20156+0615 HJL 277

Coord 2000	20156+0615		Discov num	HJL 277		Comp			Coord arcsec 2000	20 15 37.23 +06 14 40.0
Date first	1897		Date last	2015		Obs	18
Pa first	251		Pa last	251		P.A. Now (θ)	251°
Sep first	116.6		Sep last	114.8		Sep. Now (ρ)	114.8"
Mag pri	9.30		Mag sec	10.54		delta mag (ΔM)	1.24		Spectral class	K2 (yellow-orange)
Pri motion ra	-137		Sec motion ra	-120
Pri motion dec	-084		Sec motion dec	-075
Notes	U V (Proper motion indicates non-physical, Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.12 (< 0.3, Physical double) This double is not physical.

Precise pa	250.9		Precise sep	114.775		Constellation	Aquila		Tycho2	0508-02099-1
Gaia DR2	88504905600		HD	192623

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20156+0615	HJL 277		2000	9	251	115.1	9.30	10.54	K2	VD	201537.23+061440.0
20156+0615	HJL 277		2013	15	251	114.8	9.30	10.54	K2	U V	201537.23+061440.0
20156+0615	HJL 277		2015	16	251	114.7	9.30	10.54	K2	U V	201537.23+061440.0

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