NGC 61 [SEP] constellation
NGC 61
NGC 61 is a pair of lenticular galaxies, NGC 61-A (or NGC 61-1) and NGC 61-B (or NGC 61-2) in the constellation Cetus.
Both were discovered on September 10, 1785 by William Herschel.
External links.
- NASA/IPAC Extragalactic Database
- SEDS
) and 60 (11)
In the list of Fortunate numbers, 61 occurs thrice, since adding 61 to either the tenth, twelfth or seventeenth primorial gives a prime number (namely 6,469,693,291; 7,420,738,134,871; and 1,922,760,350,154,212,639,131).
In science.
- The chemical element with the atomic number 61 is promethium.
In science Astronomy.
- Messier object M61, a magnitude 10.5 galaxy in the constellation Virgo
- The New General Catalogue object NGC 61, a double spiral galaxy in the constellation Pisces
- 61