You're not logged.

Login

Keep tracks of you favourite doubles.
Register here

Search

Actions

Advanced Search
Go to Simbad
New report
New measure
Login

Computed Lists

Populars
Latest Populars
Doubles in session

Current system

20114+3135
SEI 963

Selections

Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20114+3135 SEI 963

20^h 11^m 23.63^s +31° 35' 03.8" P.A. 142.00 sep 15.2 mag 11.56,11.64 Sp F2

Coord 2000	20114+3135		Discov num	SEI 963		Comp			Coord arcsec 2000	20 11 23.63 +31 35 03.8
Date first	1893		Date last	2015		Obs	12
Pa first	145		Pa last	142		P.A. Now (θ)	142°
Sep first	16.3		Sep last	15.2		Sep. Now (ρ)	15.2"
Mag pri	11.56		Mag sec	11.64		delta mag (ΔM)	0.08		Spectral class	F2 (yellow-white)
Pri motion ra	-001		Sec motion ra	-002
Pri motion dec	-009		Sec motion dec	-005
Notes

rPM=0.455

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	141.9		Precise sep	15.179		Constellation	Cygnus		SAO	69569
Tycho2	2671-01094-1		Gaia DR2	2054022861840013312

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20114+3135	SEI 963		1998	5	142	15.3	11.56	11.64	F2	D	201123.63+313503.8
20114+3135	SEI 963		2002	6	142	15.2	11.56	11.64	F2	D	201123.63+313503.8
20114+3135	SEI 963		2010	7	142	15.3	11.56	11.64	F2		201123.63+313503.8
20114+3135	SEI 963		2015	8	142	15.2	11.56	11.64	F2		201123.63+313503.8

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