20135+3634 SEI 1022 AC

20^h 13^m 31.38^s +36° 33' 47.6" P.A. 217.00 sep 21.9 mag 10.30,11.20

Coord 2000	20135+3634		Discov num	SEI1022		Comp	AC		Coord arcsec 2000	20 13 31.38 +36 33 47.6
Date first	1896		Date last	2015		Obs	10
Pa first	218		Pa last	216.7		P.A. Now (θ)	216.7°
Sep first	21.5		Sep last	21.853		Sep. Now (ρ)	21.853"
Mag pri	10.30		Mag sec	11.20		delta mag (ΔM)	0.9		Spectral class
Pri motion ra	-004		Sec motion ra	-002
Pri motion dec	-004		Sec motion dec	-005
Notes

rPM=0.395

Nature of this double is uncertain.

20135+3634 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 13 31 +36 33 48	SEI 1020 AB	2015	11	276	13.9	10.30	11.20	0.90
Show			20 13 31 +36 33 48	SEI 1022 AC	2015	10	217	21.9	10.30	11.20	0.90		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

2060495545053171712