12055-6955 DON 509

 
 
12h 05m 32.91s -69 54' 47.5" P.A. 195 sep 0.3 mag 9.57,10.20 Sp B9.5V dist. 507.61 pc (1655.82 l.y.)
 
 
Coord 2000
12055-6955
Discov num
DON 509
Comp
Coord arcsec 2000
12 05 32.91 -69 54 47.5
Date first
1932
Date last
1991
Obs
3
Pa first
192
Pa last
195
P.A. Now (θ)
195°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
9.57
Mag sec
10.20
delta mag (ΔM)
0.63
Spectral class
B9.5V (blue-white)
Pri motion ra
-016
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
195
Precise sep
0.298
Constellation
Musca
HIP
58974
Tycho2
9231-01287-1
HD
105027
CP
CP-69 1630
Distance
507.61
Distance ly
1655.82
last precise pa
195
last precise sep
0.298
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12055-6955 DON 509 1991 3 195 0.3 9.57 10.20 B9.5V D 120532.91-695447.5

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