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Monoceros

Genitive: Monocerotis

Equatorial Winter 482 sq° Mon

Brightest star: Beta Monocerotis (mag 3.93)

RA 07h 08m 0.0s · Dec -2d 00' 0"

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Monoceros - Mythology

Mythology

The Unicorn, a relatively modern constellation. Beta Monocerotis is one of the finest triple star systems in the sky.

Observing Highlights

Lies in a rich Milky Way field between Orion and Canis Major. Contains the Rosette Nebula (NGC 2237), Christmas Tree Cluster (NGC 2264), and Hubble's Variable Nebula (NGC 2261).

When is Monoceros up?

Showing 50.0° N, 0.0° E. Save your location for a personalised chart.
12:0015:0018:0021:0000:0003:0006:0009:0012:00JanJan 00:00 — altitude 38°Jan 01:00 — altitude 35°Jan 02:00 — altitude 29°Jan 03:00 — altitude 21°Jan 04:00 — altitude 13°Jan 05:00 — altitude 3°Jan 06:00 — altitude -6° (twilight)Jan 07:00 — altitude -16° (twilight)Jan 08:00 — altitude -25° (daytime)Jan 09:00 — altitude -33° (daytime)Jan 10:00 — altitude -38° (daytime)Jan 11:00 — altitude -42° (daytime)Jan 12:00 — altitude -42° (daytime)Jan 13:00 — altitude -38° (daytime)Jan 14:00 — altitude -32° (daytime)Jan 15:00 — altitude -24° (daytime)Jan 16:00 — altitude -15° (daytime)Jan 17:00 — altitude -6° (daytime)Jan 18:00 — altitude 4° (twilight)Jan 19:00 — altitude 13°Jan 20:00 — altitude 22°Jan 21:00 — altitude 29°Jan 22:00 — altitude 35°Jan 23:00 — altitude 38°Jan: best around 23:00 localFebFeb 00:00 — altitude 29°Feb 01:00 — altitude 21°Feb 02:00 — altitude 12°Feb 03:00 — altitude 3°Feb 04:00 — altitude -7°Feb 05:00 — altitude -16°Feb 06:00 — altitude -25° (twilight)Feb 07:00 — altitude -33° (daytime)Feb 08:00 — altitude -39° (daytime)Feb 09:00 — altitude -42° (daytime)Feb 10:00 — altitude -41° (daytime)Feb 11:00 — altitude -38° (daytime)Feb 12:00 — altitude -32° (daytime)Feb 13:00 — altitude -24° (daytime)Feb 14:00 — altitude -15° (daytime)Feb 15:00 — altitude -6° (daytime)Feb 16:00 — altitude 4° (daytime)Feb 17:00 — altitude 13° (daytime)Feb 18:00 — altitude 22° (twilight)Feb 19:00 — altitude 29° (twilight)Feb 20:00 — altitude 35°Feb 21:00 — altitude 38°Feb 22:00 — altitude 37°Feb 23:00 — altitude 34°Feb: best around 21:00 localMarMar 00:00 — altitude 14°Mar 01:00 — altitude 4°Mar 02:00 — altitude -5°Mar 03:00 — altitude -15°Mar 04:00 — altitude -24°Mar 05:00 — altitude -32° (twilight)Mar 06:00 — altitude -38° (daytime)Mar 07:00 — altitude -41° (daytime)Mar 08:00 — altitude -42° (daytime)Mar 09:00 — altitude -39° (daytime)Mar 10:00 — altitude -33° (daytime)Mar 11:00 — altitude -25° (daytime)Mar 12:00 — altitude -17° (daytime)Mar 13:00 — altitude -7° (daytime)Mar 14:00 — altitude 2° (daytime)Mar 15:00 — altitude 12° (daytime)Mar 16:00 — altitude 21° (daytime)Mar 17:00 — altitude 28° (daytime)Mar 18:00 — altitude 34° (daytime)Mar 19:00 — altitude 37° (twilight)Mar 20:00 — altitude 38°Mar 21:00 — altitude 35°Mar 22:00 — altitude 29°Mar 23:00 — altitude 22°Mar: best around 20:00 localAprApr 00:00 — altitude -5°Apr 01:00 — altitude -15°Apr 02:00 — altitude -24°Apr 03:00 — altitude -32°Apr 04:00 — altitude -38° (twilight)Apr 05:00 — altitude -41° (daytime)Apr 06:00 — altitude -42° (daytime)Apr 07:00 — altitude -39° (daytime)Apr 08:00 — altitude -33° (daytime)Apr 09:00 — altitude -25° (daytime)Apr 10:00 — altitude -16° (daytime)Apr 11:00 — altitude -7° (daytime)Apr 12:00 — altitude 3° (daytime)Apr 13:00 — altitude 12° (daytime)Apr 14:00 — altitude 21° (daytime)Apr 15:00 — altitude 29° (daytime)Apr 16:00 — altitude 34° (daytime)Apr 17:00 — altitude 38° (daytime)Apr 18:00 — altitude 38° (daytime)Apr 19:00 — altitude 35° (daytime)Apr 20:00 — altitude 29° (twilight)Apr 21:00 — altitude 22°Apr 22:00 — altitude 13°Apr 23:00 — altitude 4°Apr: best around 21:00 localMayMay 00:00 — altitude -24°May 01:00 — altitude -32°May 02:00 — altitude -38° (twilight)May 03:00 — altitude -41° (twilight)May 04:00 — altitude -42° (daytime)May 05:00 — altitude -39° (daytime)May 06:00 — altitude -33° (daytime)May 07:00 — altitude -26° (daytime)May 08:00 — altitude -17° (daytime)May 09:00 — altitude -7° (daytime)May 10:00 — altitude 2° (daytime)May 11:00 — altitude 12° (daytime)May 12:00 — altitude 21° (daytime)May 13:00 — altitude 28° (daytime)May 14:00 — altitude 34° (daytime)May 15:00 — altitude 37° (daytime)May 16:00 — altitude 38° (daytime)May 17:00 — altitude 35° (daytime)May 18:00 — altitude 29° (daytime)May 19:00 — altitude 22° (daytime)May 20:00 — altitude 13° (daytime)May 21:00 — altitude 4° (twilight)May 22:00 — altitude -6° (twilight)May 23:00 — altitude -15°JunJun 00:00 — altitude -38° (twilight)Jun 01:00 — altitude -41° (twilight)Jun 02:00 — altitude -42° (twilight)Jun 03:00 — altitude -39° (twilight)Jun 04:00 — altitude -33° (daytime)Jun 05:00 — altitude -25° (daytime)Jun 06:00 — altitude -16° (daytime)Jun 07:00 — altitude -7° (daytime)Jun 08:00 — altitude 3° (daytime)Jun 09:00 — altitude 12° (daytime)Jun 10:00 — altitude 21° (daytime)Jun 11:00 — altitude 29° (daytime)Jun 12:00 — altitude 34° (daytime)Jun 13:00 — altitude 38° (daytime)Jun 14:00 — altitude 38° (daytime)Jun 15:00 — altitude 35° (daytime)Jun 16:00 — altitude 29° (daytime)Jun 17:00 — altitude 22° (daytime)Jun 18:00 — altitude 13° (daytime)Jun 19:00 — altitude 4° (daytime)Jun 20:00 — altitude -6° (daytime)Jun 21:00 — altitude -16° (twilight)Jun 22:00 — altitude -25° (twilight)Jun 23:00 — altitude -32° (twilight)JulJul 00:00 — altitude -42°Jul 01:00 — altitude -39° (twilight)Jul 02:00 — altitude -33° (twilight)Jul 03:00 — altitude -26° (twilight)Jul 04:00 — altitude -17° (daytime)Jul 05:00 — altitude -7° (daytime)Jul 06:00 — altitude 2° (daytime)Jul 07:00 — altitude 12° (daytime)Jul 08:00 — altitude 21° (daytime)Jul 09:00 — altitude 28° (daytime)Jul 10:00 — altitude 34° (daytime)Jul 11:00 — altitude 37° (daytime)Jul 12:00 — altitude 38° (daytime)Jul 13:00 — altitude 35° (daytime)Jul 14:00 — altitude 29° (daytime)Jul 15:00 — altitude 22° (daytime)Jul 16:00 — altitude 13° (daytime)Jul 17:00 — altitude 4° (daytime)Jul 18:00 — altitude -6° (daytime)Jul 19:00 — altitude -15° (daytime)Jul 20:00 — altitude -24° (daytime)Jul 21:00 — altitude -32° (twilight)Jul 22:00 — altitude -38° (twilight)Jul 23:00 — altitude -41° (twilight)AugAug 00:00 — altitude -33°Aug 01:00 — altitude -25°Aug 02:00 — altitude -16°Aug 03:00 — altitude -7° (twilight)Aug 04:00 — altitude 3° (twilight)Aug 05:00 — altitude 12° (daytime)Aug 06:00 — altitude 21° (daytime)Aug 07:00 — altitude 29° (daytime)Aug 08:00 — altitude 34° (daytime)Aug 09:00 — altitude 38° (daytime)Aug 10:00 — altitude 38° (daytime)Aug 11:00 — altitude 35° (daytime)Aug 12:00 — altitude 29° (daytime)Aug 13:00 — altitude 22° (daytime)Aug 14:00 — altitude 13° (daytime)Aug 15:00 — altitude 4° (daytime)Aug 16:00 — altitude -6° (daytime)Aug 17:00 — altitude -16° (daytime)Aug 18:00 — altitude -25° (daytime)Aug 19:00 — altitude -32° (daytime)Aug 20:00 — altitude -38° (twilight)Aug 21:00 — altitude -42° (twilight)Aug 22:00 — altitude -42°Aug 23:00 — altitude -38°SepSep 00:00 — altitude -16°Sep 01:00 — altitude -7°Sep 02:00 — altitude 3°Sep 03:00 — altitude 12°Sep 04:00 — altitude 21° (twilight)Sep 05:00 — altitude 29° (twilight)Sep 06:00 — altitude 34° (daytime)Sep 07:00 — altitude 38° (daytime)Sep 08:00 — altitude 38° (daytime)Sep 09:00 — altitude 35° (daytime)Sep 10:00 — altitude 29° (daytime)Sep 11:00 — altitude 21° (daytime)Sep 12:00 — altitude 13° (daytime)Sep 13:00 — altitude 3° (daytime)Sep 14:00 — altitude -6° (daytime)Sep 15:00 — altitude -16° (daytime)Sep 16:00 — altitude -25° (daytime)Sep 17:00 — altitude -33° (daytime)Sep 18:00 — altitude -38° (daytime)Sep 19:00 — altitude -42° (twilight)Sep 20:00 — altitude -42° (twilight)Sep 21:00 — altitude -38°Sep 22:00 — altitude -32°Sep 23:00 — altitude -24°Sep: best around 03:00 localOctOct 00:00 — altitude 3°Oct 01:00 — altitude 12°Oct 02:00 — altitude 21°Oct 03:00 — altitude 28°Oct 04:00 — altitude 34°Oct 05:00 — altitude 38° (twilight)Oct 06:00 — altitude 38° (daytime)Oct 07:00 — altitude 35° (daytime)Oct 08:00 — altitude 29° (daytime)Oct 09:00 — altitude 22° (daytime)Oct 10:00 — altitude 13° (daytime)Oct 11:00 — altitude 4° (daytime)Oct 12:00 — altitude -6° (daytime)Oct 13:00 — altitude -16° (daytime)Oct 14:00 — altitude -24° (daytime)Oct 15:00 — altitude -32° (daytime)Oct 16:00 — altitude -38° (daytime)Oct 17:00 — altitude -42° (daytime)Oct 18:00 — altitude -42° (twilight)Oct 19:00 — altitude -38°Oct 20:00 — altitude -33°Oct 21:00 — altitude -25°Oct 22:00 — altitude -16°Oct 23:00 — altitude -6°Oct: best around 04:00 localNovNov 00:00 — altitude 21°Nov 01:00 — altitude 29°Nov 02:00 — altitude 34°Nov 03:00 — altitude 38°Nov 04:00 — altitude 38°Nov 05:00 — altitude 35°Nov 06:00 — altitude 29° (twilight)Nov 07:00 — altitude 21° (daytime)Nov 08:00 — altitude 13° (daytime)Nov 09:00 — altitude 3° (daytime)Nov 10:00 — altitude -6° (daytime)Nov 11:00 — altitude -16° (daytime)Nov 12:00 — altitude -25° (daytime)Nov 13:00 — altitude -32° (daytime)Nov 14:00 — altitude -38° (daytime)Nov 15:00 — altitude -42° (daytime)Nov 16:00 — altitude -42° (daytime)Nov 17:00 — altitude -38° (twilight)Nov 18:00 — altitude -32° (twilight)Nov 19:00 — altitude -24°Nov 20:00 — altitude -16°Nov 21:00 — altitude -6°Nov 22:00 — altitude 4°Nov 23:00 — altitude 13°Nov: best around 04:00 localDecDec 00:00 — altitude 34°Dec 01:00 — altitude 38°Dec 02:00 — altitude 38°Dec 03:00 — altitude 35°Dec 04:00 — altitude 29°Dec 05:00 — altitude 22°Dec 06:00 — altitude 13° (twilight)Dec 07:00 — altitude 4° (twilight)Dec 08:00 — altitude -6° (daytime)Dec 09:00 — altitude -16° (daytime)Dec 10:00 — altitude -24° (daytime)Dec 11:00 — altitude -32° (daytime)Dec 12:00 — altitude -38° (daytime)Dec 13:00 — altitude -42° (daytime)Dec 14:00 — altitude -42° (daytime)Dec 15:00 — altitude -38° (daytime)Dec 16:00 — altitude -33° (daytime)Dec 17:00 — altitude -25° (twilight)Dec 18:00 — altitude -16°Dec 19:00 — altitude -6°Dec 20:00 — altitude 3°Dec 21:00 — altitude 13°Dec 22:00 — altitude 21°Dec 23:00 — altitude 29°Dec: best around 02:00 local
below horizon astronomical dark — low to high altitude twilight daytime (sun up) best night-time hour

Right now

Daytime
Below horizon (-42°)

Upcoming (local)

Rise 10:46
Transit 16:34 38°
Set 22:24

Across the year

Best month February
Peak altitude 38°
Circumpolar here no
Dark-sky hours / year 1613

Neighboring Constellations

Orion Canis Major Canis Minor Gemini

Showpieces in Monoceros

7
Caldwell 50 survey image
Caldwell 50

NGC 2244

4.8 mag 24 Easy
Messier 50 survey image
Messier 50

NGC 2323

5.9 mag 16. Easy
Beta Mon

HIP 30867; Beta Mon; 11 Mon

4.60 mag 7.3″ B: 5.0 B3Ve Easy
NGC 2232 survey image
NGC 2232
3.9 mag 30. Easy
T Mon

HIP 30541

5.98 mag 5.6 - 6.6 DCEP F7Iab-K1Iab Medium
HIP 30422
6.72 mag 12.1″ B: 6.6 F5V Easy
Rosette Nebula survey image
Rosette Nebula

NGC 2237

C49

6.0 mag 80 Medium

Main Stars in Monoceros

20
Alpha Mon

HIP 37447; Alpha Mon; 26 Mon

3.93 mag K0 III Easy
Gamma Mon

HIP 29651; Gamma Mon; 5 Mon

3.98 mag K1.5IIIBa0.3 Easy
Delta Mon

HIP 34769; Delta Mon; 22 Mon

4.15 mag A2V Easy
Zeta Mon

HIP 39863; Zeta Mon; 29 Mon

4.34 mag 64.9″ B: 9.7 G2Ib Medium
Epsilon Mon

HIP 30419; Epsilon Mon; 8 Mon

4.44 mag 12.1″ B: 6.6 A5IV Easy
18 Mon

HIP 32578; 18 Mon

4.47 mag 0.6″ B: 11.0 K0+IIIaBa0.2 Very Hard
13 Mon

HIP 31216; 13 Mon

4.50 mag A0Ib Easy
Beta Mon

HIP 30867; Beta Mon; 11 Mon

4.60 mag 7.3″ B: 5.0 B3Ve Easy
15 Mon

HIP 31978; 15 Mon

4.66 mag 3.0″ B: 7.8 O7V((f)) Hard
28 Mon

HIP 39211; 28 Mon

4.68 mag K4III Easy
17 Mon

HIP 32533; 17 Mon

4.77 mag K4III Easy
20 Mon

HIP 34622; 20 Mon

4.92 mag 167.9″ B: 10.2 K0III Medium
27 Mon

HIP 39079; 27 Mon

4.93 mag K2III Easy
3 Mon

HIP 28574; 3 Mon

4.95 mag 2.0″ B: 8.0 B5III Very Hard
19 Mon

HIP 33971; 19 Mon

4.99 mag B1V Easy
2 Mon

HIP 28325; 2 Mon

5.03 mag A6IIIm vs Easy
HIP 29417
5.05 mag B2V Easy
10 Mon

HIP 30772; 10 Mon

5.06 mag 77.0″ B: 9.6 B2V Medium
HIP 32558
5.07 mag M1+Ib-IIa Easy
HIP 31278
5.10 mag B5Vn Easy

Double Stars in Monoceros

15
Beta Mon

HIP 30867; Beta Mon; 11 Mon

4.60 mag 7.3″ B: 5.0 B3Ve Easy
HIP 30422
6.72 mag 12.1″ B: 6.6 F5V Easy
HIP 36640
5.90 mag 23.9″ B: 8.7 F5V Easy
HIP 39675
6.23 mag 30.6″ B: 7.8 B9V Easy
HIP 31066
6.14 mag 16.2″ B: 9.1 B2V:nne Medium
V569 Mon

HIP 34234

6.49 mag 38.0″ B: 9.6 B0.5V+F5III Medium
HIP 30675
6.27 mag 20.8″ B: 9.2 A0Vn Medium
HIP 33873
6.17 mag 24.6″ B: 10.1 G5II Medium
14 Mon

HIP 31385; 14 Mon

6.45 mag 11.0″ B: 10.6 A0V s Hard
HIP 30906
6.16 mag 19.4″ B: 10.4 gM1 Hard
HIP 32851
5.77 mag 6.6″ B: 11.1 F2V Hard
15 Mon

HIP 31978; 15 Mon

4.66 mag 3.0″ B: 7.8 O7V((f)) Hard
HIP 29711
5.99 mag 4.3″ B: 10.0 A5IV s Hard
10 Mon

HIP 30772; 10 Mon

5.06 mag 77.0″ B: 9.6 B2V Medium
HIP 31168
6.03 mag 29.2″ B: 9.9 K0III Medium

Variable Stars in Monoceros

2
T Mon

HIP 30541

5.98 mag 5.6 - 6.6 DCEP F7Iab-K1Iab Medium
1 Mon

HIP 28321; 1 Mon

6.12 mag 5.94 - 6.31 HADS F2IV Hard

Deep Sky Objects in Monoceros

27
Open Cluster (23)
Caldwell 50 survey image
Caldwell 50

NGC 2244

4.8 mag 24 Easy
Messier 50 survey image
Messier 50

NGC 2323

5.9 mag 16. Easy
NGC 2232 survey image
NGC 2232
3.9 mag 30. Easy
NGC 2286 survey image
NGC 2286
7.5 mag 15. Easy
NGC 2353 survey image
NGC 2353
7.1 mag 20. Easy
Caldwell 54 survey image
Caldwell 54

NGC 2506

7.6 mag 7 Easy
NGC 2252 survey image
NGC 2252
8.0 mag 20. Easy
NGC 2301 survey image
NGC 2301
6.0 mag 12. Easy
NGC 2251 survey image
NGC 2251
7.3 mag 10. Easy
NGC 2335 survey image
NGC 2335
7.2 mag 12. Easy
NGC 2343 survey image
NGC 2343
6.7 mag 7. Easy
NGC 2215 survey image
NGC 2215
8.4 mag 11. Easy
NGC 2236 survey image
NGC 2236
8.5 mag 7. Easy
NGC 2324 survey image
NGC 2324
8.4 mag 8. Easy
NGC 2250 survey image
NGC 2250
9.0 mag 8. Easy
NGC 2302 survey image
NGC 2302
8.9 mag 3. Easy
NGC 2259 survey image
NGC 2259
11.0 mag 5. Hard
NGC 2311 survey image
NGC 2311
10.0 mag 7. Medium
NGC 2368 survey image
NGC 2368
12.0 mag 5. Very Hard
NGC 2254 survey image
NGC 2254
9.7 mag 4. Medium
NGC 2269 survey image
NGC 2269
10.0 mag 4. Medium
NGC 2262 survey image
NGC 2262
11.0 mag 4. Hard
NGC 2309 survey image
NGC 2309
11.0 mag 3. Hard
Galaxy (1)
NGC 2494 survey image
NGC 2494
14.0 mag S0-a Very Hard
Emission Nebula (1)
Rosette Nebula survey image
Rosette Nebula

NGC 2237

C49

6.0 mag 80 Medium
Reflection Nebula (1)
Hubble's Variable Nebula survey image
Hubble's Variable Nebula

NGC 2261

C46

10.0 mag 2 Hard
Unknown (1)
2264 C survey image
2264 C
3.9 mag 60. Easy