Astronomy, Photography and Weather
September 23, 2020, 03:38:14 am
Welcome, Guest. Please login or register.

Login with username, password and session length
News: IAA lecture programme continues alternate Wednesdays from September - an excellent programme of lectures- Queens University Belfast - Bell Lecture Theatre. Also keep an eye out for the Summer Events
 
  Home Help Search Gallery Staff List Login Register  

How to image the wind?

Pages: [1]
  Print  
Author Topic: How to image the wind?  (Read 166 times)
brianb
Hero Member
*****
Posts: 1228



View Profile
« on: August 29, 2009, 09:25:03 pm »

Quote
Must have been an exceptionally strong wind to cause that much vibration in your tripod and mount!
About force 6 with gusts to gale force.... "Exceptionally strong" here would be storm force but I'd not normally be out in such conditions.

Incidentally I did get useful data from the session - had to reject 7 out of 21 frames of this set due to excessive vibration and the residuals from the remaining frames were larger than usual (0.04 - 0.05 mags instead of 0.01 - 0.02); using two different comparison stars I found V Vul at 8.757 +/- 0.045 and 8.741 +/- 0.050 (V band) on 2009 August 29.02. The sets on epsilon Aurigae, gamma Cassiopeiae and rho Cassiopeiae were much more successful due to the shorter focal length employed for measuring bright objects.

Is anyone else following epsilon Aurigae?

« Last Edit: August 29, 2009, 09:41:45 pm by brianb » Report Spam   Logged


Pages: [1]
  Print  
 
Jump to:  

Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum

Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy