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V819 Tau |
HBC378
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Alternative names: |
HBC 378, WK 1, P1 |
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Type: |
WTTS |
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Spectral type: |
K7 V |
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Photometric data: |
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U-B: |
1. |
31 |
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B-V: |
1. |
57 |
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V: |
13. |
24 |
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V-R: |
1. |
00 |
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R-I: |
1. |
08 |
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J-H: |
0. |
82 |
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H-K: |
0. |
27 |
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K: |
8. |
50 |
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K-L: |
0. |
21 |
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| IRAS Fluxes(Jy): |
F12 = |
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F25 = |
0. |
10c |
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F60 = |
0. |
10b |
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F100 = |
0. |
50c |
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Activity parameters: |
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Pphot: |
5.6 days |
[4] |
V Range: |
0.2 m |
[4] |
vsini: |
< 15 Km/s |
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| X-rays luminosity: |
(ROSAT) |
7.7×1030 erg s-1 |
[68] |
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Wind parameters: |
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W(Hα) : |
1.7 Å |
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W([OI]) : |
< 0.02 Å |
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[35] |
Associated with: |
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Binarity: |
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| Characteristics: |
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Double system |
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d: |
10′′5 |
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[47] |
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PA: |
172∘ |
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[47] |
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IUE spectra and data
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n |
Cam. |
Image |
Disp. |
Ap. |
Date |
T. exp. |
Comments |
Mag |
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[min.] |
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| 1 |
LWR |
14389 |
L |
L |
82-10-12 |
18.00 |
E=89,B=42 |
13.1 |
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