20119+3551 SEI 983AB

Coord 2000	20119+3551		Discov num	SEI 983		Comp	AB		Coord arcsec 2000	20 11 48.89 +35 50 52.8
Date first	1896		Date last	2015		Obs	13
Pa first	91		Pa last	89		P.A. Now (θ)	89°
Sep first	3.0		Sep last	3.5		Sep. Now (ρ)	3.5"
Mag pri	11.74		Mag sec	11.70		delta mag (ΔM)	0.04		Spectral class	A2: (white)
Pri motion ra	-011		Sec motion ra	+026
Pri motion dec	-004		Sec motion dec	-006
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=1.389 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20119+3551	SEI 983	AB	1896	2015	13	89	3.5	11.74	11.70	0.04		<===
Show			20119+3551	SEI 983	AC	1915	2015	5	243	8.1	11.74	15.00	3.26
Show			20119+3551	BKO 102	AD	1998	2015	4	277	14.7	11.74	15.29	3.55

Quadruple system
4 visible stars in this system

Precise pa

88.7

Precise sep

3.464

Constellation

Cygnus

Gaia DR2

49358430848

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20119+3551	SEI 983	AB	2006	11	89	3.4	10.80	10.80		D	201148.90+355052.7
20119+3551	SEI 983	AB	2015	13	89	3.5	11.74	11.70	A2:	N	201148.89+355052.8

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