|
V827 Tau |
HBC399
|
|
|
|
|
|
|
Alternative names: |
HBC 399, FK 2, P3 |
|
|
Type: |
WTTS |
|
Spectral type: |
K7, M0 |
|
|
Photometric data: |
|
|
|
U-B: |
1. |
12 |
|
|
B-V: |
1. |
40 |
|
|
V: |
12. |
18 |
|
|
V-R: |
0. |
89 |
|
|
R-I: |
0. |
95 |
|
|
J-H: |
0. |
72 |
|
|
H-K: |
0. |
20 |
|
|
K: |
8. |
13 |
|
|
K-L: |
0. |
16 |
|
|
IRAS Fluxes(Jy): |
F12 = |
0. |
05 |
|
[66] |
|
F25 = |
0. |
08 |
|
[66] |
|
F60 = |
0. |
14 |
|
[66] |
|
F100 = |
|
|
|
|
Activity parameters: |
|
|
|
Pphot: |
3.63 days |
[55] |
V Range: |
~ 0.2 m |
[55] |
vsini: |
18 Km/s |
|
X-rays luminosity: |
(ROSAT) |
3.02×1030 erg s-1 (0.1-2.5 KeV) |
[9] |
|
(EINSTEIN) |
3.39×1030 erg s-1 (0.16-3.5 KeV) |
[15] |
|
Wind parameters: |
|
|
|
W(Hα) : |
1.8 Å |
|
W([OI]) : |
< 0.1 Å |
|
[8] |
Associated with: |
|
|
|
|
Binarity: |
|
|
Characteristics: |
|
Single |
[47, 62, 64] |
|
|
|
|
|
|
|
|
|
IUE spectra:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
Cam. |
Image |
Disp. |
Ap. |
Date |
T. exp. |
Comments |
Mag |
|
|
|
|
|
|
[min.] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
LWP |
07540 |
L |
L |
86-01-20 |
235.00 |
E=188,C=107,B=80 |
11.8 |
|
|
|
|
|
|
|
|
|
2 |
LWR |
14374 |
L |
L |
82-10-10 |
120.00 |
E=115,C=90,B=50 |
12.2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|