15308+2913 CVR 789

 
 
15h 30m 47.14s +29 13' 36.4" P.A. 169 sep 8.3 mag 17.10,18.90 Sp M2+M3
 
 
Coord 2000
15308+2913
Discov num
CVR 789
Comp
Coord arcsec 2000
15 30 47.14 +29 13 36.4
Date first
1997
Date last
2010
Obs
3
Pa first
170
Pa last
169
P.A. Now (θ)
169°
Sep first
8.1
Sep last
8.3
Sep. Now (ρ)
8.3"
Mag pri
17.10
Mag sec
18.90
delta mag (ΔM)
1.8
Spectral class
M2+M3 (red/red)
Pri motion ra
+017
Sec motion ra
+012
Pri motion dec
-053
Sec motion dec
-057
Notes
V R (Proper motion indicates physical, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Corona Borealis
last precise pa
169.4
last precise sep
8.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15308+2913 CVR 789 2003 1 170 8.2 17.10 18.90 M2+M3 V R 153047.25+291328.4
15308+2913 CVR 789 2010 3 169 8.3 17.10 18.90 M2+M3 V R 153047.14+291336.4

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