21176+6818 YUN 1 AB

 
 
21h 17m 38.69s +68° 17' 33.4" P.A. 92.00 sep 9.0 mag 10.49,13.08
 
 
Coord 2000 21176+6818 Discov num YUN   1 Comp AB Coord arcsec 2000 21 17 38.69 +68 17 33.4
Date first 2000 Date last 2004 Obs 2
Pa first 98 Pa last 92 P.A. Now (θ) 92°
Sep first 9.9 Sep last 8.97 Sep. Now (ρ) 8.97"
Mag pri 10.49 Mag sec 13.08 delta mag (ΔM) 2.59 Spectral class
Pri motion ra +018 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes K (K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
 
 
21176+6818 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 17 39 +68 17 33 YUN 1 AB 2004 2 92 9.0 10.49 13.08 2.59 <===
Show 21 17 39 +68 17 33 CON 40 CD 2004 1 69 1.0 10.50
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus