20198+0716 GRV 331

Coord 2000	20198+0716		Discov num	GRV 331		Comp			Coord arcsec 2000	20 19 52.45 +07 16 57.6
Date first	1919		Date last	2015		Obs	8
Pa first	324		Pa last	323		P.A. Now (θ)	323°
Sep first	47.6		Sep last	47.5		Sep. Now (ρ)	47.5"
Mag pri	12.04		Mag sec	13.25		delta mag (ΔM)	1.21		Spectral class
Pri motion ra	+012		Sec motion ra	+014
Pri motion dec	-026		Sec motion dec	-033
Notes

rPM=0.203 (< 0.3, Physical double) This double is physical.

Precise pa	322.8		Precise sep	47.548		Constellation	Aquila		Tycho2	0508-00643-1
Gaia DR2	73174601600

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20198+0716	GRV 331		2000	3	323	47.6	12.00	13.20		D	201952.45+071657.6
20198+0716	GRV 331		2010	4	323	47.5	12.04	13.25			201952.45+071657.6
20198+0716	GRV 331		2015	5	323	47.5	12.04	13.25			201952.45+071657.6

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