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20359+3729
SEI1186

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20359+3729 SEI1186

20^h 35^m 54.23^s +37° 29' 08.4" P.A. 189.00 sep 12.3 mag 11.80,12.52

Coord 2000	20359+3729		Discov num	SEI1186		Comp			Coord arcsec 2000	20 35 54.23 +37 29 08.4
Date first	1895		Date last	2015		Obs	12
Pa first	188		Pa last	189		P.A. Now (θ)	189°
Sep first	12.6		Sep last	12.3		Sep. Now (ρ)	12.3"
Mag pri	11.80		Mag sec	12.52		delta mag (ΔM)	0.72		Spectral class
Pri motion ra	+004		Sec motion ra	+002
Pri motion dec	+000		Sec motion dec	+000
Notes

rPM=0.5

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	189.2		Precise sep	12.281		Constellation	Cygnus		Tycho2	2698-00082-1
Gaia DR2	2062999888944378624

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20359+3729	SEI1186		1998	5	189	12.2	11.80	12.52		D	203554.23+372908.4
20359+3729	SEI1186		2002	6	189	12.2	11.80	12.52		D	203554.23+372908.4
20359+3729	SEI1186		2010	7	190	12.1	11.80	12.52			203554.23+372908.4
20359+3729	SEI1186		2015	8	189	12.3	11.80	12.52			203554.23+372908.4

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