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HD 285846 - UX Tau A |
HBC43
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Alternative names: |
HBC 43, BD+17∘ 736 |
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Type: |
WTTS |
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Spectral type: |
K2 V |
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Photometric data: |
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U-B: |
0. |
67 |
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B-V: |
1. |
03 |
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V: |
10. |
69 |
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V-R: |
0. |
93* |
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R-I: |
1. |
77* |
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J-H: |
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H-K: |
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K: |
7. |
49 |
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K-L: |
0. |
66 |
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| IRAS Fluxes(Jy): |
F12 = |
0. |
24 |
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F25 = |
1. |
58 |
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F60 = |
3. |
81 |
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F100 = |
4. |
61 |
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Activity parameters: |
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Pphot: |
2.7 days |
[3] |
V Range: |
~ 0.3 m |
[3] |
vsini: |
26 Km/s |
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| X-rays luminosity: |
(ROSAT) |
2.14×1030 erg s-1 (0.1-2.5 KeV) |
[9] |
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(EINSTEIN) |
1.82×1030 erg s-1 (0.16-3.5 KeV) |
[15] |
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Wind parameters: |
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W(Hα) : |
3.9 Å |
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W([OI]) : |
< 0.1 Å |
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[8] |
Associated with: |
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Binarity: |
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| Characteristics: |
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Comp. of a multiple system |
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| Components: |
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| UX Tau B : |
d = |
5′′ |
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[44] |
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PA= |
270∘ |
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[44] |
| UX Tau C : |
d = |
2′′7 |
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[48] |
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PA= |
181∘ |
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[48] |
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IUE spectra:
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n |
Cam. |
Image |
Disp. |
Ap. |
Date |
T. exp. |
Comments |
Mag |
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[min.] |
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| 1 |
LWP |
06966 |
L |
L |
85-10-22 |
9.00 |
B=85 |
11.3 |
| 2 |
LWP |
06974 |
L |
L |
85-10-23 |
90.00 |
E=151,C=140,B=107 |
11.1 |
| 3 |
LWP |
06978 |
L |
L |
85-10-23 |
57.00 |
E=112,C=116,B=60 |
10.6 |
| 4 |
LWP |
06980 |
L |
L |
85-10-24 |
70.00 |
E=140,C=126,B=89 |
10.9 |
| 5 |
LWP |
07657 |
L |
L |
86-02-13 |
55.00 |
C=200,B=158 |
10.9 |
| 6 |
LWP |
07658 |
L |
L |
86-02-13 |
45.00 |
E=170,C=177,B=139 |
10.9 |
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| 7 |
SWP |
48629 |
L |
L |
93-09-13 |
370.00 |
E=115,C=100,B=74 |
— |
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