 | WR 20a is an eclipsing binary star belonging to or recently (0.5 millions years before present) ejected from the young, massive cluster Westerlund 2. It... 10 KB (916 words) - 17:34, 20 September 2023 |
 | List of most luminous stars (redirect from WR 158) et al. (4 March 2005). "The spectrum of the very massive binary system WR 20a (WN6ha + WN6ha): Fundamental parameters and wind interactions". Astronomy... 168 KB (10,338 words) - 16:31, 15 May 2024 |
reliable listed masses are those for the eclipsing binaries NGC 3603-A1, WR 21a, and WR 20a. Masses for all three were obtained from orbital measurements. This... 166 KB (8,662 words) - 16:31, 15 May 2024 |
| although not in the central core. WR 20a, a binary consisting of two WR stars, and the single stars WR 20aa, WR 20b, and WR 20c are all thought to be members... 7 KB (699 words) - 13:32, 26 November 2023 |
 | Douglas A-20 Havoc (redirect from Douglas A-20A Havoc) long-nosed DB-73s, equivalent to the A-20A, in April 1940 and Britain ordering 300 DB-7Bs, again equivalent to the A-20A in February and April 1940. In a report... 53 KB (7,087 words) - 23:09, 27 March 2024 |
 | Northrop F-20 Tigershark (redirect from F-20A Tigershark) D285062 National Museum of the United States Air Force Chuck Yeager in the F-20 (YouTube) (1984) NTM 1F-20A-1 Northrop F-20A Aircraft Utility Flight Manual... 50 KB (6,373 words) - 19:55, 4 May 2024 |
 | novel type of source? Gamma rays from the vicinity of the Wolf-Rayet binary WR 20a". H.E.S.S. High Energy Stereoscopic System. 2006. Retrieved 2023-01-15.... 5 KB (498 words) - 04:19, 14 May 2024 |
10h 44m 10.23s −69° 18′ 18.0″ 13.09 DA2.2+M re-radiating binary system WR 20a V712 10h 23m 58.00s −57° 45′ 49.0″ 13.5 O3If*/WN6+ O3If*/WN6 in Westerlund... 57 KB (401 words) - 18:09, 16 December 2023 |
 | Pratt & Whitney J57 (redirect from Pratt & Whitney J57-P-20A) thrust with water injection J57-P-20 18,000 lbf (80.07 kN) thrust J57-P-20A 18,000 lbf (80.07 kN) thrust J57-P-21 17,000 lbf (75.62 kN) thrust J57-P-23... 20 KB (2,429 words) - 09:54, 25 April 2024 |
20alpha-hydroxysteroid dehydrogenase (redirect from 20a-hydroxysteroid dehydrogenase) 316–21. doi:10.1016/S0021-9258(19)70137-9. PMID 6935192. Wiest WG, Kidwell WR, Balogh K (April 1968). "Progesterone catabolism in the rat ovary: a regulatory... 7 KB (794 words) - 12:51, 26 August 2023 |