TT Arietis

Type VY Scl
Period (d) 0.1329
Mag 11
a(2000) 2h06m53.12s
d(2000) +15°17'39.4"

 

40 s integration, November 17, 2004. TKUCO 0.30 m
C1 = GSC 0120701413
C2 = GSC 0120701449

 

2004 - 2005 Data

November 16/17, 2004. Good conditions, some cloud and moderate breeze at end of evening. Scatter (C2-C1) < 0.007 mag.
November 17/18 2004. Very good conditions, low scatter throughout night (C2-C1 < 0.007 mag)
November 18/19 2004. Very good conditions, low scatter throughout night (C2-C1 < 0.009 mag)
November 19/20 2004. Good conditions, low scatter (C2-C1 < 0.007 mag). Observations terminated by cloud.
November 22/23 2004. Fair conditions, scatter (C2-C1 < 0.015 mag). Observations terminated by cloud.
November 25/26 2004. Moon 1 day from full, noticeable sky gradient. Fair conditions, scatter (C2-C1 < 0.018 mag). Observations terminated by cloud.
November 27/28 2004. Good conditions, scatter (C2-C1 < 0.013 mag). Observations terminated by cloud.
   
   

 

 

2001 - 2002 Data

 

60 s integration, October 24/25, 2001. TKUCO 0.30 m
C1 = GSC 0120701562
C2 = GSC 0120701413

 

 

Data from Oct 24/25, 2001. Clear and cold with high, thin cloud and haze. Cloud terminated observations approx 8h UT. Fair to good conditions.
Nov 5/6. Clear and cold with intense RED aurora over entire sky. Cloud beginnning at approx UT 7h40m. Despite aurora, scatter < 0.009 mag.
Nov 14/15. Short run terminated by wind and high cloud. Some short-period modulation in lc. Scatter approx 0.012 mag.
Nov 18/19. Very good conditions, some wind. Typical scatter < 0.008 mag. Prominent SH.
Dec 5/6. Clear and cold (T=-20C), good conditions. Some thin cloud at 8h UT. Scatter approx 0.009 mag over evening.
Dec 6/7. Good conditions - cloud at 2:30UT ended observations. Scatter 0.010 mag.
Dec 17/18. Good conditions, light breeze at times gusting, Scatter < 0.014 mag over evening.
Dec 20/21. Excellent conditions (cold -20C). Typical scatter C2-C1 = 0.005 mag.
Dec 23/24, 2001. Excellent conditions, scatter (C2-C1) = 0.006 mag. Pronounced flickering in lc.
Dec 24/25, 2001. High cloud and moon close to TT Ari. Despite this scatter still approx 0.012 mag.
Dec 29/30, 2001. Cold and frosty (T= -23C). Sky very bright. Typical scatter (C2-C1) < 0.02 mag.
Januar 5/6, 2002. Very good conditions at start but high winds terminated observations after approx. 3 h. Typical scatter < 0.015 mag.