Astronomy, Photography and Weather
May 28, 2023, 02:01:36 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  

Multiple ISS Transits - July 20/21st

Pages: [1]
  Print  
Author Topic: Multiple ISS Transits - July 20/21st  (Read 563 times)
martinastro
Martin Mc Kenna
Global Moderator
Hero Member
*****
Posts: 5182


Maghera, N. Ireland


View Profile WWW
« on: July 22, 2008, 02:43:45 pm »

Roman, the exposure was 25 seconds at ISO400 with a 28mm lens at F/4. Unfortunately I can't do much about the noise as my camera tends to show it in an obvious fashion from ISO 400 upwards. I have ISO 3200 but I would never use it. I must try out the trial versions of the latest software which can remove noise from digital images. What did surprise me was the colour. On most occasions I need to adjust the levels to remove light pollution but on this night I just left it alone. Other than a weak unsharp mask and a few clicks of the contrast the images are untouched.

Brian, I could see Aldebaran on that night very clearly and was thinking the exact same thing. Orion will be hunting through the great eastern star fields in the very near future, and when that happens, we will have dark skies and meteor showers to contend with.
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