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epsilon_Aurigae

  1. CHARA run 2, night 2 - rocky start with computers but good conditions and valid data underway (give or take header errors). about 9 hours ago from web
  2. First night was difficult - between computer issues, high clouds and poor seeing, only limited sets of new data obtained. Forecast: better about 23 hours ago from web
  3. CHARA 2, night one: computer problems and high clouds. changing to inner array config and hoping for better seeing. 10:57 PM Dec 1st from web
  4. With the arrival of December, so comes our 2nd CHARA run - the first chance to see how the intruding disk has changed since early Nov, V=3.5 8:59 AM Nov 29th from web
  5. Campaign newsletter # 15 is now online - see http://www.hposoft.com/EAur09/NL09/NL15.pdf - 46 pages of data and commentary! 8:34 AM Nov 23rd from web
  6. eps Aur is quickly fading to V ~ 3.5, that's down by 0.5 mag since mid-August. 9:12 PM Nov 20th from web
  7. Online chat happening now at http://www.aavso.org/cgi-bin/irc.cgi - join us, no account needed... 5:05 PM Nov 18th from web
  8. Eclipse ingress continues, tho apparently slowing in blue bands compared to redder - due to hot star hidden in disk or F star pulsations? 11:58 AM Nov 15th from web
  9. Apparently Shu-shu Huang was correct. We seem to see the dark disk intruding across the F star. 10:32 PM Nov 2nd from web
  10. 0200GMT on 3 Nov 2009: back at it at Mt.Wilson/CHARA - combo MIRC & PAVO instruments observing epsilon Aur. Good conditions, full moon. 6:33 PM Nov 2nd from web
  11. 1130GMT: reasonably successful evening, signing off and resuming next evening local time. 3:26 AM Nov 2nd from web
  12. Thus far we have about 30 degrees of "uv" coverage, with at least 180 degrees coverage needed to make a clear image. 3:11 AM Nov 2nd from web
  13. 1010GMT, continued fringe collection on eps, which goes out of range after 1153GMT. 2:09 AM Nov 2nd from web
  14. 0845GMT - have switched to inner array to extend hour angle coverage. Resuming with cal star fringes, eta Aur. 12:54 AM Nov 2nd from web
  15. Back to calibrator, 10 eta Aur. We'll need to change array settings after 0830GMT due to hour angle constraints. It will be awhile b4 pix. 12:03 AM Nov 2nd from web
  16. 0655GMT, first fringes on eps Aur! 10:53 PM Nov 1st from web
  17. Finishing up on cal star 10 eta Aur. Seeing still holding at ro ~ 10 cm... 10:39 PM Nov 1st from web
  18. Slewing to 10 (eta) Aur - calibrator star for eps. 9:15 PM Nov 1st from web
  19. Variable seeing is slowing down the fringe finding process... 8:19 PM Nov 1st from web
  20. It's 0255GMT. Calibrator for eps Aur comes into view at 0321, and eps after 0439... 6:55 PM Nov 1st from web
  • Name Epsilon Aurigae
  • Location Constellation Auriga
  • Web http://www.hposof...
  • Bio The 2009-2011 eclipse cycle
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