DI Tau

 

HBC39

 







Alternative names:
HBC 39, MH α259-9 sf
Type:
WTTS
Spectral type:
M0 V
Photometric data:
U-B:
1. 50
B-V:
1. 60
V:
12. 86
V-R:
1. 05
R-I:
1. 07
J-H:
0. 83
H-K:
0. 30
K:
8. 49
K-L:
0. 32
IRAS Fluxes(Jy): F12  = 0. 10 [66]
F25  = 0. 24 [66]
F60  = 0. 20 [66]
F100 = 0. 60 [66]
Activity parameters:
Pphot:
7.5 days
[6]
V Range:
0.1 m
[6]
vsini:
11 Km/s
X-rays luminosity: (EINSTEIN)
1.17×1030 erg s-1 (0.16-3.5 KeV)
[15]
Wind parameters:
W(Hα) :
2 Å
W([OI]) :
< 0.1 Å
[8]
Associated with:
Binarity:
Characteristics:
Double system
d =
0′′072
[48]
PA=
257
[11]






 

 

IUE spectra:









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









 
1 LWP 17190 L L 90-01-20 90.00 E=80,B=42 12.6
 
2 LWR 14437 L L 82-10-19 90.00 B=65 12.7