rogerivester

Top Posts

• A 4-Inch (102 mm) Refractor Can Be An Excellent Deep-Sky Telescope: Finally Sirius B, Barnard's Galaxy, and Much More....
• NGC 6645 - Open Cluster in Sagittarius - Also Known as The Ringlet Cluster
• M11 - Open Cluster in Scutum - Observer's Challenge Object - August 2019
• Observer's Challenge: 2009 - 2019
• Dr. Richard Stevens Obituary: Renowned Epidemiologist, Who Discovered the Correlation of Increased Incidences of Breast Cancer From the Hazards of Light Pollution: Prelude by Guest Host, Dr. Mario Motta
• Visual Observing with a 6-inch f/6 Imaging Reflector Telescope
• Planetary Nebula - NGC 7009 In Aquarius - Also Known As The Saturn Nebula
• Winter Albireo - Double Star - Known As h3945 and 145 G Canis Majoris - February Observer's Challenge Object
• NGC 925 - Galaxy - Triangulum December 2017 Observer's Challenge Report #106
• NGC 6905 - Planetary Nebula - Delphinus - Observer's Challenge Report - September 2017