21215+3719 ROE 24 AC

21^h 21^m 33.43^s +37° 17' 51.8" P.A. 266.00 sep 68.7 mag 11.98,11.42

Coord 2000	21215+3719		Discov num	ROE 24		Comp	AC		Coord arcsec 2000	21 21 33.43 +37 17 51.8
Date first	1991		Date last	2015		Obs	8
Pa first	267		Pa last	266.4		P.A. Now (θ)	266.4°
Sep first	68.7		Sep last	68.66		Sep. Now (ρ)	68.66"
Mag pri	11.98		Mag sec	11.42		delta mag (ΔM)	0.56		Spectral class
Pri motion ra	-007		Sec motion ra	-005
Pri motion dec	-020		Sec motion dec	+004
Notes

rPM=1.137

This double is not physical.

21215+3719 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			21 21 33 +37 17 52	ROE 24 AB	2015	10	168	10.3	11.98	11.53	0.45
Show			21 21 33 +37 17 52	ROE 24 AC	2015	8	266	68.7	11.98	11.42	0.56		<===
Show			21 21 33 +37 17 52	ROE 24 AD	2015	12	266	81.7	11.98	11.82	0.16
Show			21 21 28 +37 17 48	ROE 23 CD	2015	11	261	13.1	11.42	11.82	0.40

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2715-00852-1

Gaia DR2

1963914825928426496