20257+3731 LDS1042

Coord 2000	20257+3731		Discov num	LDS1042		Comp			Coord arcsec 2000	20 25 43.07 +37 31 19.1
Date first	1936		Date last	2015		Obs	10
Pa first	177		Pa last	174		P.A. Now (θ)	174°
Sep first	8.5		Sep last	8.6		Sep. Now (ρ)	8.6"
Mag pri	14.50		Mag sec	15.50		delta mag (ΔM)	1		Spectral class
Pri motion ra	+067		Sec motion ra	+066
Pri motion dec	+015		Sec motion dec	+010
Notes

rPM=0.074 (< 0.3, Physical double) This double is physical.

Precise pa	173.9		Precise sep	8.59		Constellation	Cygnus		SAO	70008
Gaia DR2	51662547200

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20257+3731	LDS1042		1998	2	174	8.6	14.50	15.50		D	202543.07+373119.1
20257+3731	LDS1042		2002	3	174	8.6	14.50	15.50		D	202543.07+373119.1
20257+3731	LDS1042		2010	4	173	8.1	14.50	15.50			202543.07+373119.1
20257+3731	LDS1042		2015	5	174	8.6	14.50	15.50			202543.07+373119.1

If you need more information about this double, apply for a data request form to the WDS.