01215-4221 BRT 642

 
 
01h 21m 32.92s -42 21' 09.3" P.A. 217 sep 3.7 mag 12.80,13.00
 
 
Coord 2000
01215-4221
Discov num
BRT 642
Comp
Coord arcsec 2000
01 21 32.92 -42 21 09.3
Date first
1899
Date last
2015
Obs
4
Pa first
228
Pa last
217
P.A. Now (θ)
217°
Sep first
2.4
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
12.80
Mag sec
13.00
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-040
Sec motion ra
Pri motion dec
-064
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
216.5
Precise sep
3.678
Constellation
Phoenix
Gaia DR2
54292937856
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01215-4221 BRT 642 1899 1 228 2.4 12.80 13.00 012132.92-422109.3
01215-4221 BRT 642 2000 2 216 3.8 12.80 13.00 012132.92-422109.3
01215-4221 BRT 642 2015 4 217 3.7 12.80 13.00 012132.92-422109.3

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