCDM	A	RAdeg	305.67687194	DEdeg	-64.18625028	EpRA 1990	1.39
EpDE 1990	1.63	E RAdeg	6.6	E DEdeg	6.4	Posflg
Corr	0.1

Hipparcos

Catalog	H	HIP	100494	Proxy	H	RAhms	20 22 42.45
DEdms	-64 11 10.5	Vmag	8.6	VarFlag		R Vmag	H
RAdeg	305.677	DEdeg	-64.1862	AstroRef	A	Plx	6.88
CCDM	20227-6411	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	B	M HIP	AB
Theta	66	Rho	1.798	HD	193200	BD
CD		CP	CP-64 4040	Dm number	-64 4040	VIred	0.31
SpType	F0III	R SpType		Coord arcsec 2000	202242.45-641110.5

Hipparcos 2

HIP	100494	Sn	15	So	3	Nc	2
RArad	5.3350678831	DErad	-1.120261376	Plx	7.06	PmRA	9.66
PmDE	1.96	E RArad	0.82	E DErad	0.69	E Plx	1.13
E pmRA	0.91	E pmDE	0.84	Hpmag	8.6754	E Hpmag	0.002
SHp	0.018	VA	0	BV	0.3	E BV	0.495
VI	0.31

CCDM

Ccdm	20227-6411	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.58	DDEs	-11.0
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.8	Sp	A5	PmNote	*
PmRA	24	PmDE	-2	Dm number	-64 4040	Cat1	CPD
Name2		Cat2		HD	193200	M HD
ADS BDS		M ADS BDS		N IDS		IDS	20138S6430A
HIC	100494

20227-6411 B

Componente originario normalizzato	AB		Coord arcsec 2000	202242.57-641109.8		Mag	12.65		PmRA	10.00
PmDE	2.0		Calc delta mag	4		Calc coord	yes

CCDM

Ccdm	20227-6411	RComp		Comp	B	Note1
Note2		Discov num	B 988	DRAs		DDEs
R dRAs		Year	1927	Theta	072	Rho	2.1
Obs	1	Vmag	13.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20138S6430B
HIC	100494