01312-0338 HJ  639

 
 
01h 31m 13.60s -03 37' 38.9" P.A. 100 sep 4.6 mag 10.37,11.50
 
 
Coord 2000
01312-0338
Discov num
HJ  639
Comp
Coord arcsec 2000
01 31 13.60 -03 37 38.9
Date first
1897
Date last
2015
Obs
10
Pa first
98
Pa last
100
P.A. Now (θ)
100°
Sep first
4.5
Sep last
4.6
Sep. Now (ρ)
4.6"
Mag pri
10.37
Mag sec
11.50
delta mag (ΔM)
1.13
Spectral class
Pri motion ra
-024
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
99.7
Precise sep
4.579
Constellation
Cetus
Tycho2
4685-02088-1
Gaia DR2
2483954517000491648
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01312-0338 HJ 639 2004 7 101 4.4 10.37 11.50 D 013113.60-033738.9
01312-0338 HJ 639 2010 9 99 3.6 10.37 11.50 013113.60-033738.9
01312-0338 HJ 639 2015 10 100 4.6 10.37 11.50 013113.60-033738.9

If you need more information about this double, apply for a data request form to the WDS.