02549-0709 JNN  21

 
 
02h 54m 52.47s -07 09' 25.5" P.A. 285 sep 4.1 mag 13.80,16.30 Sp M3+M5.5
 
 
Coord 2000
02549-0709
Discov num
JNN  21
Comp
Coord arcsec 2000
02 54 52.47 -07 09 25.5
Date first
1998
Date last
2012
Obs
5
Pa first
288
Pa last
285
P.A. Now (θ)
285°
Sep first
4.1
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
13.80
Mag sec
16.30
delta mag (ΔM)
2.5
Spectral class
M3+M5.5 (red/red)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
285.4
Precise sep
4.109
Constellation
Eridanus
last precise pa
285.4
last precise sep
4.109
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02549-0709 JNN 21 2010 3 285 4.2 13.80 16.30 M3 M5.5 025452.47-070925.5
02549-0709 JNN 21 2012 5 285 4.1 13.80 16.30 M3 M5.5 NV 025452.47-070925.5

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