21395+5729 STI2582

 
 
21h 39m 27.41s +57 29' 00.9" P.A. 187 sep 21.2 mag 8.38,11.42 Sp B0V dist. 342.47 pc (1117.14 l.y.)
 
 
Coord 2000
21395+5729
Discov num
STI2582
Comp
Coord arcsec 2000
21 39 27.41 +57 29 00.9
Date first
1906
Date last
2011
Obs
6
Pa first
237
Pa last
187
P.A. Now (θ)
187°
Sep first
2.9
Sep last
21.2
Sep. Now (ρ)
21.2"
Mag pri
8.38
Mag sec
11.42
delta mag (ΔM)
3.04
Spectral class
B0V (blue-white)
Pri motion ra
-004
Sec motion ra
-003
Pri motion dec
-003
Sec motion dec
-006
Notes
rPM=0.471
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
187.1
Precise sep
21.155
Constellation
Cepheus
SAO
33637
HIP
106937
Tycho2
3975-00236-1
HD
239729
BD
BD+56 2620
Distance
342.47
Distance ly
1117.14
last precise pa
187.1
last precise sep
21.155
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21395+5729 STI2582 2002 3 187 21.1 8.00 11.10 B0V D 213927.41+572900.9
21395+5729 STI2582 2003 4 187 20.9 8.00 11.10 B0V D 213927.41+572900.9
21395+5729 STI2582 2011 5 187 21.2 8.38 11.42 B0V 213927.41+572900.9

If you need more information about this double, apply for a data request form to the WDS.