Paul Mortfield & Stefano Cancelli

 Vatican Observatory Calendar - 2010

  Title Elephant's Trunk
  Photo Credit: Paul Mortfield & Stefano Cancelli
  Object: vdB142 (van den Bergh 142)
  Date: September 2008
  Location: Sierra Remote Observatories California
  Telescope: RCOS 16" f/8.9
  Camera: Apogee U16M with AstroDon Gen2 Filters
  Wavelengths: Hydrogen-Alpha (3nm), Oxygen-III (3nm), Sulfur-II (3nm), RGB
  Exposure Time: 20 hours
  Notes: This intriguing nebula in Cepheus has been a long time favorite to capture. 6 hours of data were captured for each narrowband filter, with a couple hours of RGB to provide proper star colors. The narrowband data was mapped to Hubble palette. Click on the photo and explore the texture around the "eye".