|
Do Ar 21 |
HBC637
|
|
|
|
|
|
|
Alternative names: |
HBC 637, Haro 1-6, ROX 8 |
|
|
Type: |
|
|
Spectral type: |
G, K |
|
|
Photometric data: |
|
|
|
U-B: |
1. |
68 |
|
|
B-V: |
2. |
13 |
|
|
V: |
13. |
95 |
|
|
V-R: |
2. |
24* |
|
|
R-I: |
1. |
97* |
|
|
J-H: |
1. |
34 |
|
|
H-K: |
0. |
64 |
|
|
K: |
6. |
22 |
|
|
K-L: |
0. |
39 |
|
|
IRAS Fluxes(Jy): |
F12 = |
|
|
|
|
F25 = |
|
|
|
|
F60 = |
|
|
|
|
F100 = |
|
|
|
|
Activity parameters: |
|
|
|
Pphot: |
|
|
V Range: |
|
|
vsini: |
|
|
X-rays luminosity: |
(ROSAT) |
1.58×1031 erg s-1 (1-2.4 KeV) |
[10] |
|
Wind parameters: |
|
|
|
W(Hα) : |
-0.9 Å (in absorption) |
[78] |
W([OI]) : |
|
|
|
Associated with: |
|
|
|
|
Binarity: |
|
|
|
Characterisitics: |
|
Single |
[32, 63] |
|
|
|
|
|
|
|
|
|
IUE spectra:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
n |
Cam. |
Image |
Disp. |
Ap. |
Date |
T. exp. |
Comments |
Mag |
|
|
|
|
|
|
[min.] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
LWP |
08106 |
L |
L |
86-04-26 |
60.00 |
B=45 |
13.7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|