20157+0957 J  1234

Coord 2000	20157+0957		Discov num	J  1234		Comp			Coord arcsec 2000	20 15 42.78 +09 56 37.9
Date first	1915		Date last	2015		Obs	6
Pa first	39		Pa last	43		P.A. Now (θ)	43°
Sep first	4.3		Sep last	4.4		Sep. Now (ρ)	4.4"
Mag pri	11.90		Mag sec	13.40		delta mag (ΔM)	1.5		Spectral class
Pri motion ra	-004		Sec motion ra
Pri motion dec	-010		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	43.1		Precise sep	4.365		Constellation	Delphinus		Tycho2	1077-01491-1
Gaia DR2	56428826240

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20157+0957	J 1234		2000	3	42	4.3	12.51	15.00		D	201542.78+095637.9
20157+0957	J 1234		2001	4	43	4.4	12.51	15.00		D	201542.78+095637.9
20157+0957	J 1234		2010	5	46	4.4	11.90	13.40			201542.78+095637.9
20157+0957	J 1234		2015	6	43	4.4	11.90	13.40			201542.78+095637.9

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