COPYRIGHT, PLEASE NOTE
All the material on this website is copyrighted to J-P Metsavainio, if not otherwise stated. Any content on this website may not be reproduced without the author’s permission.
BUY A MUSEUM QUALITY POSTER
BUY A POSTER:https://astroanarchy.zenfolio.com/
Friday, November 7, 2008
APOD
-
-
My "Cygnus Trio" mosaic was selected as an "Astronomy Picture of the Day" by
the NASA.
You can see the NASA page here:
-
-
The Image
Subscribe to:
Post Comments (Atom)
6 comments:
I,ll send you some email.
J-P
could you comment on the accuracy of guiding required for shooting at 300mm focal length for 20-30min like you seem to do?
Does it absolutely require autoguiding?
Gongratulations about the picture at APOD!
Hi to All and thanks for commentin,
andyw, the guiding is very much needed here.
Depending resolution of imaging camera and given
focal lenght, it's easy to calculate pixels/archsecond.
In my case it's about 5pix/".
So unless you have a very good mount, some guiding is needed for maximal sharpness.
Onneksi olkoon! On kyllä hieno kuva!
terveisin
Jarno-Erik Faarinen
Kiitos!
Post a Comment