Astrotreff's
Objects of the Month - 2026
Observing Guides in all four CSOG image orientations for Astrotreff's Objects of the Month in the year 2026.
Use the buttons to download the Observing Guides, click the object's name to visit the corresponding page on the Astrotreff forum. Please read Downloading CSOG and iPad Astronomy.
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January - February - March - April - May - June - July - August
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August
Emission nebula NGC7635 - the "Bubble Nebula" in Cassiopeia
This object is included in CSOG's:
Constellation editions by telescope aperture
Herschel edition
Hubble Nebulae edition
Cederblad Nebulae edition
Courtès Nebulae edition
Simeis Nebulae edition
Gaze-Shajn Nebulae edition
Sharpless Nebulae edition
Burnham's Celestial Handbook - DSO's edition
Named Objects edition
Herschel II observing program
Caldwell edition
Starnights 2025 - Challenge Observing Program
Golden State Star Party - Observing List
Golden State Star Party - 2026 Observing Program
Deep Sky Forum's Objects of the Week 2019 - Week 45
Webb Deep-Sky Society's Objects of the Season - Autumn 2018
July
Planetary nebula "Campbell's Star" in Cygnus
June
Globular cluster NGC5466 in Boötes
May
Galaxy pair KPG 290 - NGC3718 (Arp 214) & NGC3729 in Ursa Major
April
Galaxy group Hickson 57 - "Copeland's Septet" in Leo
March
Globular cluster NGC2419 - the "Intergalactic Wanderer" in Lynx
February
Open cluster Messier 67 (NGC2682) - the "King Cobra" in Cancer
January
Emission nebula Messier 42 (NGC1976) - the "Great Orion Nebula" in Orion
