Your corner of the universe.

Celestial reference

Objects

Canonical object pages connect reference data with your own observing history and the community’s astronomy records.

Explore the sky before you joinObject reference pages are public. Sign in or create an account to save targets, record observations and receive visibility alerts.

Sign in Create account

M1 Supernova Remnant

Tau Mag 8.400 8.0′ × 4.0′ 05h 34m 32s · +22° 00′ 52″

M10 Globular Cluster

Oph Mag 4.980 9.3′ 16h 57m 9s · -04° 05′ 58″

M100 Galaxy

M 100, NGC 4321

Com Mag 9.470 6.1′ × 5.6′ 12h 22m 55s · +15° 49′ 19″

M101 Galaxy

M 101, NGC 5457

UMa Mag 7.900 24.0′ × 23.1′ 14h 03m 13s · +54° 20′ 56″

M102 Galaxy

15h 06m 30s · +55° 45′ 48″

M103 Open Cluster

Cas Mag 7.400 4.5′ 01h 33m 22s · +60° 39′ 29″

M104 Galaxy

M 104, NGC 4594

Vir Mag 8.590 8.5′ × 4.9′ 12h 39m 59s · -11° 37′ 23″

M105 Galaxy

M 105, NGC 3379

Leo Mag 9.270 4.9′ × 4.3′ 10h 47m 50s · +12° 34′ 54″

M106 Galaxy

M 106, NGC 4258

CVn Mag 9.290 17.0′ × 7.2′ 12h 18m 57s · +47° 18′ 14″

M107 Globular Cluster

M 107, NGC 6171

Oph Mag 8.850 7.8′ 16h 32m 32s · -13° 03′ 13″

M108 Galaxy

M 108, NGC 3556

UMa Mag 10.050 4.0′ × 1.7′ 11h 11m 31s · +55° 40′ 27″

M109 Galaxy

M 109, NGC 3992

UMa Mag 9.880 8.1′ × 5.6′ 11h 57m 36s · +53° 22′ 28″

M11 Open Cluster

Sct Mag 5.800 9.0′ 18h 51m 6s · -06° 16′ 12″

M110 Galaxy

And Mag 8.150 16.2′ × 9.6′ 00h 40m 22s · +41° 41′ 7″

M12 Globular Cluster

Oph Mag 6.070 11.1′ 16h 47m 15s · -01° 56′ 52″

M13 Globular Cluster

Her Mag 5.800 16.5′ 16h 41m 42s · +36° 27′ 41″

M14 Globular Cluster

Oph Mag 5.730 9.9′ 17h 37m 36s · -03° 14′ 45″

M15 Globular Cluster

Peg Mag 6.300 11.1′ 21h 29m 58s · +12° 10′ 1″

Se2 Mag 6.000 120.0′ × 25.0′ 18h 18m 48s · -13° 48′ 26″

Sgr Mag 7.000 12.6′ 18h 20m 47s · -16° 10′ 18″

M18 Open Cluster

Sgr Mag 6.900 6.0′ 18h 19m 58s · -17° 06′ 7″

M19 Globular Cluster

Oph Mag 5.570 7.5′ 17h 02m 38s · -26° 16′ 5″

M2 Globular Cluster

Aqr Mag 6.250 8.4′ 21h 33m 27s · -00° 49′ 24″

Sgr Mag 8.500 28.0′ × 28.0′ 18h 02m 42s · -22° 58′ 19″

M21 Open Cluster

Sgr Mag 5.900 6.0′ 18h 04m 13s · -22° 29′ 24″

M22 Globular Cluster

Sgr Mag 6.170 12.6′ 18h 36m 24s · -23° 54′ 12″

M23 Open Cluster

Sgr Mag 5.500 16.8′ 17h 57m 5s · -18° 59′ 7″

M24 Stellar Association

Sgr Mag 4.500 120.0′ × 60.0′ 18h 16m 56s · -18° 30′ 52″

M25 Open Cluster

Sgr Mag 4.600 14.1′ 18h 31m 47s · -19° 06′ 54″

M26 Open Cluster

Sct Mag 8.870 6.0′ 18h 45m 19s · -09° 23′ 1″

M27 Planetary Nebula

Vul Mag 7.400 6.7′ 19h 59m 36s · +22° 43′ 16″

M28 Globular Cluster

Sgr Mag 6.900 5.1′ 18h 24m 33s · -24° 52′ 11″

M29 Open Cluster

Cyg Mag 6.600 3.6′ 20h 23m 58s · +38° 30′ 28″

M3 Globular Cluster

CVn Mag 6.390 16.2′ 13h 42m 11s · +28° 22′ 32″

M30 Globular Cluster

Cap Mag 7.100 9.0′ 21h 40m 22s · -23° 10′ 45″

And Mag 3.440 177.8′ × 69.7′ 00h 42m 44s · +41° 16′ 9″

And Mag 8.130 7.7′ × 4.9′ 00h 42m 42s · +40° 51′ 55″

Tri Mag 5.790 62.1′ × 36.7′ 01h 33m 51s · +30° 39′ 37″

M34 Open Cluster

Per Mag 5.200 22.5′ 02h 42m 7s · +42° 44′ 46″

M35 Open Cluster

Gem Mag 5.100 24.0′ 06h 09m 5s · +24° 20′ 19″

M36 Open Cluster

Aur Mag 6.000 7.2′ 05h 36m 18s · +34° 08′ 27″

M37 Open Cluster

Aur Mag 5.600 11.4′ 05h 52m 18s · +32° 33′ 11″

M38 Open Cluster

Aur Mag 6.400 9.6′ 05h 28m 42s · +35° 51′ 18″

M39 Open Cluster

Cyg Mag 4.600 19.5′ 21h 31m 48s · +48° 26′ 17″

M4 Globular Cluster

Sco Mag 5.400 28.2′ 16h 23m 35s · -26° 31′ 32″

12h 22m 12s · +58° 05′ 0″

M41 Open Cluster

CMa Mag 4.500 12.0′ 06h 46m 0s · -20° 45′ 15″

M42 Cluster Nebula

Ori Mag 4.000 90.0′ × 60.0′ 05h 35m 16s · -05° 23′ 23″