20131+2107 GRV 323

Coord 2000	20131+2107		Discov num	GRV 323		Comp			Coord arcsec 2000	20 13 06.42 +21 07 09.8
Date first	2000		Date last	2015		Obs	7
Pa first	204		Pa last	204		P.A. Now (θ)	204°
Sep first	19.1		Sep last	19.0		Sep. Now (ρ)	19"
Mag pri	9.70		Mag sec	13.80		delta mag (ΔM)	4.1		Spectral class
Pri motion ra	-013		Sec motion ra	-019
Pri motion dec	-019		Sec motion dec	-006
Notes

rPM=0.622 Nature of this double is uncertain.

Precise pa	203.7		Precise sep	19.028		Constellation	Sagitta		SAO	88364
Tycho2	1630-00990-1		Gaia DR2	58392143232

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20131+2107	GRV 323		2000	2	204	19.1	9.70	13.80		D	201306.42+210709.8
20131+2107	GRV 323		2001	3	204	19.1	9.70	13.80		D	201306.42+210709.8
20131+2107	GRV 323		2010	3	204	18.1	9.70	13.80			201306.42+210709.8
20131+2107	GRV 323		2015	4	204	19.1	9.70	13.80			201306.42+210709.8

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