 | IC 4756 is a large bright open cluster in the constellation Serpens. Known as Graff's Cluster, it is bright enough to be seen with the naked eye and considered... 5 KB (473 words) - 07:52, 14 May 2023 |
 | post-blue straggler in the open cluster IC 4756 that contains a large excess of lithium. HD 172189, also located in IC 4756, is an Algol variable eclipsing binary... 118 KB (11,793 words) - 11:02, 27 March 2024 |
 | Evolution in Five Intermediate-age Clusters: NGC 2360, 2423, 5822, 6811, and IC 4756". Astronomy and Astrophysics. 273 (1): 61–72. Bibcode:1990A&A...237...61M... 60 KB (6,873 words) - 23:45, 26 February 2024 |
 | 53 45' 3.9 IC 4756 18h 39.0m −05° 27′ Serpens 330 500 40' 4.6 NGC 2516, Southern Beehive Cluster 07h 58.0m −60° 48′ Carina 346 141 30' 3.8 IC 4665 17h 46... 34 KB (1,622 words) - 21:25, 27 March 2024 |
 | NGC NGC 6535 NGC 6539 NGC 6604 NGC 6605 Other IC 4756 Messier 5 Messier 16 Serpens OB2 Serpens South Palomar 5... 4 KB (282 words) - 07:16, 2 July 2023 |
NGC NGC 6535 NGC 6539 NGC 6604 NGC 6605 Other IC 4756 Messier 5 Messier 16 Serpens OB2 Serpens South Palomar 5... 5 KB (421 words) - 15:16, 4 June 2023 |
 | telescopes. NGC 6633 is also known as the Tweedledum Cluster (paired with IC 4756 as Tweedledee), also as the Captain Hook Cluster. It is also designated... 3 KB (289 words) - 09:29, 11 August 2023 |
 | NGC NGC 6535 NGC 6539 NGC 6604 NGC 6605 Other IC 4756 Messier 5 Messier 16 Serpens OB2 Serpens South Palomar 5... 14 KB (1,105 words) - 23:43, 11 March 2024 |
 | MmRAS, 1915 "melotte 20". sim-id. Retrieved 2020-06-24. "ic 1805". sim-id. Retrieved 2020-06-26. "ic 361". sim-id. Retrieved 2020-06-26. "ngc 1857". sim-id... 37 KB (344 words) - 00:25, 23 May 2023 |
 | NGC NGC 6535 NGC 6539 NGC 6604 NGC 6605 Other IC 4756 Messier 5 Messier 16 Serpens OB2 Serpens South Palomar 5... 5 KB (414 words) - 23:07, 15 August 2023 |