02308+5557 STI1903

 
 
02h 30m 45.71s +55 56' 53.2" P.A. 271 sep 13.7 mag 9.43,12.00 Sp K2
 
 
Coord 2000
02308+5557
Discov num
STI1903
Comp
Coord arcsec 2000
02 30 45.71 +55 56 53.2
Date first
1911
Date last
2013
Obs
7
Pa first
271
Pa last
271
P.A. Now (θ)
271°
Sep first
15.0
Sep last
13.7
Sep. Now (ρ)
13.7"
Mag pri
9.43
Mag sec
12.00
delta mag (ΔM)
2.57
Spectral class
K2 (yellow-orange)
Pri motion ra
+001
Sec motion ra
+009
Pri motion dec
+000
Sec motion dec
-008
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Perseus
Tycho2
3691-00214-1
HD
15406
last precise pa
271.3
last precise sep
13.697
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02308+5557 STI1903 1918 2 271 13.9 11.64 11.90 023044.38+555813.1
02308+5557 STI1903 1990 4 273 13.8 11.64 11.90 023044.38+555813.1
02308+5557 STI1903 2013 7 271 13.7 9.43 12.00 023045.71+555653.2

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