20025+3940 BRT2251

Coord 2000	20025+3940		Discov num	BRT2251		Comp			Coord arcsec 2000	20 02 32.24 +39 39 48.8
Date first	1892		Date last	2015		Obs	8
Pa first	144		Pa last	155		P.A. Now (θ)	155°
Sep first	4.0		Sep last	4.3		Sep. Now (ρ)	4.3"
Mag pri	10.70		Mag sec	11.90		delta mag (ΔM)	1.2		Spectral class
Pri motion ra	-019		Sec motion ra	-015
Pri motion dec	+029		Sec motion dec	-030
Notes

rPM=1.706 This double is not physical.

Precise pa	154.7		Precise sep	4.341		Constellation	Cygnus		Tycho2	3154-01062-1
Gaia DR2	96283717632

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20025+3940	BRT2251		2007	4	151	4.2	9.30	10.50		D	200232.24+393948.8
20025+3940	BRT2251		2011	7	154	4.3	9.30	10.50			200232.24+393948.8
20025+3940	BRT2251		2015	8	155	4.3	10.70	11.90			200232.24+393948.8

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