02581+3103 COU 556

 
 
02h 58m 06.50s +31 02' 48.2" P.A. 318 sep 0.3 mag 10.20,12.70 Sp G0
 
 
Coord 2000
02581+3103
Discov num
COU 556
Comp
Coord arcsec 2000
02 58 06.50 +31 02 48.2
Date first
1971
Date last
2009
Obs
3
Pa first
315
Pa last
318
P.A. Now (θ)
318°
Sep first
0.5
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
10.20
Mag sec
12.70
delta mag (ΔM)
2.5
Spectral class
G0 (yellow)
Pri motion ra
+003
Sec motion ra
Pri motion dec
-030
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
318.2
Precise sep
0.32
Constellation
Aries
Tycho2
2326-00573-1
last precise pa
318.2
last precise sep
0.32
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02581+3103 COU 556 1971 1 315 0.5 10.20 12.70 G0 025806.50+310248.2
02581+3103 COU 556 2007 2 319 0.4 10.20 12.70 G0 025806.50+310248.2
02581+3103 COU 556 2009 3 318 0.3 10.20 12.70 G0 025806.50+310248.2

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