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Celestial reference

Objects

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

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NGC 6616 Galaxy

Her Mag 15.120 1.4′ × 0.6′ 18h 17m 41s · +22° 14′ 18″

NGC 6617 Galaxy

Dra Mag 15.560 0.9′ × 0.5′ 18h 14m 3s · +61° 19′ 10″

NGC 6619 Galaxy

Her Mag 14.260 1.4′ × 0.9′ 18h 18m 56s · +23° 39′ 20″

NGC 662 Galaxy

And Mag 13.840 0.8′ × 0.6′ 01h 44m 35s · +37° 41′ 45″

NGC 6620 Planetary Nebula

Sgr Mag 12.700 0.1′ 18h 22m 54s · -26° 49′ 18″

NGC 6621 Galaxy

6621N, NGC 6621

Dra Mag 13.410 2.2′ × 0.9′ 18h 12m 55s · +68° 21′ 48″

NGC 6622 Galaxy

6621S, NGC 6622

Dra Mag 14.080 1.0′ × 0.9′ 18h 13m 0s · +68° 21′ 14″

NGC 6623 Galaxy

Her 1.3′ 18h 19m 43s · +23° 42′ 20″

NGC 6624 Globular Cluster

Sgr 3.3′ 18h 23m 41s · -30° 21′ 41″

NGC 6625 Open Cluster

Sct Mag 9.000 6.0′ 18h 22m 47s · -11° 57′ 18″

NGC 6627 Galaxy

Her Mag 13.320 1.1′ × 1.0′ 18h 22m 39s · +15° 41′ 53″

NGC 6628 Galaxy

Her Mag 14.720 1.5′ × 0.9′ 18h 22m 22s · +23° 28′ 43″

NGC 6629 Planetary Nebula

Sgr Mag 11.300 0.3′ 18h 25m 42s · -23° 12′ 10″

NGC 663 Open Cluster

C 010, C 10, Caldwell 10, MWSC 0139, NGC 663

Cas Mag 7.100 6.0′ 01h 46m 16s · +61° 13′ 5″

NGC 6630 Galaxy

Pav Mag 13.910 0.8′ × 0.7′ 18h 32m 35s · -63° 17′ 36″

NGC 6631 Open Cluster

Sct Mag 11.700 5.7′ 18h 27m 11s · -12° 01′ 52″

NGC 6632 Galaxy

Her Mag 12.150 2.4′ × 1.2′ 18h 25m 3s · +27° 32′ 7″

NGC 6633 Open Cluster

Oph Mag 4.600 12.0′ 18h 27m 15s · +06° 30′ 30″

Sgr 18h 31m 23s · -32° 20′ 53″

NGC 6635 Galaxy

Her Mag 13.400 1.1′ × 1.0′ 18h 27m 37s · +14° 49′ 9″

NGC 6636 Galaxy

Dra 2.2′ 18h 22m 3s · +66° 37′ 13″

NGC 6638 Globular Cluster

Sgr Mag 9.680 4.2′ 18h 30m 56s · -25° 29′ 47″

NGC 6639 Open Cluster

Sct 6.0′ 18h 30m 59s · -13° 09′ 21″

NGC 664 Galaxy

Psc Mag 13.840 1.2′ × 0.9′ 01h 43m 46s · +04° 13′ 22″

NGC 6640 Galaxy

Lyr Mag 14.160 0.8′ × 0.2′ 18h 28m 8s · +34° 18′ 10″

NGC 6641 Galaxy

Her Mag 14.250 0.9′ × 0.8′ 18h 28m 57s · +22° 54′ 11″

NGC 6642 Globular Cluster

Sgr Mag 10.240 3.9′ 18h 31m 54s · -23° 28′ 34″

NGC 6643 Galaxy

Dra Mag 11.110 3.3′ × 1.6′ 18h 19m 46s · +74° 34′ 6″

NGC 6644 Planetary Nebula

Sgr Mag 10.700 0.0′ 18h 32m 35s · -25° 07′ 46″

NGC 6645 Open Cluster

Sgr Mag 8.500 5.4′ 18h 32m 38s · -16° 53′ 2″

NGC 6646 Galaxy

Lyr Mag 12.640 1.5′ × 1.3′ 18h 29m 39s · +39° 51′ 55″

NGC 6647 Open Cluster

Sgr Mag 8.000 3.6′ 18h 32m 49s · -17° 13′ 43″

Dra 18h 25m 38s · +64° 58′ 34″

NGC 6649 Open Cluster

Sct Mag 8.900 5.6′ 18h 33m 28s · -10° 24′ 10″

NGC 665 Galaxy

Psc Mag 12.140 1.6′ × 1.0′ 01h 44m 56s · +10° 25′ 23″

NGC 6650 Galaxy

Dra Mag 14.600 0.7′ × 0.7′ 18h 25m 28s · +68° 00′ 21″

NGC 6651 Galaxy

Dra Mag 13.630 1.3′ × 0.7′ 18h 24m 20s · +71° 36′ 7″

NGC 6652 Globular Cluster

Sgr Mag 9.750 5.1′ 18h 35m 46s · -32° 59′ 25″

NGC 6653 Galaxy

Pav Mag 13.390 1.6′ × 1.4′ 18h 44m 38s · -73° 15′ 48″

NGC 6654 Galaxy

Dra Mag 11.840 2.9′ × 2.2′ 18h 24m 8s · +73° 11′ 0″

NGC 6654A Galaxy

Dra Mag 13.490 2.1′ × 0.4′ 18h 39m 25s · +73° 34′ 47″

NGC 6655 Double Star

Sct 18h 34m 31s · -05° 55′ 15″

NGC 6657 Galaxy

Lyr Mag 14.170 0.8′ × 0.4′ 18h 33m 1s · +34° 03′ 38″

NGC 6658 Galaxy

Her Mag 11.800 1.5′ × 0.3′ 18h 33m 56s · +22° 53′ 18″

NGC 6659 Open Cluster

Her 5.4′ 18h 34m 0s · +23° 35′ 42″

NGC 666 Galaxy

Tri Mag 13.370 0.8′ × 0.5′ 01h 46m 6s · +34° 22′ 28″

NGC 6660 Galaxy

Her Mag 12.360 2.0′ × 1.1′ 18h 34m 37s · +22° 54′ 35″

Her 18h 34m 37s · +22° 54′ 35″