NGC 281 - Pacman Nebula

This beautiful nebula is only 1,5° E of Alpha Cas (Shedir). The Pacman name is due to it's caracteristic cocoon shape with a dark nebula in it.
 

Technical Data
Optics 8" f/10 Schmidt-Cassegrain telescope
Focal Lenght 1260 mm
Focal Ratio f/6,3 (with focal reducer)
Exposure Time
  • without filters: 2 exposures of 15 min
  • with DeepSky filter: 1 exp of 30 min
Film Kodak E200
Developement sensibility 320 ISO
Location Tradate (VA, Italy), at 300m
Date and time of exposure start
  • without filters: 7 december 2001, h 18.48 and 19.05 TU
  • with DeepSky filter: 7 december 2001, h 21.12 TU
Mount Meade 8"
Tracking Pentax 75 guide refractor with ST4
Notes Image realized from the light polluted Pianura Padana.
From the non-filtered exposured I've used the green and blue channels, while from the DeepSky filtered image I've used the red channel.

HTML Editing and Publishing by Lorenzo Comolli. Email me at comolli@libero.it.
Back to Main Page