20080+3521 SEI 907

Coord 2000	20080+3521		Discov num	SEI 907		Comp			Coord arcsec 2000	20 08 01.18 +35 21 20.9
Date first	1896		Date last	2015		Obs	15
Pa first	206		Pa last	204		P.A. Now (θ)	204°
Sep first	22.0		Sep last	21.2		Sep. Now (ρ)	21.2"
Mag pri	11.41		Mag sec	11.60		delta mag (ΔM)	0.19		Spectral class
Pri motion ra	+004		Sec motion ra	+007
Pri motion dec	+005		Sec motion dec	+003
Notes

rPM=0.473 Nature of this double is uncertain.

Precise pa	203.8		Precise sep	21.16		Constellation	Cygnus		Tycho2	2679-01327-1
Gaia DR2	49495239808

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20080+3521	SEI 907		2002	8	204	21.3	11.41	11.60		D	200801.18+352120.9
20080+3521	SEI 907		2010	10	204	21.1	11.41	11.60			200801.18+352120.9
20080+3521	SEI 907		2015	11	204	21.2	11.41	11.60			200801.18+352120.9

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