21576+1157 STTA 227 (HD 208668)

21^h 57^m 37.44^s +11° 56' 50.2" P.A. 32.00 sep 78.6 mag 7.51,9.03 Sp A0 dist. 282.49 pc (921.48 l.y.)

Coord 2000	21576+1157	Discov num	STTA227	Comp		Coord arcsec 2000	21 57 37.44 +11 56 50.2
Date first	1875	Date last	2015	Obs	25
Pa first	33	Pa last	32.3	P.A. Now (θ)	32.3°
Sep first	78.9	Sep last	78.575	Sep. Now (ρ)	78.575"
Mag pri	7.51	Mag sec	9.03	delta mag (ΔM)	1.52	Spectral class	A0 (white)
Pri motion ra	+007	Sec motion ra	+006
Pri motion dec	-002	Sec motion dec	-002
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.137 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS