20434+4001 BRT 2272

20^h 43^m 24.33^s +40° 00' 22.3" P.A. 285.00 sep 5.1 mag 11.97,12.83

Coord 2000	20434+4001	Discov num	BRT2272	Comp		Coord arcsec 2000	20 43 24.33 +40 00 22.3
Date first	1892	Date last	2016	Obs	10
Pa first	287	Pa last	285	P.A. Now (θ)	285°
Sep first	4.1	Sep last	5.07	Sep. Now (ρ)	5.07"
Mag pri	11.97	Mag sec	12.83	delta mag (ΔM)	0.86	Spectral class
Pri motion ra	+005	Sec motion ra
Pri motion dec	-005	Sec motion dec
Notes	B (Blue magnitudes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3170-00719-1

Gaia DR2

2063768417514423552

WDS 20434+4001 BRT 2272 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Brt1926a	Pa -	Barton, S.G.	1926AJ.....36..155B
Brt1926a		AJ 36, 155, 1926 (BRT 1 - BRT 62)
Brt1926b	Pa j	Barton, S.G.	1926AJ.....37...57B
Brt1926b		AJ 37, 57, 1926 (BRT 63 - BRT 116)
Brt1928	Pa -	Barton, S.G.	1928AJ.....38..168B
Brt1928		AJ 38, 168, 1928 (BRT 117 - BRT 230)
Brt1929a	Pa -	Barton, S.G.	1929AN....235..425B
Brt1929a		AN 235, 425, 1929 (BRT 294 - BRT 322)
Brt1929b	Pa -	Barton, S.G.	1929AJ.....39...93B
Brt1929b		AJ 39, 93, 1929 (BRT 231 - BRT 293)
Brt1929c	Ma j	Barton, S.G.	1929AJ.....39..120B
Brt1929c		AJ 39, 120, 1929
Brt1930	Pa -	Barton, S.G.	1930AJ.....40..181B
Brt1930		AJ 40, 181, 1930 (BRT 323 - BRT 348)
Brt1931	Pa -	Barton, S.G. (BRT 349 - BRT 562)	1931AJ.....41...35B
Brt1931		AJ 41, 35, 1931 (no measures for BRT 529 - BRT 562)
Brt1932a	Pa -	Barton, S.G.	1932AJ.....42...93B
Brt1932a		AJ 42, 93, 1932 (BRT 604 - BRT 636)
Brt1932b	Ma -	Barton, S.G.	1932PFAO....5a...1B
Brt1932b	+Pa	Pub. Univ. Penn. 5, Pt.1, Sec.2, 1932 (BRT 563 - BRT 603, BRT1928, etc.)
Brt1932C	Ma -	Barton, S.G.	1932QB821.A43......
Brt1932C		cited in ADS (Aitken Double Star Cat.), 1932
Brt1933	Pa -	Barton, S.G.	1933AN....250...49B
Brt1933		AN 250, 49, 1933
Brt1933		(BRT 637 - BRT1134; very approximate dates added for pairs listed with only
Brt1933		secondary magnitudes and no astrometry)
Brt1934	Pa -	Barton, S.G.	1934AJ.....43..119B
Brt1934	+Ma	AJ 43, 119, 1934
Brt1935a	Pa -	Barton, S.G.	1935AJ.....44..105B
Brt1935a	+Ma	AJ 44, 105, 1935
Brt1935b	Pa -	Barton, S.G.	1935AN....256..357B
Brt1935b		AN 256, 357, 1935
Brt1936a	Ma -	Barton, S.G.	1936AJ.....45...33B
Brt1936a	+Pa	AJ 45, 33, 1936
Brt1936b	Pa -	Barton, S.G.	1936AJ.....45...99B
Brt1936b	+Ma	AJ 45, 99, 1936
Brt1937a	Pa -	Barton, S.G.	1937AN....263..347B
Brt1937a		AN 263, 347, 1937
Brt1937b	Pa -	Barton, S.G.	1937AN....263..383B
Brt1937b		AN 263, 383, 1937
Brt1938	Ma -	Barton, S.G.	1938AJ.....47..133B
Brt1938	+Pa	AJ 47, 133, 1938
Brt1939a	Ma -	Barton, S.G.	1939PFAO....5b...1B
Brt1939a	+Pa	Pub. Univ. Penn. 5, Pt.2, Sec.2, 1939
Brt1939b	Pa -	Barton, S.G.	1939AJ.....48..145B
Brt1939b	+Ma	AJ 48, 145, 1939
Brt1941	Pa -	Barton, S.G.	1941PASP...55..339B
Brt1941		PASP 55, 339, 1941
Brt1942	Pa -	Barton, S.G.	1942AJ.....50...11B
Brt1942		AJ 50, 11, 1942
Brt1947	Ma -	Barton, S.G.	1947AJ.....52..178B
Brt1947	+Pa	AJ 52, 178, 1947
Brt1949	Ma -	Barton, S.G.	1949PFAO....7a...1B
Brt1949		Pub. Univ. Penn. 7, Pt.1, Sec.1, 1949
Brt1951	Pa -	Barton, S.G.	1951AJ.....55..218B
Brt1951		AJ 55, 218, 1951
Brt1957	Ma -	Barton, S.G.	1957QB4.P5v7ps3....
Brt1957		Pub. Univ. Penn. 7, Pt.3, 15, 1957
Brt9999	Ma -	Barton, S.G.	...................
Brt9999	+Pa	Unpublished, manuscript or reference not found.
Brt2002A	Ma -	Barton, S.G.	2002yCat.1275....0D
Brt2002A	+Pa	cited in CCDM

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20434+4001	BRT2272		1981	2	284	4.7	11.97	12.83		B	204324.33+400022.3
20434+4001	BRT2272		2002	3	285	5.1	11.97	12.83		B	204324.33+400022.3
20434+4001	BRT2272		2015	5	285	5.1	11.97	12.83		B	204324.33+400022.3
20434+4001	BRT2272		2016	10	285	5.1	11.97	12.83		B	204324.33+400022.3

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

WDS 20434+4001 BRT 2272 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20434+4001 BRT 2272 : MEASURES

No records found.

WDS 20434+4001 : 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 20434+4001 : ALADIN DSS IMAGE @ 20^h 43^m 24.33^s +40° 00' 22.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20434+4001 BRT 2272 : 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		20434+4001	BRT2272		285	5.1
Show		20426+4013	TDT2488		138	0.5	16
Show		20427+3947	TDT2491		275	1.4	16
Show		20434+3943	TDT2497		317	0.5	18
Show		20419+3956	SEI1221		254	2.0	19
Show		20419+3953	SEI1222		77	25.4	19
Show		20420+4015	A 1433		24	0.8	22
Show		20453+4010	COU2293		201	1.1	23
Show		20436+4024	DAM1256		106	9.6	24
Show		20416+3950	COU2290		43	0.5	24
Show		20454+4011	TDT2518		203	0.7	26
Show		20432+4026	COU2421		110	0.3	26
Show		20456+4014	TDT2519		347	1.3	29
Show		20444+4027	TDT2510		157	0.9	30
Show		20440+4030	SLN 85		203	9.1	31
Show		20454+4023	OSO 133	AB	114	12.0	33
Show		20454+4023	OSO 133	AC	236	11.7	33
Show		20454+4023	OSO 133	AD	67	21.8	33
Show		20454+4023	OSO 133	AE	8	22.4	33
Show		20438+3928	SEI1230		124	25.3	34
Show		20441+3927	ES 1981		310	4.5	35
Show		20405+4010	TOB 196	BC	32	23.4	36
Show		20405+4010	SEI1214	AB	78	20.3	36
Show		20402+3953	MLB 885		72	1.7	37
Show		20429+4036	MLB 24		175	5.9	38
Show		20466+4020	ES 1982		301	3.9	41
Show		20445+3921	HJ 1572		280	15.6	42
Show		20446+4040	HJ 1573		274	9.8	42
Show		20435+3919	SEI1229		156	19.6	43
Show		20446+4041	HJ 1574		278	7.4	43
Show		20422+4041	MLB 23		41	7.6	43
Show		20395+4002	BRT2269		199	5.0	46
Show		20457+3917	SEI1241		309	7.1	52
Show		20478+3944	GRV 381		340	35.8	54
Show		20392+4017	ES 1980		60	8.3	54
Show		20481+3958	CVR 231		359	9.7	55
Show		20449+3908	SEI1236		318	27.4	56
Show		20396+4035	STT 410	AB	3	0.9	56
Show		20396+4035	STT 410	AB,C	70	68.6	56
Show		20396+4035	STT 410	AB,D	327	106.6	56
Show		20413+4051	COU2419		69	0.8	57
Show		20484+4002	J 1237	BC	355	5.6	57
Show		20484+4002	SEI1255	AB	338	24.4	58
Show		20486+4000	TOB 198		96	21.0	60
Show		20476+4038	CNT 9		292	9.0	62
Show		20387+4024	ES 1979		303	7.6	62
Show		20410+3905	MCA 62	Aa,Ab	276	0.1	62
Show		20410+3905	HJ 612	AB	9	48.9	62
Show		20379+4005	ES 1978		136	2.9	64
Show		20382+3938	MLB 778		285	8.3	64
Show		20382+4022	TDT2439		22	0.4	65

WDS 20434+4001 : COMPONENTS

	A
B	pa=289.3° sep=3.97"

20434+4001 A

Componente originario normalizzato	AB		Coord arcsec 2000	204324.33+400022.3		Mag	11.97		PmRA	5.00
PmDE	-5.0		Tycho2	3170-00719-1

Tycho2

Tycho2	3170-00719-1	Pflag		RAmdeg	310.85159882	DEmdeg	40.00605727
PmRA	6.1	PmDE	-5.5	E RAmdeg	49	E DEmdeg	46
E pmRA	1.5	E pmDE	1.5	EpRAm	1978.46	EpDEm	1978.61
Num	6	Q RAmdeg	1.0	Q DEmdeg	1.3	Q pmRA	1.1
Q pmDE	1.3	BTmag	11.969	E BTmag	0.086	VTmag	11.472
E VTmag	0.087	Prox	999	TYC		HIP
CCDM		RAdeg	310.85157944	DEdeg	40.00606833	EpRA 1990	1.60
EpDE 1990	1.66	E RAdeg	53.1	E DEdeg	50.3	Posflg
Corr	0.0

20434+4001 B

Componente originario normalizzato	AB		Coord arcsec 2000	204324.00+400023.6		Mag	12.83		Calc delta mag	0.86
Calc coord	yes