Open cluster · Puppis

M46

Also known as: NGC 2437

mag 6.127′ across

About

M46 is an open cluster of magnitude 6.1 in Puppis, about 27′ across.

M46 is in the constellation Puppis.
Best evenings: around early March it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
Where on Earth: it is seen well, at least 10° up, from south of 65° N.

When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.

EyesNot visible to the naked eye.
Binoculars (10×50)A rich scattering of stars — binoculars often give the best view.
Telescope (6–8 inch)Dozens of stars, many sharp and some coloured.

For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.

Designations	M46, NGC 2437
Type	Open cluster
Magnitude	6.1The smaller the number, the brighter.
Apparent size	27′the full Moon is 31′ across
Constellation	Puppis
Right ascension (J2000)	07h 41m 46.8s
Declination (J2000)	−14° 48′ 36″