20526+3756 SEI 1289

20^h 52^m 37.94^s +37° 55' 41.3" P.A. 240.00 sep 25.3 mag 9.40,12.40 Sp B8 dist. 1265.82 pc (4129.1 l.y.)

Coord 2000	20526+3756	Discov num	SEI1289	Comp		Coord arcsec 2000	20 52 37.94 +37 55 41.3
Date first	1896	Date last	2015	Obs	8
Pa first	240	Pa last	240.1	P.A. Now (θ)	240.1°
Sep first	23.9	Sep last	25.255	Sep. Now (ρ)	25.255"
Mag pri	9.40	Mag sec	12.40	delta mag (ΔM)	3	Spectral class	B8 (blue-white)
Pri motion ra	+001	Sec motion ra	-008
Pri motion dec	-002	Sec motion dec	-012
Notes

rPM=0.933

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cygnus		HIP	103044		Tycho2	3167-00597-1		Gaia DR2	1872463358612484352
BD	BD+37 4086		Distance	1265.82		Distance ly	4129.1

WDS 20526+3756 SEI 1289 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20526+3756	SEI1289		1998	2	240	25.0	9.40	12.40	B8	D	205237.94+375541.3
20526+3756	SEI1289		2002	3	240	25.1	9.40	12.40	B8	D	205237.94+375541.3
20526+3756	SEI1289		2010	4	240	25.2	9.40	12.40	B8		205237.94+375541.3
20526+3756	SEI1289		2015	5	240	25.3	9.40	12.40	B8		205237.94+375541.3

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WDS 20526+3756 SEI 1289 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20526+3756 SEI 1289 : MEASURES

No records found.

WDS 20526+3756 : VIRTUAL EYEPIECE

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WDS 20526+3756 : ALADIN DSS IMAGE @ 20^h 52^m 37.94^s +37° 55' 41.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20526+3756 SEI 1289 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20526+3756	SEI1289		240	25.3
Show		20525+3759	ES 2516		216	6.3	5
Show		20529+3752	TDT2600		43	0.5	5
Show		20521+3758	RAO 442		81	2.6	7
Show		20540+3751	TDT2614		350	0.6	17
Show		20533+3740	SEI1294		26	23.1	19
Show		20507+3807	SEI1275		196	22.2	26
Show		20518+3820	ES 2123	AB	102	5.2	27
Show		20518+3820	ES 2123	AC	327	37.4	27
Show		20533+3731	TDT2606		65	4.4	27
Show		20549+3803	TDT2626	Aa,Ab	20	0.7	27
Show		20549+3803	SEI1309	AB	120	6.5	27
Show		20527+3728	SEI1288		259	24.2	28
Show		20506+3740	SKF1925		170	13.8	29
Show		20552+3755	SEI1312		285	8.2	31
Show		20524+3724	SEI1287		353	6.7	33
Show		20538+3723	SEI1299	AB	356	9.0	36
Show		20538+3723	SEI1301	AC	290	26.3	36
Show		20556+3809	COU2222	Aa,Ab	109	0.7	38
Show		20556+3809	SEI1317	AB	171	22.7	38
Show		20515+3717	SEI1282		270	27.4	41
Show		20510+3717	SEI1277		32	8.1	44
Show		20511+3837	SEI1281		102	8.6	46
Show		20488+3754	TDT2557		237	0.7	46
Show		20561+3731	SEI1322		165	1.5	49
Show		20547+3714	TDT2625		255	0.5	49
Show		20498+3833	HJ 1582	AB	45	17.4	51
Show		20498+3833	HJ 1582	AC	327	28.7	51
Show		20501+3714	SEI1268	AB	123	27.3	52
Show		20501+3714	CLL 15	AC	20	48.5	52
Show		20565+3731	TDT2648		234	0.7	53
Show		20546+3709	SEI1307		307	3.7	53
Show		20549+3709	COU2295		180	0.4	54
Show		20569+3818	KPP1144		248	8.9	55
Show		20530+3851	ALI 954		61	8.9	56
Show		20544+3704	SEI1305		148	23.0	56
Show		20538+3702	SEI1300		120	1.8	57
Show		20547+3704	STT 419		24	1.7	57
Show		20554+3708	SEI1314		178	18.4	59
Show		20521+3657	SEI1285		301	27.6	60
Show		20476+3812	SEI1250		18	17.3	61
Show		20526+3655	A 1435		6	0.5	61
Show		20544+3658	TDT2623		36	1.0	62
Show		20509+3855	SEI1278		135	25.5	63
Show		20512+3650	SEI1280		5	3.8	67
Show		20470+3806	TDT2534		138	0.6	68
Show		20546+3900	SEI1308		93	6.0	69
Show		20472+3730	J 1210		247	3.9	70
Show		20575+3717	DAM 221		59	5.9	70
Show		20556+3856	MLB 785		5	6.4	70
Show		20570+3842	SEI1327		89	4.6	70

WDS 20526+3756 : COMPONENTS

	A
B	pa=233.9° sep=21.37"

20526+3756 A

Componente originario normalizzato	AB	Coord arcsec 2000	205237.94+375541.3	Mag	9.4	Spectral class	B8 (blue-white)
PmRA	1.00	PmDE	-2.0	HIP	103044	Tycho2	3167-00597-1
BD	BD+37 4086

Tycho2

Tycho2	3167-00597-1	Pflag		RAmdeg	313.15810286	DEmdeg	37.92813533
PmRA	-0.6	PmDE	0.0	E RAmdeg	11	E DEmdeg	9
E pmRA	1.0	E pmDE	1.0	EpRAm	1989.71	EpDEm	1990.47
Num	10	Q RAmdeg	1.0	Q DEmdeg	1.2	Q pmRA	1.1
Q pmDE	1.2	BTmag	9.677	E BTmag	0.020	VTmag	9.408
E VTmag	0.018	Prox	999	TYC	T	HIP	103044
CCDM		RAdeg	313.15810556	DEdeg	37.92813583	EpRA 1990	1.50
EpDE 1990	1.71	E RAdeg	10.6	E DEdeg	9.2	Posflg
Corr	0.1

Hipparcos

Catalog	H	HIP	103044	Proxy		RAhms	20 52 37.94
DEdms	+37 55 41.3	Vmag	9.42	VarFlag		R Vmag	H
RAdeg	313.158	DEdeg	37.9281	AstroRef		Plx	0.89
CCDM	20526+3756	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual	S	M HIP
Theta		Rho		HD		BD	BD+37 4086
CD		CP		Dm number	+37 4086	VIred	0.24
SpType	B8	R SpType		Coord arcsec 2000	205237.94+375541.3

Hipparcos 2

HIP	103044	Sn	5	So	0	Nc	1
RArad	5.465639969	DErad	0.6619708408	Plx	0.79	PmRA	2.66
PmDE	-0.02	E RArad	0.6	E DErad	0.67	E Plx	0.87
E pmRA	0.67	E pmDE	0.81	Hpmag	9.4913	E Hpmag	0.0023
SHp	0.026	VA	0	BV	0.221	E BV	0.026
VI	0.24

CCDM

Ccdm	20526+3756	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.95	DDEs	-19.9
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.4	Sp		PmNote	*
PmRA	3	PmDE	-18	Dm number	+37 4086	Cat1	BD
Name2	+37 2043	Cat2	AGK2/3	HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20488N3733A
HIC	103044

20526+3756 B

Componente originario normalizzato	AB		Coord arcsec 2000	205236.48+375528.7		Mag	12.4		PmRA	-8.00
PmDE	-12.0		Calc delta mag	3		Calc coord	yes

CCDM

Ccdm	20526+3756	RComp		Comp	B	Note1
Note2		Discov num	SEI1289	DRAs		DDEs
R dRAs		Year	1896	Theta	240	Rho	23.7
Obs	1	Vmag	12.4	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20488N3733B
HIC