12175+2856 STT 245

 
 
12h 17m 30.60s +28 56' 13.6" P.A. 282 sep 8.4 mag 5.70,11.20 Sp A3IV dist. 54.95 pc (179.25 l.y.)
 
 
Coord 2000
12175+2856
Discov num
STT 245
Comp
Coord arcsec 2000
12 17 30.60 +28 56 13.6
Date first
1843
Date last
2016
Obs
23
Pa first
278
Pa last
282
P.A. Now (θ)
282°
Sep first
7.4
Sep last
8.4
Sep. Now (ρ)
8.4"
Mag pri
5.70
Mag sec
11.20
delta mag (ΔM)
5.5
Spectral class
A3IV (white)
Pri motion ra
-034
Sec motion ra
Pri motion dec
+031
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
282
Precise sep
8.389
Constellation
Coma Berenices
SAO
82219
HIP
59923
Tycho2
1991-01894-1
HD
106887
HR
4673
BD
BD+29 2275
Distance
54.95
Distance ly
179.25
last precise pa
282
last precise sep
8.389
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12175+2856 STT 245 1999 19 281 8.3 5.70 10.20 A3IV D 121730.60+285613.6
12175+2856 STT 245 2009 20 281 8.3 5.70 10.20 A3IV D 121730.60+285613.6
12175+2856 STT 245 2015 22 282 8.4 5.70 10.70 A3IV 121730.60+285613.6
12175+2856 STT 245 2016 23 282 8.4 5.70 11.20 A3IV 121730.60+285613.6

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