12018-2504 B  2736A,BC

 
 
12H 01M 45.81S -25 03' 51.9" P.A. 317 SEP 41.8 MAG 9.49,13.92 SP A9V
 
 
Coord 2000
12018-2504
Discov num
B  2736
Comp
A,BC
Coord arcsec 2000
12 01 45.81 -25 03 51.9
Date first
1932
Date last
1999
Obs
3
Pa first
315
Pa last
317
P.A. Now (θ)
317°
Sep first
60.0
Sep last
41.8
Sep. Now (ρ)
41.8"
Mag pri
9.49
Mag sec
13.92
delta mag (ΔM)
4.43
Spectral class
A9V (white)
Pri motion ra
-022
Sec motion ra
+044
Pri motion dec
-005
Sec motion dec
+002
Notes
rPM=1.507
This double is not physical.
 
 
12018-2504 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 180390 12018-2504 B 2736 A,BC 1932 1999 3 317 41.8 9.49 13.92 4.43 <===
Show 180390 12018-2504 B 2736 BC 1998 1999 2 247 3.4 13.26 13.70 0.44
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Corvus
SAO
180390
Tycho2
6671-00148-1
HD
104459
last precise pa
317.4
last precise sep
41.777