Credit: Flavio Simeone
I also reconsidered my first idea of framing the picture with M13 in the center: the image is now encompassing the prominent features of this area of the sky, and is still - to my opinion - well balanced from the standpoint of photographic composition.
There's a number of tiny galaxies (like PGC2074909, 14.5 mag) which are clearly visible... if you know where to search!
Full resolution version and image processing data available at:
https://www.flickr.com/photos/55461835@ ... 874799824/-- ACQUISITION ---
Telescope: Artec250 equipped with Televue Paracorr Type 2.
Focal ratio: native f/4, working at f/4.6.
Main camera: QSI683WSG-8.
Sensor temperature: -20 degC.
Filters: LRGB Astrodon Gen2
Imaging scale: 0.976 arcsec/px.
Guide camera: Starlight Xpress Lodestar (on the main camera).
Acquisition software: MaxIm.
Guide software: MaxIm.
Guiding performance: variable, typical 0.21 arcsec RMS.
Mount: AP900 GTO CP2.
Sub-exposures
- L: 25x200s + 7x100s + 7x50s (bin1)
- R: 6x200s (bin1)
- G: 6x200s (bin1)
- B: 6x200s (bin1)
_________________
Galleria immagini Flavio Simeone e Stefano Seveso
https://www.flickr.com/photos/55461835@ ... 4/in/album
Home
Iscriviti
La Bacheca
F.A.Q.
Login/Logout
