Observation Session – 15 December 2012

Location: Quercy Dark Sky Reserve, France

Session duration: 2 nights

Sky conditions: Excellent transparency after midnight

Instruments:

  • 7×50 binoculars
  • 250mm Dobsonian telescope
  • 100mm apochromatic refractor

Targets:

  • Perseus star field
  • M42 (Orion Nebula)
  • M45 (Pleiades)
  • Venus

Observation notes:

Transparency improved after midnight and allowed longer visual work on faint deep-sky targets.

The larger telescope resolved dense clusters cleanly, while the refractor was used for wider fields and comparison views.

A long visual sweep and one test exposure suggested a very thin dark line crossing part of the star field, but the effect could not be reproduced consistently.

Members present: Adama Traoré, Maxime Dallois, Lucille Godefert, Ayoub Berrabeh, Julien Bertaud