02309+7049 SLW 117

 
 
02h 30m 52.31s +70 49' 03.6" P.A. 273 sep 136.9 mag 14.40,19.10 Sp M0.3+M3.7
 
 
Coord 2000
02309+7049
Discov num
SLW 117
Comp
Coord arcsec 2000
02 30 52.31 +70 49 03.6
Date first
1994
Date last
2015
Obs
4
Pa first
273
Pa last
273
P.A. Now (θ)
273°
Sep first
137.0
Sep last
136.9
Sep. Now (ρ)
136.9"
Mag pri
14.40
Mag sec
19.10
delta mag (ΔM)
4.7
Spectral class
M0.3+M3.7 (red/red)
Pri motion ra
+026
Sec motion ra
+030
Pri motion dec
-033
Sec motion dec
-038
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.132 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
273
Precise sep
136.92
Cdsa2 id
SLW 117
Constellation
Cassiopeia
Ra deg
2.5145305555555555
De deg
70.81766666666667
last precise pa
273
last precise sep
136.92
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02309+7049 SLW 117 1994 1 273 137.0 14.44 19.13 M0.3 M3.7 V R 023052.31+704903.6
02309+7049 SLW 117 1999 2 273 137.1 14.40 19.10 M0.3 M3.7 VDR 023052.31+704903.6
02309+7049 SLW 117 2015 4 273 136.9 14.40 19.10 M0.3+M3.7 V R 023052.31+704903.6

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