20497-3921 B 502 (HD 198143)

20^h 49^m 42.27^s -39° 20' 49.2" P.A. 113.00 sep 1.3 mag 9.52,11.11 Sp G5IV

Coord 2000	20497-3921	Discov num	B 502	Comp		Coord arcsec 2000	20 49 42.27 -39 20 49.2
Date first	1927	Date last	2016	Obs	7
Pa first	113	Pa last	112.6	P.A. Now (θ)	112.6°
Sep first	1.4	Sep last	1.256	Sep. Now (ρ)	1.256"
Mag pri	9.52	Mag sec	11.11	delta mag (ΔM)	1.59	Spectral class	G5IV (yellow)
Pri motion ra	-035	Sec motion ra	-035
Pri motion dec	-006	Sec motion dec	-006
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 198143		Constellation	Microscopium		Tycho2	7963-01464-1		Gaia DR2	6678757678101873280
HD	198143

WDS 20497-3921 B 502 (HD 198143) : 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
20497-3921	B 502		1991	5	118	1.2	9.52	11.11	G5IV		204942.27-392049.2
20497-3921	B 502		2015	6	113	1.3	9.52	11.11	G5IV		204942.27-392049.2
20497-3921	B 502		2016	7	113	1.3	9.52	11.11	G5IV		204942.27-392049.2

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

WDS 20497-3921 B 502 (HD 198143) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20497-3921 B 502 (HD 198143) : MEASURES

No records found.

WDS 20497-3921 (HD 198143) : 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 20497-3921 (HD 198143) : ALADIN DSS IMAGE @ 20^h 49^m 42.27^s -39° 20' 49.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20497-3921 B 502 (HD 198143) : 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		20497-3921	B 502		113	1.3
Show		20501-3943	R 326		293	40.3	23
Show		20503-3839	B 503		116	2.5	43
Show		20523-4000	SKF1097		2	9.6	50
Show		20492-4012	TSN 194		187	0.0	52
Show		20530-3836	TOI 154		203	0.2	60
Show		20442-3914	WSP 7	AB	229	4.5	65
Show		20442-3914	WSP 7	AC	137	14.3	65
Show		20436-3912	TDT2502		230	0.7	72
Show		20435-3905	TDT2501		52	0.5	74
Show		20452-4017	CRU9013	AB	101	70.2	76
Show		20452-4017	DAM 815	AC	180	19.5	76
Show		20521-3810	SEE 429		179	3.4	77
Show		20563-3916	TDT2646		242	1.6	77
Show		20433-3945	WG 262		199	3.3	79
Show		20561-3953	SKF1098		225	6.9	81
Show		20574-3913	TDT2658		30	0.5	90
Show		20562-3828	TDT2645	AB	241	0.7	93
Show		20576-3908	WG 263		34	7.1	94
Show		20419-3853	TOI2247		347	0.3	95
Show		20517-4054	HJ 5228		104	32.5	97
Show		20404-4012	WG 260		31	6.2	114
Show		20593-3902	WG 264		82	5.3	114
Show		20457-3736	HJ 5216		22	15.6	115
Show		20552-4104	UC 4326		242	36.5	122
Show		20502-3719	BRT1813		296	5.4	123
Show		20392-3945	UC 4244		129	43.9	124
Show		20570-3748	NSN 489		348	2.7	127
Show		20593-3820	B 2894		311	11.4	128
Show		20576-3745	B 2488		226	2.4	134
Show		20579-3743	HJ 5236		308	5.9	137
Show		20542-3714	BRT1815		207	4.2	138
Show		20584-3735	SKF1251		217	148.1	148
Show		20539-3658	B 507		215	0.5	151
Show		20552-4139	UC 4327		96	77.2	152
Show		20400-4109	UC 4250		315	28.8	156
Show		20401-3920	SEE 422		242	20.9	156
Show		20506-3645	B 2893		297	9.7	157
Show		20536-4153	BRT1115		339	3.5	159
Show		20448-3653	UC 4278		250	22.0	160
Show		21029-3839	KPP4221	CD	265	4.5	160
Show		20360-3934	UC 4228		177	45.9	160
Show		21030-3838	UC 4365		207	99.7	161
Show		20573-4136	UC 4343		265	17.3	161
Show		20582-3711	WIS 345		7	35.3	164
Show		20478-3636	LWR 17		20	9.0	167
Show		21007-4111	I 1049		346	1.3	167
Show		20595-3718	JSP 820		247	1.4	169
Show		20361-3814	HJ 5208		277	9.2	172
Show		20353-4017	SEE 421	AB	7	14.7	175
Show		20353-4017	KPP4396	AC	51	4.2	175

WDS 20497-3921 : COMPONENTS

	A
B	pa=118.3° sep=1.02"

20497-3921 A

Componente originario normalizzato	AB	Name	HD 198143	Coord arcsec 2000	204942.27-392049.2	Mag	9.52
Spectral class	G5IV (yellow)	PmRA	-35.00	PmDE	-6.0	Tycho2	7963-01464-1
HD	198143

Tycho2

Tycho2	7963-01464-1	Pflag	P	RAmdeg	312.42611717	DEmdeg	-39.34700699
PmRA	-34.6	PmDE	-5.7	E RAmdeg	14	E DEmdeg	17
E pmRA	2.2	E pmDE	2.2	EpRAm	1991.21	EpDEm	1990.70
Num	6	Q RAmdeg	0.7	Q DEmdeg	0.9	Q pmRA	0.7
Q pmDE	1.0	BTmag	10.673	E BTmag	0.037	VTmag	9.515
E VTmag	0.021	Prox	12	TYC	T	HIP
CCDM		RAdeg	312.42614722	DEdeg	-39.34696417	EpRA 1990	1.85
EpDE 1990	1.60	E RAdeg	14.3	E DEdeg	17.4	Posflg	D
Corr	-0.2

CCDM

Ccdm	20497-3921	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.47	DDEs	10.7
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.2	Sp	G5	PmNote
PmRA		PmDE		Dm number	-3913980	Cat1	CD
Name2		Cat2		HD	198143	M HD
ADS BDS		M ADS BDS		N IDS		IDS	20432S3943A
HIC

20497-3921 B

Componente originario normalizzato	AB		Coord arcsec 2000	204942.35-392049.7		Mag	11.11		PmRA	-35.00
PmDE	-6.0		Tycho2	7963-01464-2		Calc delta mag	1.59		Calc coord	yes

Tycho2

Tycho2	7963-01464-2	Pflag	P	RAmdeg	312.42611717	DEmdeg	-39.34700699
PmRA	-34.6	PmDE	-5.7	E RAmdeg	14	E DEmdeg	17
E pmRA	2.2	E pmDE	2.2	EpRAm	1991.21	EpDEm	1990.70
Num	6	Q RAmdeg	0.7	Q DEmdeg	0.9	Q pmRA	0.7
Q pmDE	1.0	BTmag	11.736	E BTmag	0.076	VTmag	11.109
E VTmag	0.076	Prox	12	TYC		HIP
CCDM		RAdeg	312.42652806	DEdeg	-39.34712111	EpRA 1990	1.85
EpDE 1990	1.59	E RAdeg	44.6	E DEdeg	54.8	Posflg	D
Corr	-0.2

CCDM

Ccdm	20497-3921	RComp		Comp	B	Note1
Note2		Discov num	B 502	DRAs		DDEs
R dRAs		Year	1927	Theta	115	Rho	1.4
Obs	2	Vmag	11.8	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20432S3943B
HIC