13490-2822 BU  413 (W Hya)

 
 
13h 49m 02.00s -28 22' 03.5" P.A. 108 sep 68.6 mag 7.79,9.59 Sp M8e dist. 104.28 pc (340.16 l.y.)
 
 
Coord 2000
13490-2822
Discov num
BU  413
Comp
Coord arcsec 2000
13 49 02.00 -28 22 03.5
Date first
1876
Date last
1999
Obs
18
Pa first
110
Pa last
108
P.A. Now (θ)
108°
Sep first
77.7
Sep last
68.6
Sep. Now (ρ)
68.6"
Mag pri
7.79
Mag sec
9.59
delta mag (ΔM)
1.8
Spectral class
M8e (red)
Pri motion ra
-049
Sec motion ra
-121
Pri motion dec
-059
Sec motion dec
-015
Notes
N L (See Notes, Linear solution)
rPM=0.692
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
107.6
Precise sep
68.618
Var name
W Hya
Constellation
Hydra
SAO
181981
HIP
67419
Tycho2
6728-00019-1
HD
120285
CD
CD-27 9429
CP
CP-27 4792
Distance
104.28
Distance ly
340.16
last precise pa
107.6
last precise sep
68.618
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13490-2822 BU 413 1991 17 107 69.0 7.79 9.59 M8e NL 134902.00-282203.5
13490-2822 BU 413 1999 18 108 68.6 7.79 9.59 M8e NL 134902.00-282203.5

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