20121+3603 SEI 990

20^h 12^m 03.70^s +36° 02' 31.0" P.A. 296.00 sep 26.7 mag 10.33,10.82 Sp F8III

Coord 2000	20121+3603	Discov num	SEI 990	Comp		Coord arcsec 2000	20 12 03.70 +36 02 31.0
Date first	1896	Date last	2015	Obs	15
Pa first	297	Pa last	295.8	P.A. Now (θ)	295.8°
Sep first	26.8	Sep last	26.693	Sep. Now (ρ)	26.693"
Mag pri	10.33	Mag sec	10.82	delta mag (ΔM)	0.49	Spectral class	F8III (yellow-white)
Pri motion ra	+015	Sec motion ra	+014
Pri motion dec	-018	Sec motion dec	-018
Notes

rPM=0.043 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2683-02144-1

Gaia DR2

2058974753001532672

WDS 20121+3603 SEI 990 : 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
20121+3603	SEI 990		2002	8	295	26.7	10.33	10.82		D	201203.70+360231.0
20121+3603	SEI 990		2010	10	296	26.6	10.33	10.82	F8III		201203.70+360231.0
20121+3603	SEI 990		2015	11	296	26.7	10.33	10.82	F8III		201203.70+360231.0

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WDS 20121+3603 SEI 990 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20121+3603 SEI 990 : MEASURES

No records found.

WDS 20121+3603 : VIRTUAL EYEPIECE

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

WDS 20121+3603 : ALADIN DSS IMAGE @ 20^h 12^m 03.70^s +36° 02' 31.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20121+3603 SEI 990 : 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		20121+3603	SEI 990		296	26.7
Show		20122+3603	SEI 994		250	27.1	2
Show		20122+3600	SEI 991		296	20.1	3
Show		20117+3600	SEI 978		151	7.6	5
Show		20115+3604	SEI 972		147	23.9	8
Show		20119+3612	BLL 46	AB	109	53.2	10
Show		20119+3612	BKO 101	AC	242	41.1	10
Show		20125+3552	SEI1001		188	29.2	12
Show		20119+3551	SEI 983	AB	89	3.5	13
Show		20119+3551	SEI 983	AC	243	8.1	13
Show		20119+3551	BKO 102	AD	277	14.7	13
Show		20120+3614	TOB 176		197	18.8	13
Show		20131+3602	SEI1014		351	27.7	13
Show		20119+3550	SEI 985	AB	17	16.6	13
Show		20119+3550	BKO 103	AC	92	8.1	13
Show		20126+3614	SEI1003		282	23.4	13
Show		20110+3559	SEI 961		20	13.9	14
Show		20114+3552	HJ 1490		355	8.6	14
Show		20124+3549	TOB 177		221	20.1	15
Show		20113+3551	BKO 100		91	6.3	15
Show		20122+3548	SEI 992		77	26.4	15
Show		20113+3550	BU 430	AB	23	1.2	16
Show		20113+3550	BU 430	AC	173	7.2	16
Show		20113+3550	HJ 1489	AD	51	17.1	16
Show		20126+3618	SEI1004	AB	108	25.8	17
Show		20126+3618	TOB 178	AC	288	27.8	17
Show		20132+3611	NSN 731		324	25.3	17
Show		20109+3612	SEI 959		71	21.6	18
Show		20135+3607	SEI1019		115	23.9	18
Show		20124+3545	BKO 104	AB	72	9.4	18
Show		20124+3545	BKO 104	AC	285	9.3	18
Show		20122+3621	SEI 996	AB		29.5	19
Show		20122+3621	STJ 71	AC	105	1.1	19
Show		20115+3545	TDT2066		129	1.0	20
Show		20108+3552	SEI 954		314	4.8	20
Show		20116+3621	SEI 976		3	8.2	20
Show		20111+3619	RAO 428		292	1.0	21
Show		20136+3553	SEI1021	BC	52	3.3	21
Show		20136+3553	SEI1021	AB	248	13.4	21
Show		20136+3553	SEI1021	AD	121	6.9	21
Show		20136+3553	SEI1021	AC	253	10.3	21
Show		20135+3551	SEI1018		170	22.3	22
Show		20105+3614	SEI 947		292	15.0	23
Show		20123+3540	FYM 582		267	4.9	23
Show		20137+3551	TDT2105		168	0.6	24
Show		20118+3540	SEI 979		350	6.3	24
Show		20105+3550	SEI 944		90	17.2	24
Show		20101+3602	SEI 938		22	5.4	25
Show		20115+3539	SEI 968		127	5.6	25
Show		20111+3626	ALI 414		215	11.6	26
Show		20101+3617	SEI 939	AB	217	26.3	28

WDS 20121+3603 : COMPONENTS

	A
B	pa=300.9° sep=22.64"

20121+3603 A

Componente originario normalizzato	AB		Coord arcsec 2000	201203.70+360231.0		Mag	10.33		Spectral class	F8III (yellow-white)
PmRA	15.00		PmDE	-18.0		Tycho2	2683-02144-1

Tycho2

Tycho2	2683-02144-1	Pflag		RAmdeg	303.01540652	DEmdeg	36.04194794
PmRA	14.3	PmDE	-13.8	E RAmdeg	22	E DEmdeg	22
E pmRA	1.5	E pmDE	1.6	EpRAm	1987.06	EpDEm	1987.51
Num	6	Q RAmdeg	0.9	Q DEmdeg	1.0	Q pmRA	0.9
Q pmDE	1.0	BTmag	10.813	E BTmag	0.041	VTmag	10.330
E VTmag	0.038	Prox	266	TYC	T	HIP
CCDM		RAdeg	303.01536194	DEdeg	36.04198111	EpRA 1990	1.55
EpDE 1990	1.62	E RAdeg	25.6	E DEdeg	25.3	Posflg
Corr	0.0

CCDM

Ccdm	20121+3603	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.29	DDEs	-28.9
R dRAs	65	Year		Theta		Rho
Obs	2	Vmag	9.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20083N3545A
HIC

20121+3603 B

Componente originario normalizzato	AB		Coord arcsec 2000	201202.10+360242.6		Mag	10.82		PmRA	14.00
PmDE	-18.0		Tycho2	2683-01750-1		Calc delta mag	0.49		Calc coord	yes

Tycho2

Tycho2	2683-01750-1	Pflag		RAmdeg	303.00716737	DEmdeg	36.04516288
PmRA	14.1	PmDE	-14.9	E RAmdeg	29	E DEmdeg	29
E pmRA	2.2	E pmDE	2.2	EpRAm	1985.46	EpDEm	1985.61
Num	5	Q RAmdeg	0.9	Q DEmdeg	0.7	Q pmRA	0.9
Q pmDE	0.7	BTmag	11.457	E BTmag	0.065	VTmag	10.824
E VTmag	0.058	Prox	266	TYC	T	HIP
CCDM		RAdeg	303.00712583	DEdeg	36.04520167	EpRA 1990	1.56
EpDE 1990	1.62	E RAdeg	39.5	E DEdeg	38.8	Posflg
Corr	0.0

CCDM

Ccdm	20121+3603	RComp		Comp	B	Note1
Note2		Discov num	SEI 990	DRAs	-4.28	DDEs	-17.5
R dRAs	65	Year	1896	Theta	296	Rho	26.7
Obs	1	Vmag	9.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	20083N3545B
HIC