01398-2031 DON  21

 
 
01h 39m 50.42s -20 31' 03.4" P.A. 357 sep 2.7 mag 9.60,14.00 Sp F5 dist. 243.9 pc (795.6 l.y.)
 
 
Coord 2000
01398-2031
Discov num
DON  21
Comp
Coord arcsec 2000
01 39 50.42 -20 31 03.4
Date first
1929
Date last
1986
Obs
4
Pa first
346
Pa last
357
P.A. Now (θ)
357°
Sep first
2.0
Sep last
2.7
Sep. Now (ρ)
2.7"
Mag pri
9.60
Mag sec
14.00
delta mag (ΔM)
4.4
Spectral class
F5 (yellow-white)
Pri motion ra
+055
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
357
Precise sep
2.71
Cdsa2 id
DON 21
Constellation
Cetus
SAO
167206
HIP
7754
Tycho2
5857-00109-1
HD
10246
BD
BD-21 274
Ra deg
1.6640055555555555
De deg
-20.517611111111112
Distance
243.9
Distance ly
795.6
last precise pa
357
last precise sep
2.71
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01398-2031 DON 21 1986 4 357 2.7 9.60 14.00 F5 013950.42-203103.4

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