12312+0831 SLW 731

 
 
12h 31m 13.17s +08 31' 29.0" P.A. 272 sep 49.2 mag 16.20,18.30 Sp M2.5+M3.9
 
 
Coord 2000
12312+0831
Discov num
SLW 731
Comp
Coord arcsec 2000
12 31 13.17 +08 31 29.0
Date first
2000
Date last
2010
Obs
3
Pa first
273
Pa last
272
P.A. Now (θ)
272°
Sep first
49.0
Sep last
49.2
Sep. Now (ρ)
49.2"
Mag pri
16.20
Mag sec
18.30
delta mag (ΔM)
2.1
Spectral class
M2.5+M3.9 (red/red)
Pri motion ra
-115
Sec motion ra
-117
Pri motion dec
-038
Sec motion dec
-035
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.03 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
272.3
Precise sep
49.21
Constellation
Virgo
last precise pa
272.3
last precise sep
49.21
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12312+0831 SLW 731 2003 1 272 49.2 16.20 18.30 M2.5 M3.9 V R 123113.17+083129.0
12312+0831 SLW 731 2010 3 272 49.2 16.20 18.30 M2.5+M3.9 V R 123113.17+083129.0

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