20145+1541 CHE 231

Coord 2000	20145+1541		Discov num	CHE 231		Comp			Coord arcsec 2000	20 14 28.32 +15 40 47.0
Date first	1910		Date last	2018		Obs	11
Pa first	261		Pa last	266		P.A. Now (θ)	266°
Sep first	14.9		Sep last	14.6		Sep. Now (ρ)	14.6"
Mag pri	13.50		Mag sec	13.60		delta mag (ΔM)	0.1		Spectral class
Pri motion ra	+013		Sec motion ra	-003
Pri motion dec	-012		Sec motion dec	+001
Notes

rPM=1.165 This double is not physical.

Precise pa	265.7		Precise sep	14.6		Constellation	Delphinus		SAO	105883
Gaia DR2	04372417536

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20145+1541	CHE 231		1998	2	266	14.6	13.50	13.60		D	201428.32+154047.0
20145+1541	CHE 231		2008	3	266	14.5	13.50	13.60		D	201428.32+154047.0
20145+1541	CHE 231		2010	5	266	14.4	13.50	13.60			201428.32+154047.0
20145+1541	CHE 231		2015	6	267	14.5	13.50	13.60			201428.32+154047.0
20145+1541	CHE 231		2018	7	266	14.6	13.50	13.60			201428.32+154047.0

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