19497+2836 GRV 287

Coord 2000	19497+2836		Discov num	GRV 287		Comp			Coord arcsec 2000	19 49 43.45 +28 36 47.4
Date first	1895		Date last	2015		Obs	11
Pa first	173		Pa last	173		P.A. Now (θ)	173°
Sep first	47.7		Sep last	48.0		Sep. Now (ρ)	48"
Mag pri	11.27		Mag sec	11.57		delta mag (ΔM)	0.3		Spectral class
Pri motion ra	-024		Sec motion ra	-023
Pri motion dec	-023		Sec motion dec	-025
Notes	T (Parallax indicates physical)

Visually invisible, K-band or other infrared star rPM=0.066 (< 0.3, Physical double) This double is physical.

Precise pa	173.1		Precise sep	48.013		Constellation	Vulpecula		SAO	87774
Tycho2	2152-02991-1		Gaia DR2	42800412288

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19497+2836	GRV 287		2000	5	173	48.0	11.27	11.57		D	194943.45+283647.4
19497+2836	GRV 287		2002	6	167	44.1	11.27	11.57		D	194943.45+283647.4
19497+2836	GRV 287		2010	6	173	48.1	11.27	11.57			194943.45+283647.4
19497+2836	GRV 287		2015	7	173	48.0	11.27	11.57			194943.45+283647.4

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