Deep Sky Monitor From Curiosity to Cosmos.

Monoceros Mon

Monoceros is one of the 88 constellations, covering 482 square degrees of the sky (35th largest). It is highest at midnight in January and best in the evening sky in February and March.

12 of its best-known objects have a page of their own here.

Facts

AbbreviationMon
Size482 square degrees (35th largest of the 88; the full Moon covers about 0.2)
Middle (J2000)7h 01m, −3°
Highest at midnightJanuary (in the evening, around 8–10 pm: February and March)
How highFrom India (about 20° N) its middle climbs to about 67° above the horizon; from 50° N, to about 37°.
Pages here12 objects

Nebulae

7

Star clusters

2

Stars

2

Other objects

1

Brightest NGC and IC objects

OpenNGC
ObjectTypeMagnitudeSize
NGC 2232 (on the map)Open star cluster 3.99.9′
NGC 2264 (Christmas Tree Cluster)Star cluster with nebula 3.911.4′
NGC 2239 (on the map)Star cluster with nebula 4.89.3′
M50 · NGC 2323Open star cluster 5.914.1′
NGC 2238 (Rosette Nebula) (on the map)HII region (glowing hydrogen) 680′
NGC 2301 (Great Bird Cluster)Open star cluster 610.2′
NGC 2343 (on the map)Open star cluster 6.77.5′
NGC 2353 (on the map)Open star cluster 7.16.6′
NGC 2335 (on the map)Open star cluster 7.28.7′
NGC 2251 (on the map)Open star cluster 7.35.7′
NGC 2286 (on the map)Open star cluster 7.55.4′
NGC 2506 (on the map)Open star cluster 7.610.8′

Smaller magnitudes are brighter; the faintest stars the eye sees are about 6. The full Moon is about 31′ across.

Data: IAU constellation boundaries (Roman 1987) · OpenNGC (Mattia Verga, CC BY-SA 4.0) · Data sources & credits