21028+3534 SEI1376AC

 
 
21h 02m 46.07s +35 33' 29.8" P.A. 272 sep 11.4 mag 12.30,12.70
 
 
Coord 2000
21028+3534
Discov num
SEI1376
Comp
AC
Coord arcsec 2000
21 02 46.07 +35 33 29.8
Date first
1896
Date last
2012
Obs
6
Pa first
270
Pa last
272
P.A. Now (θ)
272°
Sep first
11.3
Sep last
11.4
Sep. Now (ρ)
11.4"
Mag pri
12.30
Mag sec
12.70
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
+000
Sec motion ra
+002
Pri motion dec
-005
Sec motion dec
-002
Notes
N R (See Notes, Red magnitudes)
Nature of this double is uncertain.
 
 
21028+3534 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21028+3534 SEI1375 AB 1896 2007 9 337 6.7 12.30 11.50 0.80
Show 21028+3534 SEI1376 AC 1896 2012 6 272 11.4 12.30 12.70 0.40 <===
Show 21028+3534 BTG 6 BC 1896 2007 6 236 10.7 11.50 12.70 1.20
Show 21028+3534 BTG 6 BD 1998 2007 3 274 16.0 11.50 14.20 2.70
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cygnus
last precise pa
271.7
last precise sep
11.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21028+3534 SEI1376 AC 1941 3 271 12.0 10.00 11.00 210245.85+353336.0
21028+3534 SEI1376 AC 2007 4 236 10.7 9.50 13.30 210245.85+353336.0
21028+3534 SEI1376 AC 2012 4 272 11.4 9.50 13.30 D 210245.85+353336.0

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