20315+3806 SEI1151

Coord 2000	20315+3806		Discov num	SEI1151		Comp			Coord arcsec 2000	20 31 35.50 +38 06 53.6
Date first	1895		Date last	2015		Obs	12
Pa first	213		Pa last	215		P.A. Now (θ)	215°
Sep first	24.8		Sep last	25.1		Sep. Now (ρ)	25.1"
Mag pri	11.01		Mag sec	11.52		delta mag (ΔM)	0.51		Spectral class
Pri motion ra	+009		Sec motion ra	-001
Pri motion dec	+001		Sec motion dec	+003
Notes

rPM=1.126 This double is not physical.

Precise pa	214.5		Precise sep	25.146		Constellation	Cygnus		Tycho2	3153-00438-1
Gaia DR2	78059306624

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20315+3806	SEI1151		1998	6	214	25.1	11.01	11.52		D	203135.50+380653.6
20315+3806	SEI1151		2002	7	214	25.1	11.01	11.52		D	203135.50+380653.6
20315+3806	SEI1151		2010	8	214	25.1	11.01	11.52			203135.50+380653.6
20315+3806	SEI1151		2015	9	215	25.1	11.01	11.52			203135.50+380653.6

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