20287+3911 CBL  83

Coord 2000	20287+3911		Discov num	CBL  83		Comp			Coord arcsec 2000	20 28 41.83 +39 11 17.9
Date first	1998		Date last	2015		Obs	9
Pa first	172		Pa last	172		P.A. Now (θ)	172°
Sep first	41.8		Sep last	41.8		Sep. Now (ρ)	41.8"
Mag pri	8.77		Mag sec	14.30		delta mag (ΔM)	5.53		Spectral class	K0 (yellow-orange)
Pri motion ra	+029		Sec motion ra	+031
Pri motion dec	+048		Sec motion dec	+053
Notes	V (Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.088 (< 0.3, Physical double) This double is physical.

Precise pa	172.1		Precise sep	41.772		Constellation	Cygnus		SAO	70086
HIP	101007		Tycho2	3152-00065-1		Gaia DR2	16681247872		BD	BD+38 4105
Distance	99.8		Distance ly	325.55

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20287+3911	CBL 83		1998	2	172	41.8	8.70	13.90		VD	202841.83+391117.9
20287+3911	CBL 83		2002	2	172	41.7	8.70	13.90		VD	202841.83+391117.9
20287+3911	CBL 83		2013	4	172	41.8	8.77	14.30	K0	V	202841.83+391117.9
20287+3911	CBL 83		2015	5	172	41.8	8.77	14.30	K0	V	202841.83+391117.9

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