20296+3901 SEI1137AC

Coord 2000	20296+3901		Discov num	SEI1137		Comp	AC		Coord arcsec 2000	20 29 35.09 +39 01 10.4
Date first	1895		Date last	2016		Obs	16
Pa first	313		Pa last	310		P.A. Now (θ)	310°
Sep first	22.2		Sep last	22.0		Sep. Now (ρ)	22"
Mag pri	11.09		Mag sec	11.41		delta mag (ΔM)	0.32		Spectral class	A5+G8 (white/yellow)
Pri motion ra	-004		Sec motion ra	-005
Pri motion dec	-002		Sec motion dec	-014
Notes

rPM=0.81 This double is not physical.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		70100	20296+3901	ALI 936	AB	1928	2016	11	77	10.5	11.09	11.46	0.37
Show		70100	20296+3901	SEI1137	AC	1895	2016	16	310	22.0	11.09	11.41	0.32		<===

Triple system
3 visible stars in this system

Precise pa	309.6		Precise sep	22.036		Constellation	Cygnus		SAO	70100
Tycho2	3152-01441-1		Gaia DR2	05531141760

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20296+3901	SEI1137	AC	1998	8	310	22.1	11.09	11.71		D	202935.09+390110.4
20296+3901	SEI1137	AC	2002	9	310	22.1	11.09	11.71		D	202935.09+390110.4
20296+3901	SEI1137	AC	2016	12	310	22.0	11.09	11.41	A5+G8		202935.09+390110.4

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