Astrotreff's
Objects of the Month - 2025
Observing Guides in all four CSOG image orientations for Astrotreff's Objects of the Month in the year 2025.
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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Download - 2025
All of Astrotreff's Objects of the Month for the year 2025.
Published: 1 January 2026
Observing guides (pages): 11 (29)
Index files: 1
AstroPlanner planfiles: 1
1 open cluster
1 globular cluster
1 nebula
4 planetary nebulae
3 galaxies & galaxy groups
1 double star
1 catalog
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
August
Humason Planetary Nebulae
3 Planetary nebulae by Milton Humason.
1921PASP…33..175H
1922PASP…34..296H
Observing guides (pages): 7 (14)
Index files: 1
AstroPlanner planfiles: 1
Autostar Tours / NexTours / EQTours: 3
Argo Navis User Catalogs: 4
Click here to review the CSOG image orientations
Unmirrored
MH
MV
MHV
December
Double star "Sirius & the Pup" - Alpha Canis Majoris (Clark 1 - WDS06451-1643) in Canis Major
This object is included in CSOG's:
