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
Cdsa2 id
STT 245
Constellation
Coma Berenices
SAO
82219
HIP
59923
Tycho2
1991-01894-1
HD
106887
HR
4673
BD
BD+29 2275
Ra deg
12.291833333333333
De deg
28.93711111111111
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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