
Messier 41 (Open Cluster) / NGC 2287 / Little Beehive Cluster
- Found just about four degrees directly south of Sirius, the brightest star in the night sky.
o - It is a stunning, easy target for standard 10×50 binoculars and wide-field low-power telescope eyepieces.
o - Its bright red giant stars ~ M41 contains several red or orange giants, including a prominent central K‑type giant of magnitude +6.7 ~ these give the cluster its warm, colourful look.
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- Object Name
M41
- Object Type
Open Cluster
- Constellation
Canis Major
- Magnitude
+4.5
- Distance
2,300 light-years
- Age
190 billion years
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Equipment
Telescope:
Mount:
Accessories:
Sky-Watcher Esprint 80ED Triplet
Sky-Watcher AZ-EQ6 GT
ZWO ASIair Plus / PixInsight
Camera:
Guiding:
Filter:
ZWO ASI585MC Pro cooling
ZWO ASI1200MM
2″ Optolong eNchance
Bortle Scale: Welbourne, North Norfolk (Bortle 6.6)
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Integration
- Date:
Wednesday 24th September 2025
- Moonlit:
Waxing Crescent 3 days old
Magnitude: -9.8
Moonlit: 7.8%
- Total:
180’s x 10 subs = 30 minutes
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Constellation :- Canis Major / The Great Dogs

Object :-
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Object :-
Other name :-
Type :-
Magnitude :–
Distance :-
Constellation :-
Right Ascension :-
Declination :-
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M41
NGC 2287 / Little Beehive Cluster
Open Cluster
+4.5
2,300 light years / 26 light years across
CVn (Canis Major / The Great Dogs)
06h 46m 00s
-20° 46′ 38″
Enlarge on click the map.

(Click the map above for a large view.)
| Abbreviation: CVn |
| English Name: The Hunting Dogs |
| Genitive: Cor Caroli |
| Hemisphere: Northern Hemisphere |
| Location: Between the constellations of Puppis and Lepus. |
| Visible between latitudes: +90 and -40 degrees |
| Best season: Spring |
| Seen in three seasons: Winter, Spring and Summer |
| Best seen in: Early May (map) |
| Seen between: Circumpolar (This constellation of Camelopardalis stays in the Sky all the year.) |
| Right Ascension (RA): 13 hour |
| Declination (DEC): +40 degrees |
| Area (square degrees): 465 (38th) |
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Facts about M3
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- Its size and visibility ~ it spans about the size of the full Moon and shines at magnitude 4.5, making it visible to the naked eye under dark skies and excellent in binoculars.
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