V866 Sco

 

 

HBC254

 







Alternative names:
HBC 254, AS 205
Type:
CTTS
Spectral type:
K5 V
Photometric data:
U-B:
-0. 20 *
B-V:
1. 28
V:
12. 39
V-R:
R-I:
J-H:
1. 69
H-K:
1. 01
K:
5. 63
K-L:
1. 30
IRAS Fluxes(Jy): F12  = 9. 90
F25  = 14. 18
F60  = 18. 14
F100 = 19. 22
Activity parameters:
Pphot:
V Range:
vsini:
X-rays luminosity:
Wind parameters:
W(Hα) :
155 Å
W([OI]) :
1.8 Å
[13]
Associated with:
Binarity:
 
Characteristics:
Double system
  AS 205/c:
d =
1′′4
[54]
PA=
204
[54]






 

 

IUE data:








Mg II Si II He II C IV Si IV O I F 2900 F1855
(-erg2-
cm s) (-erg2-
cm s) (erg2-
cm s) (erg2-
cm s) (-erg2-
cm s) (-erg2-
cm s) (-erg--
cm2s˚A ) (-erg--
cm2s˚A )








1.0E-14








 

 

IUE spectra:









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









 
1 LWR 04705 L L 79-06-06 120.00 ECC=35 9.5
 
2 SWP 05440 L L 79-06-06 251.00 ECC=22,FOCUS CHANGE 9.5