15555+3512 MCT   9

 
 
15h 55m 31.74s +35 12' 03.1" P.A. 254 sep 1.6 mag 13.20,15.50 Sp M4+M7
 
 
Coord 2000
15555+3512
Discov num
MCT   9
Comp
Coord arcsec 2000
15 55 31.74 +35 12 03.1
Date first
1998
Date last
2014
Obs
12
Pa first
266
Pa last
254
P.A. Now (θ)
254°
Sep first
1.5
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
13.20
Mag sec
15.50
delta mag (ΔM)
2.3
Spectral class
M4+M7 (red/red)
Pri motion ra
-215
Sec motion ra
Pri motion dec
+160
Sec motion dec
Notes
N V R (See Notes, Proper motion indicates physical, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
253.8
Precise sep
1.63
Constellation
Corona Borealis
last precise pa
253.8
last precise sep
1.63
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15555+3512 MCT 9 2005 2 261 1.6 13.68   M4 M7 N 155531.90+351201.8
15555+3512 MCT 9 2008 5 258 1.6 13.20 15.50 M4+M7 N R 155531.90+351201.8
15555+3512 MCT 9 2014 12 254 1.6 13.20 15.50 M4+M7 NV R 155531.90+351201.8

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