Open cluster in Canis Major

M41 (NGC 2287)

From New York on October 13, 2026, M41 rises at 1:25 AM in the ESE, is highest at 6:11 AM (29° above the horizon in the S) and sets at 10:58 AM in the WSW.

Rises 1:25 AMOctober 14 · ESE
Highest 6:11 AM October 14 · 29° S
Sets 10:58 AMOctober 14 · WSW

In the 3D sky

The sky over New York turned towards M41. Drag to look around.

Loading 3D view...

12:07 PMTue, Oct 13

Drag to look around, pinch or scroll to zoom.

Evening visibility over the year

Height of M41 above the horizon at 10 pm local time on the 15th of each month, from New York.

0°30°60°90°Oct: -36°OctNov: -3°NovDec: 15°DecJan: 27°JanFeb: 27°FebMar: 23°MarApr: 8°AprMay: -11°MayJun: -34°JunJul: -56°JulAug: -70°AugSep: -58°Sep

Facts

TypeOpen cluster
Brightness (magnitude)4.5
Size in the sky12 arcminutes
ConstellationCanis Major
Position (J2000)06h 46m 00s, −20° 45′ 15″
Other designationsNGC 2287

Finder charts

A wide field to find the right part of the sky and a closer field with fainter stars. North is up and east on the left.

ColumbaLepusPuppisM42M47M48M50M93M79M41NE
50° field, stars to magnitude 5.
Canis MajorM41NE
12° field, stars to magnitude 9.

Nearby Messier objects

Data: OpenNGC (CC BY-SA 4.0). Photo: NASA Hubble Messier Catalog, credit as shown. Data sources

How to use this page

Choose your place and a night at the top. The page shows when the object is highest and where to look, the 3D sky with it marked, and its visibility through the year. The finder charts help you star-hop to it with binoculars or a small telescope.

Frequently asked questions

Can I see it with the naked eye?

The brightest Messier objects, such as the Pleiades and the Orion Nebula, show to the eye under a dark sky. Most others need binoculars or a small telescope, and all of them look best far from city lights.

Why does it look grey and not colourful like the photo?

The eye’s colour cells do not work in dim light, so faint objects look grey. Photos collect light for minutes or hours and show colours the eye cannot see.

When is the best time to look?

When the object is high in a dark sky and the Moon is down or a thin crescent. The page gives the best time for the night you choose.

Related guides