ROX 20

 

HBC641

 







Alternative names:
HBC 641                
Type:
Spectral type:
M
Photometric data:
U-B:
1. 0 [5]
B-V:
1. 7 [5]
V:
15. 1 [5]
V-R:
R-I:
J-H:
H-K:
K:
K-L:
IRAS Fluxes(Jy): F12  =
F25  =
F60  =
F100 =
Activity parameters:
Pphot:
V Range:
 
vsini:
X-rays luminosity:
Wind parameters:
W(Hα) :
5.5 Å
W([OI]) :
Associated with:
Binarity:
Characterisitics:
Double system
d:
10′′3
[54]
PA:
301
[54]






 

 

IUE spectra:









no
¯
Cam. Image Disp. Ap. Date T. exp. Comments Mag
 
[min.]









 
1 LWP 08773 L L 86-07-30 135.00 B=138 No measured