15397-2343 B  2789

 
 
15h 39m 42.77s -23 43' 24.1" P.A. 338.00 sep 14.0 mag 8.81,13.00 Sp M2III
 
 
Coord 2000
15397-2343
Discov num
B  2789
Comp
Coord arcsec 2000
15 39 42.77 -23 43 24.1
Date first
1930
Date last
2015
Obs
5
Pa first
315
Pa last
338
P.A. Now (θ)
338°
Sep first
10.0
Sep last
14.0
Sep. Now (ρ)
14"
Mag pri
8.81
Mag sec
13.00
delta mag (ΔM)
4.19
Spectral class
M2III (red)
Pri motion ra
+002
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
338.2
Precise sep
14.048
Constellation
Libra
SAO
183673
Tycho2
6777-00784-1
Gaia DR2
6238583522366158720
HD
139576
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15397-2343 B 2789 1930 1 315 10.0 8.81 13.00 M2III 153942.77-234324.1
15397-2343 B 2789 2000 4 338 13.8 8.81 13.00 M2III 153942.77-234324.1
15397-2343 B 2789 2015 5 338 14.0 8.81 13.00 M2III 153942.77-234324.1

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