You're not logged.

Login

Preset columns are boring you? Create your own custom set!
Register here!

Search

Actions

Advanced Search
Go to Simbad
New report
New measure
Login

Computed Lists

Populars
Latest Populars
Doubles in session

Current system

21395+4144
STT 447 AE

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.

21395+4144 STT 447 AE

21^h 39^m 28.71^s +41° 43' 36.0" P.A. 43.00 sep 29.1 mag 7.67,8.48 Sp K0III

Coord 2000	21395+4144		Discov num	STT 447		Comp	AE		Coord arcsec 2000	21 39 28.71 +41 43 36.0
Date first	1783		Date last	2019		Obs	37
Pa first	49		Pa last	42.8		P.A. Now (θ)	42.8°
Sep first	26.0		Sep last	29.1		Sep. Now (ρ)	29.1"
Mag pri	7.67		Mag sec	8.48		delta mag (ΔM)	0.81		Spectral class	K0III (yellow-orange)
Pri motion ra	+008		Sec motion ra	+011
Pri motion dec	-003		Sec motion dec	-003
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.263 (< 0.3, Physical double)

This double is not physical.

21395+4144 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		51153	21 39 29 +41 43 36	BU 449 AB	2015	7	14	6.0	7.67	12.60	4.93
Show	HD 206224	51153	21 39 29 +41 43 36	STT 447 AC	2017	27	176	14.0	7.67	11.20	3.53
Show		51153	21 39 29 +41 43 36	BU 449 AD	2015	14	248	18.9	7.67	13.10	5.43
Show		51153	21 39 29 +41 43 36	STT 447 AE	2019	37	43	29.1	7.67	8.48	0.81		<===
Show		51153	21 39 29 +41 43 36	ABH 148 AG	2015	9	337	33.8	7.67	14.60	6.93
Show		51153	21 39 29 +41 43 36	ABH 148 AH	2015	9	263	74.4	7.67	13.79	6.12
Show		51153	21 39 29 +41 43 36	ABH 148 AI	2015	12	271	92.9	7.67	11.65	3.98
Show		51153	21 39 29 +41 43 36	ABH 148 AJ	2015	9	95	71.2	7.67	13.84	6.17
Show		51153	21 39 29 +41 43 36	ABH 148 AK	2015	10	49	74.7	7.67	15.60	7.93
Show		51155	21 39 31 +41 43 56	FOX 262 EF	2015	13	46	41.7	8.48	11.56	3.08

11-fold system
11 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cygnus		SAO	51153		Tycho2	3191-00346-1		Gaia DR2	1966523657783024640
HD	206224