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Gemini

Genitive: Geminorum

Northern Winter 514 sq° Gem

Brightest star: Pollux (mag 1.14)

RA 06h 51m 60.0s · Dec +23d 00' 0"

Two parallel lines of stars

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Gemini - Mythology

Mythology

The Twins Castor and Pollux, inseparable brothers from Greek mythology. Pollux was immortal (son of Zeus) while Castor was mortal. Zeus placed them both in the sky together.

Observing Highlights

Castor is a remarkable sextuple star system. Contains the open cluster M35, the Eskimo Nebula (NGC 2392), and the Jellyfish Nebula. A zodiacal winter constellation and radiant of the Geminid meteors.

When is Gemini 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 62°Jan 01:00 — altitude 56°Jan 02:00 — altitude 48°Jan 03:00 — altitude 39°Jan 04:00 — altitude 29°Jan 05:00 — altitude 19°Jan 06:00 — altitude 10° (twilight)Jan 07:00 — altitude 2° (twilight)Jan 08:00 — altitude -5° (daytime)Jan 09:00 — altitude -11° (daytime)Jan 10:00 — altitude -15° (daytime)Jan 11:00 — altitude -17° (daytime)Jan 12:00 — altitude -16° (daytime)Jan 13:00 — altitude -13° (daytime)Jan 14:00 — altitude -8° (daytime)Jan 15:00 — altitude -1° (daytime)Jan 16:00 — altitude 7° (daytime)Jan 17:00 — altitude 16° (daytime)Jan 18:00 — altitude 25° (twilight)Jan 19:00 — altitude 35°Jan 20:00 — altitude 44°Jan 21:00 — altitude 53°Jan 22:00 — altitude 60°Jan 23:00 — altitude 63°Jan: best around 23:00 localFebFeb 00:00 — altitude 48°Feb 01:00 — altitude 38°Feb 02:00 — altitude 29°Feb 03:00 — altitude 19°Feb 04:00 — altitude 10°Feb 05:00 — altitude 2°Feb 06:00 — altitude -6° (twilight)Feb 07:00 — altitude -11° (daytime)Feb 08:00 — altitude -15° (daytime)Feb 09:00 — altitude -17° (daytime)Feb 10:00 — altitude -16° (daytime)Feb 11:00 — altitude -13° (daytime)Feb 12:00 — altitude -8° (daytime)Feb 13:00 — altitude -1° (daytime)Feb 14:00 — altitude 7° (daytime)Feb 15:00 — altitude 16° (daytime)Feb 16:00 — altitude 25° (daytime)Feb 17:00 — altitude 35° (daytime)Feb 18:00 — altitude 45° (twilight)Feb 19:00 — altitude 53° (twilight)Feb 20:00 — altitude 60°Feb 21:00 — altitude 63°Feb 22:00 — altitude 61°Feb 23:00 — altitude 55°Feb: best around 21:00 localMarMar 00:00 — altitude 30°Mar 01:00 — altitude 21°Mar 02:00 — altitude 12°Mar 03:00 — altitude 3°Mar 04:00 — altitude -5°Mar 05:00 — altitude -11° (twilight)Mar 06:00 — altitude -15° (daytime)Mar 07:00 — altitude -17° (daytime)Mar 08:00 — altitude -16° (daytime)Mar 09:00 — altitude -14° (daytime)Mar 10:00 — altitude -9° (daytime)Mar 11:00 — altitude -2° (daytime)Mar 12:00 — altitude 6° (daytime)Mar 13:00 — altitude 14° (daytime)Mar 14:00 — altitude 24° (daytime)Mar 15:00 — altitude 33° (daytime)Mar 16:00 — altitude 43° (daytime)Mar 17:00 — altitude 52° (daytime)Mar 18:00 — altitude 59° (daytime)Mar 19:00 — altitude 63° (twilight)Mar 20:00 — altitude 62°Mar 21:00 — altitude 56°Mar 22:00 — altitude 49°Mar 23:00 — altitude 39°Mar: best around 20:00 localAprApr 00:00 — altitude 11°Apr 01:00 — altitude 3°Apr 02:00 — altitude -5°Apr 03:00 — altitude -11°Apr 04:00 — altitude -15° (twilight)Apr 05:00 — altitude -17° (daytime)Apr 06:00 — altitude -16° (daytime)Apr 07:00 — altitude -14° (daytime)Apr 08:00 — altitude -9° (daytime)Apr 09:00 — altitude -2° (daytime)Apr 10:00 — altitude 6° (daytime)Apr 11:00 — altitude 15° (daytime)Apr 12:00 — altitude 24° (daytime)Apr 13:00 — altitude 34° (daytime)Apr 14:00 — altitude 43° (daytime)Apr 15:00 — altitude 52° (daytime)Apr 16:00 — altitude 59° (daytime)Apr 17:00 — altitude 63° (daytime)Apr 18:00 — altitude 62° (daytime)Apr 19:00 — altitude 56° (daytime)Apr 20:00 — altitude 48° (twilight)Apr 21:00 — altitude 39°Apr 22:00 — altitude 29°Apr 23:00 — altitude 20°Apr: best around 21:00 localMayMay 00:00 — altitude -5°May 01:00 — altitude -11°May 02:00 — altitude -15° (twilight)May 03:00 — altitude -17° (twilight)May 04:00 — altitude -16° (daytime)May 05:00 — altitude -14° (daytime)May 06:00 — altitude -9° (daytime)May 07:00 — altitude -2° (daytime)May 08:00 — altitude 6° (daytime)May 09:00 — altitude 14° (daytime)May 10:00 — altitude 24° (daytime)May 11:00 — altitude 33° (daytime)May 12:00 — altitude 43° (daytime)May 13:00 — altitude 52° (daytime)May 14:00 — altitude 59° (daytime)May 15:00 — altitude 63° (daytime)May 16:00 — altitude 62° (daytime)May 17:00 — altitude 56° (daytime)May 18:00 — altitude 49° (daytime)May 19:00 — altitude 39° (daytime)May 20:00 — altitude 30° (daytime)May 21:00 — altitude 20° (twilight)May 22:00 — altitude 11° (twilight)May 23:00 — altitude 2°May: best around 23:00 localJunJun 00:00 — altitude -15° (twilight)Jun 01:00 — altitude -17° (twilight)Jun 02:00 — altitude -16° (twilight)Jun 03:00 — altitude -14° (twilight)Jun 04:00 — altitude -9° (daytime)Jun 05:00 — altitude -2° (daytime)Jun 06:00 — altitude 6° (daytime)Jun 07:00 — altitude 15° (daytime)Jun 08:00 — altitude 24° (daytime)Jun 09:00 — altitude 34° (daytime)Jun 10:00 — altitude 43° (daytime)Jun 11:00 — altitude 52° (daytime)Jun 12:00 — altitude 59° (daytime)Jun 13:00 — altitude 63° (daytime)Jun 14:00 — altitude 62° (daytime)Jun 15:00 — altitude 56° (daytime)Jun 16:00 — altitude 48° (daytime)Jun 17:00 — altitude 39° (daytime)Jun 18:00 — altitude 29° (daytime)Jun 19:00 — altitude 20° (daytime)Jun 20:00 — altitude 11° (daytime)Jun 21:00 — altitude 2° (twilight)Jun 22:00 — altitude -5° (twilight)Jun 23:00 — altitude -11° (twilight)JulJul 00:00 — altitude -16°Jul 01:00 — altitude -14° (twilight)Jul 02:00 — altitude -9° (twilight)Jul 03:00 — altitude -2° (twilight)Jul 04:00 — altitude 6° (daytime)Jul 05:00 — altitude 14° (daytime)Jul 06:00 — altitude 24° (daytime)Jul 07:00 — altitude 33° (daytime)Jul 08:00 — altitude 43° (daytime)Jul 09:00 — altitude 52° (daytime)Jul 10:00 — altitude 59° (daytime)Jul 11:00 — altitude 63° (daytime)Jul 12:00 — altitude 62° (daytime)Jul 13:00 — altitude 56° (daytime)Jul 14:00 — altitude 49° (daytime)Jul 15:00 — altitude 39° (daytime)Jul 16:00 — altitude 30° (daytime)Jul 17:00 — altitude 20° (daytime)Jul 18:00 — altitude 11° (daytime)Jul 19:00 — altitude 2° (daytime)Jul 20:00 — altitude -5° (daytime)Jul 21:00 — altitude -11° (twilight)Jul 22:00 — altitude -15° (twilight)Jul 23:00 — altitude -17° (twilight)AugAug 00:00 — altitude -9°Aug 01:00 — altitude -2°Aug 02:00 — altitude 6°Aug 03:00 — altitude 15° (twilight)Aug 04:00 — altitude 24° (twilight)Aug 05:00 — altitude 34° (daytime)Aug 06:00 — altitude 43° (daytime)Aug 07:00 — altitude 52° (daytime)Aug 08:00 — altitude 59° (daytime)Aug 09:00 — altitude 63° (daytime)Aug 10:00 — altitude 62° (daytime)Aug 11:00 — altitude 56° (daytime)Aug 12:00 — altitude 48° (daytime)Aug 13:00 — altitude 39° (daytime)Aug 14:00 — altitude 29° (daytime)Aug 15:00 — altitude 20° (daytime)Aug 16:00 — altitude 11° (daytime)Aug 17:00 — altitude 2° (daytime)Aug 18:00 — altitude -5° (daytime)Aug 19:00 — altitude -11° (daytime)Aug 20:00 — altitude -15° (twilight)Aug 21:00 — altitude -17° (twilight)Aug 22:00 — altitude -16°Aug 23:00 — altitude -13°Aug: best around 02:00 localSepSep 00:00 — altitude 6°Sep 01:00 — altitude 15°Sep 02:00 — altitude 24°Sep 03:00 — altitude 34°Sep 04:00 — altitude 44° (twilight)Sep 05:00 — altitude 52° (twilight)Sep 06:00 — altitude 59° (daytime)Sep 07:00 — altitude 63° (daytime)Sep 08:00 — altitude 62° (daytime)Sep 09:00 — altitude 56° (daytime)Sep 10:00 — altitude 48° (daytime)Sep 11:00 — altitude 39° (daytime)Sep 12:00 — altitude 29° (daytime)Sep 13:00 — altitude 20° (daytime)Sep 14:00 — altitude 10° (daytime)Sep 15:00 — altitude 2° (daytime)Sep 16:00 — altitude -5° (daytime)Sep 17:00 — altitude -11° (daytime)Sep 18:00 — altitude -15° (daytime)Sep 19:00 — altitude -17° (twilight)Sep 20:00 — altitude -16° (twilight)Sep 21:00 — altitude -13°Sep 22:00 — altitude -8°Sep 23:00 — altitude -1°Sep: best around 03:00 localOctOct 00:00 — altitude 24°Oct 01:00 — altitude 34°Oct 02:00 — altitude 43°Oct 03:00 — altitude 52°Oct 04:00 — altitude 59°Oct 05:00 — altitude 63° (twilight)Oct 06:00 — altitude 62° (daytime)Oct 07:00 — altitude 56° (daytime)Oct 08:00 — altitude 48° (daytime)Oct 09:00 — altitude 39° (daytime)Oct 10:00 — altitude 29° (daytime)Oct 11:00 — altitude 20° (daytime)Oct 12:00 — altitude 11° (daytime)Oct 13:00 — altitude 2° (daytime)Oct 14:00 — altitude -5° (daytime)Oct 15:00 — altitude -11° (daytime)Oct 16:00 — altitude -15° (daytime)Oct 17:00 — altitude -17° (daytime)Oct 18:00 — altitude -16° (twilight)Oct 19:00 — altitude -13°Oct 20:00 — altitude -8°Oct 21:00 — altitude -2°Oct 22:00 — altitude 6°Oct 23:00 — altitude 15°Oct: best around 04:00 localNovNov 00:00 — altitude 43°Nov 01:00 — altitude 52°Nov 02:00 — altitude 59°Nov 03:00 — altitude 63°Nov 04:00 — altitude 62°Nov 05:00 — altitude 56°Nov 06:00 — altitude 48° (twilight)Nov 07:00 — altitude 39° (daytime)Nov 08:00 — altitude 29° (daytime)Nov 09:00 — altitude 20° (daytime)Nov 10:00 — altitude 10° (daytime)Nov 11:00 — altitude 2° (daytime)Nov 12:00 — altitude -5° (daytime)Nov 13:00 — altitude -11° (daytime)Nov 14:00 — altitude -15° (daytime)Nov 15:00 — altitude -17° (daytime)Nov 16:00 — altitude -16° (daytime)Nov 17:00 — altitude -13° (twilight)Nov 18:00 — altitude -8° (twilight)Nov 19:00 — altitude -1°Nov 20:00 — altitude 7°Nov 21:00 — altitude 16°Nov 22:00 — altitude 25°Nov 23:00 — altitude 35°Nov: best around 03:00 localDecDec 00:00 — altitude 59°Dec 01:00 — altitude 63°Dec 02:00 — altitude 62°Dec 03:00 — altitude 56°Dec 04:00 — altitude 48°Dec 05:00 — altitude 39°Dec 06:00 — altitude 30° (twilight)Dec 07:00 — altitude 20° (twilight)Dec 08:00 — altitude 11° (daytime)Dec 09:00 — altitude 2° (daytime)Dec 10:00 — altitude -5° (daytime)Dec 11:00 — altitude -11° (daytime)Dec 12:00 — altitude -15° (daytime)Dec 13:00 — altitude -17° (daytime)Dec 14:00 — altitude -16° (daytime)Dec 15:00 — altitude -13° (daytime)Dec 16:00 — altitude -8° (daytime)Dec 17:00 — altitude -2° (twilight)Dec 18:00 — altitude 6°Dec 19:00 — altitude 15°Dec 20:00 — altitude 25°Dec 21:00 — altitude 34°Dec 22:00 — altitude 44°Dec 23:00 — altitude 52°Dec: best around 01:00 local
below horizon astronomical dark — low to high altitude twilight daytime (sun up) best night-time hour

Right now

Twilight
Below horizon (-17°)

Upcoming (local)

Rise 08:18
Transit 16:18 63°
Set 00:20

Across the year

Best month February
Peak altitude 63°
Circumpolar here no
Dark-sky hours / year 2100

Neighboring Constellations

Cancer Taurus Orion Auriga

Showpieces in Gemini

6
Messier 35 survey image
Messier 35

NGC 2168

5.3 mag 28. Easy
Castor

HIP 36850; Alpha Gem; 66 Gem

1.98 mag 5.7″ B: 3.0 A1.5IV+ Easy
3 Gem

HIP 29225; 3 Gem

5.75 mag 5.71 - 5.77 ACYG B2.5Ib Medium
Mekbuda

HIP 34088; Zeta Gem; 43 Gem

3.79 mag 3.62 - 4.18 DCEP G1Ib Medium
Eskimo Nebula survey image
Eskimo Nebula

NGC 2392

C39

9.2 mag 0.8 Medium
6 Gem

HIP 29450; 6 Gem

6.39 mag 5.74 - 7.4 SRC M1-2Ia-Iab Easy

Main Stars in Gemini

20
Pollux

HIP 37826; Beta Gem; 78 Gem

1.14 mag 257.5″ B: 10.9 G9III Hard
Alhena

HIP 31681; Gamma Gem; 24 Gem

1.93 mag A1.5IV Easy
Castor

HIP 36850; Alpha Gem; 66 Gem

1.98 mag 5.7″ B: 3.0 A1.5IV+ Easy
Tejat Posterior

HIP 30343; Mu Gem; 13 Gem

2.88 mag 58.7″ B: 11.9 M3IIIab Very Hard
Mebsuta

HIP 32246; Epsilon Gem; 27 Gem

2.98 mag 109.9″ B: 9.6 G9Ib Medium
Propus

HIP 29655; Eta Gem; 7 Gem

3.28 mag 1.9″ B: 6.2 M2IIIa Very Hard
Alzirr

HIP 32362; Xi Gem; 31 Gem

3.36 mag F5IV-V Easy
Wasat

HIP 35550; Delta Gem; 55 Gem

3.53 mag 5.5″ B: 8.2 F2V Fe-0.5 Hard
Kappa Gem

HIP 37740; Kappa Gem; 77 Gem

3.57 mag 7.0″ B: 10.0 G9III Very Hard
Lambda Gem

HIP 35350; Lambda Gem; 54 Gem

3.58 mag 9.7″ B: 10.7 A3V Very Hard
Theta Gem

HIP 33018; Theta Gem; 34 Gem

3.60 mag A2IV Easy
Mekbuda

HIP 34088; Zeta Gem; 43 Gem

3.79 mag 3.62 - 4.18 DCEP G1Ib Medium
Iota Gem

HIP 36046; Iota Gem; 60 Gem

3.79 mag 0.1″ B: 4.7 G9IIIb Easy
Upsilon Gem

HIP 36962; Upsilon Gem; 69 Gem

4.06 mag M0III-IIIb Easy
Nu Gem

HIP 30883; Nu Gem; 18 Gem

4.15 mag B6IIIe Easy
1 Gem

HIP 28734; 1 Gem

4.16 mag 0.2″ B: 5.5 G7III Easy
Rho Gem

HIP 36366; Rho Gem; 62 Gem

4.18 mag 221.6″ B: 11.6 F0V Very Hard
Sigma Gem

HIP 37629; Sigma Gem; 75 Gem

4.28 mag 195.5″ B: 10.8 K1III Hard
Tau Gem

HIP 34693; Tau Gem; 46 Gem

4.41 mag 1.8″ B: 11.0 K2-III Very Hard
30 Gem

HIP 32249; 30 Gem

4.49 mag K0IIICN1Ca1 Easy

Double Stars in Gemini

15
Castor

HIP 36850; Alpha Gem; 66 Gem

1.98 mag 5.7″ B: 3.0 A1.5IV+ Easy
Wasat

HIP 35550; Delta Gem; 55 Gem

3.53 mag 5.5″ B: 8.2 F2V Fe-0.5 Hard
38 Gem

HIP 33202; 38 Gem

4.65 mag 7.4″ B: 7.8 F0Vp Easy
HIP 36690
6.54 mag 11.7″ B: 8.2 K0II-III+F8V Easy
Tejat Posterior

HIP 30343; Mu Gem; 13 Gem

2.88 mag 58.7″ B: 11.9 M3IIIab Very Hard
Pi Gem

HIP 38016; Pi Gem; 80 Gem

5.14 mag 19.0″ B: 11.4 M1IIIa Hard
HIP 36616
5.42 mag 5.6″ B: 10.1 gK2 Hard
Kappa Gem

HIP 37740; Kappa Gem; 77 Gem

3.57 mag 7.0″ B: 10.0 G9III Very Hard
45 Gem

HIP 34440; 45 Gem

5.44 mag 15.9″ B: 10.9 G8III Hard
HR 2366
6.20 mag 7.9″ B: 10.1 K2III Medium
Mebsuta

HIP 32246; Epsilon Gem; 27 Gem

2.98 mag 109.9″ B: 9.6 G9Ib Medium
Lambda Gem

HIP 35350; Lambda Gem; 54 Gem

3.58 mag 9.7″ B: 10.7 A3V Very Hard
Chi Gem

HIP 39424; Chi Gem

4.94 mag 83.6″ B: 11.5 K1.5III Hard
63 Gem

HIP 36238; 63 Gem

5.22 mag 42.7″ B: 10.9 F5V+F5V Hard
Mekbuda

HIP 34088; Zeta Gem; 43 Gem

3.79 mag 3.62 - 4.18 DCEP G1Ib Medium

Variable Stars in Gemini

5
3 Gem

HIP 29225; 3 Gem

5.75 mag 5.71 - 5.77 ACYG B2.5Ib Medium
Mekbuda

HIP 34088; Zeta Gem; 43 Gem

3.79 mag 3.62 - 4.18 DCEP G1Ib Medium
6 Gem

HIP 29450; 6 Gem

6.39 mag 5.74 - 7.4 SRC M1-2Ia-Iab Easy
TV Gem

HIP 29416

6.56 mag 6.27 - 7.50 LC M0-1Iab Easy
TU Gem

HR 9120

7.30 mag 6.88 - 8.0 SRB C Medium

Deep Sky Objects in Gemini

30
Open Cluster (10)
Messier 35 survey image
Messier 35

NGC 2168

5.3 mag 28. Easy
NGC 2331 survey image
NGC 2331
9.0 mag 18. Easy
NGC 2129 survey image
NGC 2129
6.7 mag 7. Easy
NGC 2395 survey image
NGC 2395
8.0 mag 12. Easy
NGC 2420 survey image
NGC 2420
8.3 mag 10. Easy
NGC 2158 survey image
NGC 2158
8.6 mag 5. Easy
NGC 2266 survey image
NGC 2266
10.0 mag 7. Medium
NGC 2304 survey image
NGC 2304
10.0 mag 5. Medium
IC 2157 survey image
IC 2157
8.4 mag 7. Easy
NGC 2355 survey image
NGC 2355
10.0 mag 9. Medium
Galaxy (19)
NGC 2389 survey image
NGC 2389
12.8 mag 2.1 SABc Very Hard
NGC 2370 survey image
NGC 2370
14.0 mag SABb Very Hard
NGC 2435 survey image
NGC 2435
13.0 mag SABa Very Hard
NGC 2449 survey image
NGC 2449
14.0 mag SBab Very Hard
IC 2211 survey image
IC 2211
14.0 mag 0.8 SBa Very Hard
NGC 2379 survey image
NGC 2379
13.5 mag 1.1 S0 Very Hard
NGC 2294 survey image
NGC 2294
15.0 mag 1.1 E Very Hard
NGC 2411 survey image
NGC 2411
14.0 mag S0-a Very Hard
NGC 2454 survey image
NGC 2454
14.0 mag S0-a Very Hard
NGC 2481 survey image
NGC 2481
13.0 mag S0-a Very Hard
IC 2194 survey image
IC 2194
15.0 mag 1.0 S0-a Very Hard
NGC 2490 survey image
NGC 2490
15.0 mag E-S0 Very Hard
IC 2212 survey image
IC 2212
15.0 mag 0.5 S0-a Very Hard
IC 2213 survey image
IC 2213
15.0 mag 0.7 S0-a Very Hard
IC 2196 survey image
IC 2196
14.0 mag 1.5 E Very Hard
NGC 2274 survey image
NGC 2274
13.0 mag E Very Hard
NGC 2398 survey image
NGC 2398
15.0 mag E Very Hard
NGC 2406 survey image
NGC 2406
15.0 mag E Very Hard
NGC 2407 survey image
NGC 2407
15.0 mag E-S0 Very Hard
Planetary Nebula (1)
Eskimo Nebula survey image
Eskimo Nebula

NGC 2392

C39

9.2 mag 0.8 Medium