21121+3539 SEI 1441

21^h 12^m 03.47^s +35° 38' 37.9" P.A. 158.00 sep 13.9 mag 10.44,11.90

Coord 2000	21121+3539	Discov num	SEI1441	Comp		Coord arcsec 2000	21 12 03.47 +35 38 37.9
Date first	1896	Date last	2015	Obs	10
Pa first	153	Pa last	157.8	P.A. Now (θ)	157.8°
Sep first	13.9	Sep last	13.924	Sep. Now (ρ)	13.924"
Mag pri	10.44	Mag sec	11.90	delta mag (ΔM)	1.46	Spectral class
Pri motion ra	-002	Sec motion ra	-007
Pri motion dec	-002	Sec motion dec	-006
Notes

rPM=0.695

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2714-00323-1

Gaia DR2

1867676321196643200

WDS 21121+3539 SEI 1441 : 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
21121+3539	SEI1441		1983	2	157	13.9	10.44	11.90			211203.47+353837.9
21121+3539	SEI1441		2002	3	158	13.9	10.44	11.90			211203.47+353837.9
21121+3539	SEI1441		2012	4	158	14.0	10.44	11.90			211203.47+353837.9
21121+3539	SEI1441		2015	7	158	13.9	10.44	11.90			211203.47+353837.9

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WDS 21121+3539 SEI 1441 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21121+3539 SEI 1441 : MEASURES

No records found.

WDS 21121+3539 : VIRTUAL EYEPIECE

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

WDS 21121+3539 : ALADIN DSS IMAGE @ 21^h 12^m 03.47^s +35° 38' 37.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21121+3539 SEI 1441 : 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		21121+3539	SEI1441		158	13.9	1
Show		21120+3541	TDT2818		115	0.7	3
Show		21125+3528	GRV 435		206	61.8	13
Show		21121+3554	SEI1442		86	12.8	16
Show		21106+3548	GRV 433		345	73.4	20
Show		21136+3547	SEI1454		155	19.1	21
Show		21134+3553	SLE 372		59	11.1	23
Show		21100+3529	TDT2798		51	0.8	27
Show		21132+3602	TDT2834		174	0.5	28
Show		21107+3515	TDS1120		244	2.0	29
Show		21128+3608	TDT2826		116	0.5	31
Show		21096+3548	SEI1420		122	6.4	31
Show		21137+3602	SEI1455		139	3.2	32
Show		21105+3606	SEI1428		144	19.1	34
Show		21147+3529	TDT2852		79	1.4	34
Show		21139+3513	TDT2841		302	1.9	34
Show		21099+3517	TDT2797		143	2.2	34
Show		21129+3612	SEI1448		208	25.2	35
Show		21149+3546	SEI1467		129	4.9	35
Show		21091+3531	POP 26		242	4.8	37
Show		21147+3558	SEI1466		127	16.6	39
Show		21152+3544	SEI1475		266	5.5	40
Show		21108+3502	TDT2808		215	2.8	40
Show		21107+3616	SEI1431		149	20.6	41
Show		21111+3618	HO 283	Aa,Ab	178	0.8	42
Show		21111+3618	HO 283	AB	211	20.8	42
Show		21117+3621	TOB 213	BC	171	16.5	42
Show		21140+3504	ES 2258		178	3.0	42
Show		21129+3619	SEI1450		169	17.8	42
Show		21117+3621	SEI1439	AB	195	26.6	42
Show		21110+3619	SEI1435		187	30.1	43
Show		21087+3551	SEI1414	AB	34	10.4	43
Show		21087+3551	TOB 211	AC	355	23.5	43
Show		21098+3504	ES 2257	AB	268	15.2	45
Show		21098+3504	ES 2257	BC	260	5.5	45
Show		21114+3623	SEI1437		165	24.4	45
Show		21097+3504	TDT2795		252	2.5	46
Show		21095+3506	TDT2791		252	2.0	46
Show		21123+3453	SLE 370	AB	266	9.8	46
Show		21123+3453	SLE 370	AC	199	16.2	46
Show		21138+3500	J 3128	AB	51	5.0	46
Show		21138+3500	J 3128	AC	93	15.0	46
Show		21094+3506	TDT2790		118	0.4	47
Show		21156+3600	SEI1479	AB	76	26.9	48
Show		21156+3600	SEI1479	AC	271	27.4	48
Show		21101+3620	SEI1424		61	26.3	48
Show		21149+3612	SEI1469	AB	132	25.8	49
Show		21149+3612	SEI1470	AC	156	23.3	49
Show		21149+3612	ABH 142	AD	83	36.3	49
Show		21149+3612	ABH 142	AE	134	75.5	49
Show		21149+3612	ABH 142	AF	147	74.4	49

WDS 21121+3539 : COMPONENTS

	A
B	pa=161.7° sep=13.58"

21121+3539 A

Componente originario normalizzato	AB		Coord arcsec 2000	211203.47+353837.9		Mag	10.44		PmRA	-2.00
PmDE	-2.0		Tycho2	2714-00323-1

Tycho2

Tycho2	2714-00323-1	Pflag		RAmdeg	318.01449177	DEmdeg	35.64386946
PmRA	5.1	PmDE	-0.3	E RAmdeg	33	E DEmdeg	29
E pmRA	2.1	E pmDE	2.1	EpRAm	1988.28	EpDEm	1989.15
Num	5	Q RAmdeg	1.5	Q DEmdeg	1.1	Q pmRA	1.5
Q pmDE	1.1	BTmag	11.741	E BTmag	0.065	VTmag	10.437
E VTmag	0.038	Prox	429	TYC		HIP
CCDM		RAdeg	318.01447917	DEdeg	35.64386944	EpRA 1990	1.65
EpDE 1990	1.77	E RAdeg	34.1	E DEdeg	29.9	Posflg
Corr	0.2

CCDM

Ccdm	21121+3539	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.51	DDEs	-21.8
R dRAs	65	Year		Theta		Rho
Obs	2	Vmag	9.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS	21080N3514A
HIC

21121+3539 B

Componente originario normalizzato	AB		Coord arcsec 2000	211203.82+353825.0		Mag	11.9		PmRA	-7.00
PmDE	-6.0		Calc delta mag	1.46		Calc coord	yes

CCDM

Ccdm	21121+3539	RComp		Comp	B	Note1
Note2		Discov num	SEI1441	DRAs	-2.06	DDEs	-34.5
R dRAs	65	Year	1896	Theta	153	Rho	13.9
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	21080N3514B
HIC