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20092+3243
TOB 171

Selections

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

20092+3243 TOB 171

20^h 09^m 10.09^s +32° 43' 40.2" P.A. 117.00 sep 19.1 mag 11.30,13.30

Coord 2000	20092+3243		Discov num	TOB 171		Comp			Coord arcsec 2000	20 09 10.09 +32 43 40.2
Date first	1984		Date last	2016		Obs	10
Pa first	116		Pa last	117		P.A. Now (θ)	117°
Sep first	19.3		Sep last	19.1		Sep. Now (ρ)	19.1"
Mag pri	11.30		Mag sec	13.30		delta mag (ΔM)	2		Spectral class
Pri motion ra	-001		Sec motion ra	+010
Pri motion dec	-008		Sec motion dec	-012
Notes

rPM=0.749

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	117.1		Precise sep	19.1		Constellation	Cygnus		Tycho2	2675-00479-1
Gaia DR2	2054907453309126784

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20092+3243	TOB 171		2000	2	117	19.4	11.30	13.30		D	200910.09+324340.2
20092+3243	TOB 171		2002	3	117	19.5	11.30	13.30		D	200910.09+324340.2
20092+3243	TOB 171		2010	4	117	19.3	11.30	13.30			200910.09+324340.2
20092+3243	TOB 171		2016	5	117	19.1	11.30	13.30			200910.09+324340.2

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