Emission nebula · Monoceros

NGC 2238 Rosette Nebula

Also known as: C49, LBN 948

mag 6.080′ across

About

NGC 2238, the Rosette Nebula, is an emission nebula of magnitude 6.0 in Monoceros, about 80′ across.

NGC 2238 is in the constellation Monoceros.
Best evenings: around mid-February 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 north of 75° S.

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.

EyesA faint glow in the Milky Way from a dark site with no Moon.
Binoculars (10×50)A faint glow from a dark site; a nebula filter helps.
Telescope (6–8 inch)A faint glow — a UHC or OIII filter and a dark sky make the difference.

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

Designations	NGC 2238, C49, LBN 948
Type	Emission nebula
Magnitude	6.0The smaller the number, the brighter.
Apparent size	80′ × 60′the full Moon is 31′ across
Constellation	Monoceros
Right ascension (J2000)	06h 30m 40.4s
Declination (J2000)	+05° 00′ 47″