13312+3122 SLW 884

 
 
13h 31m 13.15s +31 22' 11.8" P.A. 354.00 sep 8.5 mag 15.78,18.32 Sp M2.2+M4.0
 
 
Coord 2000
13312+3122
Discov num
SLW 884
Comp
Coord arcsec 2000
13 31 13.15 +31 22 11.8
Date first
1950
Date last
2015
Obs
12
Pa first
355
Pa last
354
P.A. Now (θ)
354°
Sep first
8.5
Sep last
8.5
Sep. Now (ρ)
8.5"
Mag pri
15.78
Mag sec
18.32
delta mag (ΔM)
2.54
Spectral class
M2.2+M4.0 (red/red)
Pri motion ra
-035
Sec motion ra
-037
Pri motion dec
-023
Sec motion dec
-021
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.066 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
354.2
Precise sep
8.547
Constellation
Canes Venatici
Gaia DR2
28800176512
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13312+3122 SLW 884 2004 1 354 8.6 15.78 18.32 M2.2 M4.0 V R 133113.15+312211.8
13312+3122 SLW 884 2010 3 355 8.0 15.78 18.32 M2.2+M4.0 V R 133113.15+312211.8
13312+3122 SLW 884 2015 4 354 8.5 15.78 18.32 M2.2+M4.0 V R 133113.15+312211.8

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