19589+3158 SEI 757

Coord 2000	19589+3158		Discov num	SEI 757		Comp			Coord arcsec 2000	19 58 51.85 +31 58 02.9
Date first	1893		Date last	2015		Obs	12
Pa first	194		Pa last	192		P.A. Now (θ)	192°
Sep first	15.6		Sep last	15.7		Sep. Now (ρ)	15.7"
Mag pri	9.77		Mag sec	12.36		delta mag (ΔM)	2.59		Spectral class	A3 (white)
Pri motion ra	-002		Sec motion ra	+000
Pri motion dec	-001		Sec motion dec	-002
Notes

rPM=1 This double is not physical.

Precise pa	192.2		Precise sep	15.652		Constellation	Cygnus		Tycho2	2674-01129-1
Gaia DR2	74924306944		HD	331596

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19589+3158	SEI 757		1998	4	192	15.7	9.77	12.00	A3	D	195851.85+315802.9
19589+3158	SEI 757		2002	5	192	15.7	9.77	12.00	A3	D	195851.85+315802.9
19589+3158	SEI 757		2012	6	192	15.7	9.77	12.00	A3	D	195851.85+315802.9
19589+3158	SEI 757		2015	8	192	15.7	9.77	12.36	A3		195851.85+315802.9

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