03305+3939 HDS 440 (RU Per)

 
 
03h 30m 30.28s +39 39' 29.3" P.A. 74 sep 0.3 mag 10.24,10.51 Sp M4e dist. 431.03 pc (1406.02 l.y.)
 
 
Coord 2000
03305+3939
Discov num
HDS 440
Comp
Coord arcsec 2000
03 30 30.28 +39 39 29.3
Date first
1991
Date last
1991
Obs
1
Pa first
74
Pa last
74
P.A. Now (θ)
74°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
10.24
Mag sec
10.51
delta mag (ΔM)
0.27
Spectral class
M4e (red)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
RU Per
Constellation
Perseus
HIP
16328
Tycho2
2866-02269-1
HD
275376
BD
BD+39 797
Distance
431.03
Distance ly
1406.02
last precise pa
74
last precise sep
0.299
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03305+3939 HDS 440 1991 1 74 0.3 10.24 10.51 M4e 033030.28+393929.3

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