00381-0030 HDO  31

 
 
00h 38m 04.57s -00 30' 12.6" P.A. 312 sep 25.8 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
2000
Obs
8
Pa first
315
Pa last
312
P.A. Now (θ)
312°
Sep first
25.0
Sep last
25.8
Sep. Now (ρ)
25.8"
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
311.7
Precise sep
25.761
Cdsa2 id
HDO 31
Constellation
Cetus
SAO
128868
Ra deg
0.6346027777777777
De deg
-0.5035
last precise pa
311.7
last precise sep
25.761
 
 
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

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