20057+1617 BPM1992

Coord 2000	20057+1617		Discov num	BPM1992		Comp			Coord arcsec 2000	20 05 42.98 +16 17 08.9
Date first	1995		Date last	2015		Obs	8
Pa first	139		Pa last	139		P.A. Now (θ)	139°
Sep first	119.3		Sep last	118.9		Sep. Now (ρ)	118.9"
Mag pri	14.85		Mag sec	15.66		delta mag (ΔM)	0.81		Spectral class
Pri motion ra	-038		Sec motion ra	-024
Pri motion dec	-010		Sec motion dec	-018
Notes	N V (See Notes, Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.41 This double is physical.

Precise pa

139.1

Precise sep

118.88

Constellation

Sagitta

Gaia DR2

12587332096

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20057+1617	BPM1992		2000	2	139	119.0	14.85	15.66		NV	200542.98+161708.9
20057+1617	BPM1992		2001	3	139	119.0	14.85	15.66		NV	200542.98+161708.9
20057+1617	BPM1992		2010	4	139	119.3	14.85	15.66		NV	200542.98+161708.9
20057+1617	BPM1992		2015	4	139	118.9	14.85	15.66		NV	200542.98+161708.9

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