19473+3018 GRV 278

Coord 2000	19473+3018		Discov num	GRV 278		Comp			Coord arcsec 2000	19 47 23.72 +30 18 28.7
Date first	1895		Date last	2015		Obs	12
Pa first	208		Pa last	208		P.A. Now (θ)	208°
Sep first	13.2		Sep last	13.4		Sep. Now (ρ)	13.4"
Mag pri	12.00		Mag sec	12.10		delta mag (ΔM)	0.1		Spectral class
Pri motion ra	-019		Sec motion ra	-019
Pri motion dec	-020		Sec motion dec	-020
Notes	V (Proper motion indicates physical)

This double is physical.

Precise pa	208.1		Precise sep	13.384		Constellation	Cygnus		SAO	68849
Tycho2	2656-00057-1		Gaia DR2	38258019200

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19473+3018	GRV 278		2000	5	208	13.4	12.00	12.10		D	194723.72+301828.7
19473+3018	GRV 278		2002	6	208	13.4	12.00	12.10		D	194723.72+301828.7
19473+3018	GRV 278		2010	6	208	13.3	12.00	12.10			194723.72+301828.7
19473+3018	GRV 278		2015	7	208	13.4	12.00	12.10			194723.72+301828.7

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