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Doubles in session

Current system

20096+3506
TOB 173

Selections

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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.

20096+3506 TOB 173

20^h 09^m 35.23^s +35° 06' 25.8" P.A. 186.00 sep 15.6 mag 11.49,12.91

Coord 2000	20096+3506		Discov num	TOB 173		Comp			Coord arcsec 2000	20 09 35.23 +35 06 25.8
Date first	1982		Date last	2015		Obs	9
Pa first	185		Pa last	186		P.A. Now (θ)	186°
Sep first	15.4		Sep last	15.6		Sep. Now (ρ)	15.6"
Mag pri	11.49		Mag sec	12.91		delta mag (ΔM)	1.42		Spectral class
Pri motion ra	-003		Sec motion ra	-002
Pri motion dec	-005		Sec motion dec	-003
Notes

rPM=0.383

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

185.6

Precise sep

15.571

Constellation

Cygnus

Gaia DR2

2058816869990482176

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20096+3506	TOB 173		2000	2	186	15.7	11.30	12.60		D	200935.23+350625.8
20096+3506	TOB 173		2002	3	186	15.6	11.30	12.60		D	200935.23+350625.8
20096+3506	TOB 173		2010	4	188	15.8	11.49	12.91			200935.23+350625.8
20096+3506	TOB 173		2015	5	186	15.6	11.49	12.91			200935.23+350625.8

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