15394+3638 STF1965 (Zet1 CrB)

 
 
15H 39M 22.68S +36 38' 09.0" P.A. 307 SEP 6.2 MAG 4.96,5.91 SP B7V+B9V DIST. 145.14 PC (473.45 L.Y.)
 
 
Coord 2000
15394+3638
Discov num
STF1965
Comp
Coord arcsec 2000
15 39 22.68 +36 38 09.0
Date first
1779
Date last
2016
Obs
336
Pa first
296
Pa last
307
P.A. Now (θ)
307°
Sep first
5.5
Sep last
6.2
Sep. Now (ρ)
6.2"
Mag pri
4.96
Mag sec
5.91
delta mag (ΔM)
0.95
Spectral class
B7V+B9V (blue-white/blue-white)
Pri motion ra
-017
Sec motion ra
-015
Pri motion dec
-004
Sec motion dec
-007
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Zet1 CrB
Constellation
Corona Borealis
SAO
64834
HIP
76669
Tycho2
2577-01754-1
HD
139892
HR
5833
GC
21063
BD
BD+37 2665
Bayer
Zeta 1 Coronae Borealis
Bayer name
Zet1 CrB
Flamsteed
7 Coronae Borealis
Flamsteed name
7 CrB
Distance
145.14
Distance ly
473.45
last precise pa
307.4
last precise sep
6.24