12307-5736 RST2801

 
 
12h 30m 39.03s -57 35' 46.3" P.A. 128 sep 2.1 mag 9.85,12.40 Sp B9IV/V
 
 
Coord 2000
12307-5736
Discov num
RST2801
Comp
Coord arcsec 2000
12 30 39.03 -57 35 46.3
Date first
1934
Date last
1947
Obs
2
Pa first
126
Pa last
128
P.A. Now (θ)
128°
Sep first
2.0
Sep last
2.1
Sep. Now (ρ)
2.1"
Mag pri
9.85
Mag sec
12.40
delta mag (ΔM)
2.55
Spectral class
B9IV/V (blue-white)
Pri motion ra
-012
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
128.1
Precise sep
2.08
Constellation
Crux
SAO
240008
Tycho2
8654-03114-1
HD
108831
last precise pa
128.1
last precise sep
2.08
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12307-5736 RST2801 1947 2 128 2.1 9.85 12.40 B9IV/V 123039.03-573546.3

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