CD -3310685

 

 

HBC248

 







Alternative names:
HBC 248, Sz 68
Type:
CTTS
Spectral type:
K2 V
Photometric data:
U-B:
0. 89
B-V:
1. 27
V:
10. 31
V-R:
1. 09*
R-I:
J-H:
0. 70
H-K:
0. 38
K:
6. 52
K-L:
0. 65
IRAS Fluxes(Jy): F12  = 2. 76
F25  = 4. 18
F60  = 8. 14
F100 = 24. 26
Activity parameters:
Pphot:
3.9 days
[3]
V Range:
< 0.1 m
[3]
vsini:
48 Km/s
X-rays luminosity:
Wind parameters:
W(Hα) :
6.8 Å
W([OI]) :
Associated with:
Binarity:
 
Characteristics:
Double system
d =
2′′6
[54]
PA=
295
[54]






 

 

IUE data:








Mg II Si II He II C IV Si IV O I F 2900 F1855
(ecmr2gs-) (cemrg2s) (ecmr2gs-) (cermg2s) (cermg2s) (cemrg2s) (-er2g˚-
cm sA ) (-erg2˚-
cm sA )








7.1E-13 9.8E-15








 

 

IUE spectra:









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









 
1 LWP 03069 L L 84-04-01 120.00 ECC=363 10.6
2 LWP 08934 L L 86-08-20 25.00 E=137,C=63,B=35 10.3
3 LWP 13962 L L 88-08-30 45.00 ECC=351 10.1
4 LWP 13963 L L 88-08-30 30.00 ECC=351 10.2
5 SWP 34156 L L 88-08-30 254.00 PREAD 10.2