Observation Session – 26 March 2011

Location: Atacama Desert, Chile

Session duration: 2 nights

Sky conditions: Cold and stable atmosphere, seeing ~8/10

Instruments:

  • 80mm refractor
  • 150mm Newtonian telescope
  • 300mm Dobsonian reflector

Targets:

  • Perseus star field
  • Albireo
  • Rigel
  • M13 (Hercules Cluster)

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.

Wind could be clearly heard during part of the night, yet nearby trees and grass remained perfectly still throughout the interval.

Members present: Adama Traoré, Maxime Dallois, Julien Bertaud

Observation Session – 12 March 2011

Location: Plateau de Valensole, France

Session duration: 2 nights

Sky conditions: Very dark sky (Bortle 2–3), light wind

Instruments:

  • 7×50 binoculars
  • 80mm refractor
  • 250mm Dobsonian telescope

Targets:

  • Betelgeuse
  • Double Cluster (NGC 869/884)
  • NGC 7000 (North America Nebula)
  • Polaris

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.

Members present: Lucille Godefert, Ayoub Berrabeh, Julien Bertaud