00381-0030 HDO  31

 
 
00h 38m 04.57s -00 30' 12.6" P.A. 315 sep 25.3 mag 6.67,13.53 Sp K2III
 
 
Coord 2000
00381-0030
Discov num
HDO  31
Comp
Coord arcsec 2000
00 38 04.57 -00 30 12.6
Date first
1868
Date last
2015
Obs
9
Pa first
315
Pa last
315
P.A. Now (θ)
315°
Sep first
25.0
Sep last
25.3
Sep. Now (ρ)
25.3"
Mag pri
6.67
Mag sec
13.53
delta mag (ΔM)
6.86
Spectral class
K2III (yellow-orange)
Pri motion ra
-042
Sec motion ra
Pri motion dec
-011
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
314.9
Precise sep
25.281
Constellation
Cetus
SAO
128868
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00381-0030 HDO 31 1998 6 313 26.0 6.67 13.53 K2III D 003804.57-003012.6
00381-0030 HDO 31 2000 8 312 25.8 6.67 13.53 K2III D 003804.57-003012.6
00381-0030 HDO 31 2015 9 315 25.3 6.67 13.53 K2III 003804.57-003012.6

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