20476+3839 SEI 1249

20^h 47^m 37.02^s +38° 39' 06.1" P.A. 69.00 sep 27.8 mag 10.91,12.39

Coord 2000	20476+3839	Discov num	SEI1249	Comp		Coord arcsec 2000	20 47 37.02 +38 39 06.1
Date first	1896	Date last	2015	Obs	11
Pa first	68	Pa last	68.6	P.A. Now (θ)	68.6°
Sep first	28.3	Sep last	27.803	Sep. Now (ρ)	27.803"
Mag pri	10.91	Mag sec	12.39	delta mag (ΔM)	1.48	Spectral class
Pri motion ra	-004	Sec motion ra	-007
Pri motion dec	-010	Sec motion dec	-014
Notes

rPM=0.319

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3166-00553-1

Gaia DR2

2063401077545270272

WDS 20476+3839 SEI 1249 : 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
20476+3839	SEI1249		1998	5	69	27.9	10.91	11.90		D	204737.02+383906.1
20476+3839	SEI1249		2002	6	69	27.9	10.91	11.90		D	204737.02+383906.1
20476+3839	SEI1249		2010	7	69	27.9	10.91	12.39			204737.02+383906.1
20476+3839	SEI1249		2015	8	69	27.8	10.91	12.39			204737.02+383906.1

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WDS 20476+3839 SEI 1249 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20476+3839 SEI 1249 : MEASURES

No records found.

WDS 20476+3839 : VIRTUAL EYEPIECE

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WDS 20476+3839 : ALADIN DSS IMAGE @ 20^h 47^m 37.02^s +38° 39' 06.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20476+3839 SEI 1249 : 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		20476+3839	SEI1249		69	27.8
Show		20478+3840	SEI1251		42	15.2	3
Show		20471+3850	HJ 1575		51	14.9	14
Show		20470+3828	ES 2054		192	2.7	14
Show		20461+3824	ALI 949		313	11.9	24
Show		20459+3852	COU2294		125	0.9	25
Show		20461+3858	CRB 11		272	10.8	26
Show		20498+3833	HJ 1582	AB	45	17.4	27
Show		20498+3833	HJ 1582	AC	327	28.7	27
Show		20476+3812	SEI1250		18	17.3	28
Show		20453+3854	SEI1239		40	26.8	31
Show		20449+3839	ALI 951		49	11.1	32
Show		20450+3827	ALI 947		69	6.9	32
Show		20498+3900	MLB 983		191	3.8	33
Show		20470+3806	TDT2534		138	0.6	35
Show		20480+3917	A 1434	AB	178	0.0	39
Show		20480+3917	A 1434	AB,C	256	2.5	39
Show		20509+3855	SEI1278		135	25.5	42
Show		20511+3837	SEI1281		102	8.6	42
Show		20440+3839	COU2292		240	0.3	43
Show		20440+3838	TDT2506		23	2.9	43
Show		20449+3908	SEI1236		318	27.4	43
Show		20489+3919	TDT2558		191	1.1	43
Show		20457+3917	SEI1241		309	7.1	44
Show		20488+3754	TDT2557		237	0.7	48
Show		20507+3807	SEI1275		196	22.2	48
Show		20436+3834	BRT2232		269	5.8	49
Show		20493+3923	SEI1263	AB	98	23.6	49
Show		20490+3925	TDT2560		38	1.1	49
Show		20493+3923	ALI 952	BC	50	4.9	49
Show		20493+3923	DAM 26	BD	53	9.5	49
Show		20433+3847	GRV 371		180	65.5	51
Show		20510+3915	SEI1279	BC	189	7.3	54
Show		20510+3915	SEI1279	AB	147	12.9	54
Show		20464+3747	SEI1244		149	22.5	55
Show		20445+3921	HJ 1572		280	15.6	56
Show		20518+3820	ES 2123	AB	102	5.2	56
Show		20518+3820	ES 2123	AC	327	37.4	56
Show		20430+3850	ES 2053		223	4.5	56
Show		20519+3911	SEI1283		1	22.8	59
Show		20435+3919	SEI1229		156	19.6	62
Show		20441+3927	ES 1981		310	4.5	64
Show		20514+3927	TDT2581		146	0.8	65
Show		20530+3851	ALI 954		61	8.9	65
Show		20438+3928	SEI1230		124	25.3	66
Show		20478+3944	GRV 381		340	35.8	66
Show		20420+3827	AG 263		70	1.6	67
Show		20521+3758	RAO 442		81	2.6	67
Show		20506+3740	SKF1925		170	13.8	69
Show		20525+3759	ES 2516		216	6.3	70
Show		20468+3730	ALI 674		328	13.0	70

WDS 20476+3839 : COMPONENTS

	A
B	pa=63.4° sep=22.62"

20476+3839 A

Componente originario normalizzato	AB		Coord arcsec 2000	204737.02+383906.1		Mag	10.91		PmRA	-4.00
PmDE	-10.0		Tycho2	3166-00553-1

Tycho2

Tycho2	3166-00553-1	Pflag		RAmdeg	311.90425246	DEmdeg	38.65169355
PmRA	-3.9	PmDE	-5.8	E RAmdeg	32	E DEmdeg	29
E pmRA	2.1	E pmDE	2.1	EpRAm	1988.76	EpDEm	1989.54
Num	3	Q RAmdeg	1.2	Q DEmdeg	1.2	Q pmRA	1.2
Q pmDE	1.2	BTmag	11.150	E BTmag	0.046	VTmag	10.913
E VTmag	0.056	Prox	999	TYC	T	HIP
CCDM		RAdeg	311.90426333	DEdeg	38.65170639	EpRA 1990	1.68
EpDE 1990	1.76	E RAdeg	32.5	E DEdeg	29.1	Posflg
Corr	0.1

CCDM

Ccdm	20476+3839	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.01	DDEs	5.6
R dRAs	65	Year		Theta		Rho
Obs	2	Vmag	10.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20438N3817A
HIC

20476+3839 B

Componente originario normalizzato	AB		Coord arcsec 2000	204738.75+383916.2		Mag	12.39		PmRA	-7.00
PmDE	-14.0		Calc delta mag	1.48		Calc coord	yes

CCDM

Ccdm	20476+3839	RComp		Comp	B	Note1
Note2		Discov num	SEI1249	DRAs	3.23	DDEs	15.7
R dRAs	65	Year	1896	Theta	068	Rho	28.4
Obs	1	Vmag	11.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20438N3817B
HIC