20108+3552 SEI 954

Coord 2000	20108+3552		Discov num	SEI 954		Comp			Coord arcsec 2000	20 10 45.56 +35 51 38.1
Date first	1896		Date last	2015		Obs	10
Pa first	311		Pa last	314		P.A. Now (θ)	314°
Sep first	4.8		Sep last	4.8		Sep. Now (ρ)	4.8"
Mag pri	10.20		Mag sec	11.40		delta mag (ΔM)	1.2		Spectral class
Pri motion ra	+000		Sec motion ra	-003
Pri motion dec	-002		Sec motion dec	-007
Notes

rPM=0.766 Nature of this double is uncertain.

Precise pa	313.6		Precise sep	4.766		Constellation	Cygnus		SAO	69556
Tycho2	2683-02622-1		Gaia DR2	43166392064		HD	228118

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20108+3552	SEI 954		2003	8	314	4.7	10.20	11.40		D	201045.56+355138.1
20108+3552	SEI 954		2015	10	314	4.8	10.20	11.40			201045.56+355138.1

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