Neison

Lat: 68.21°N, Long: 24.99°E, Diam: 51.03 km, Depth: 1.2 km, Rükl: 5, pre-Nectarian?

LO-IV-104H A small part of 77-km diameter Meton C is visible in the upper left corner.

Images

IAU page: Neison
Depth data from Kurt Fisher database
- Westfall, 2000: 1.6 km
- Cherrington, 1969: 2.4 km
Measures on LRO QuickMap give ave depth about 1.2 km
The shadow in LO-IV-104H indicates the east rim of Neison is 1250-1400 km above the flat floor (increasing to the south). The ring around Meton C is of similar elevation at its highest points. 9-km diameter Neison A (on the southeast rim) is also a little over 1200 m deep.

Named for Edmund Neison (pseudonym) (1849-1940), a British astronomer and selenographer who published the classic reference, The Moon, in 1876. Nevill spent most of his professional life at the Natal Observatory in South Africa, where the largest telescope was an 8-inch Grubb refractor. See the Astronomical Society of South Africa's biography of him for further details.
- Neison's personal With-Browning reflector, later owned by Elger, Walter Goodacre, H. P. Wilkins and Robert Garfinkle.

Named by Lamèch (Whitaker, p 228), Neison was part of the original IAU nomenclature of Named Lunar Formations.

Jones, H. Spencer. 1941. Edmund Neville NevillMonthly Notices of the Royal Astronomical Society, Vol. 101, pp. 137-139.
Moore, Patrick. 1964/5. E. N. N. Nevill: 'Edmund Neison'. Journal of the British Astronomical Association 75 (4) pp. 223-227. (with illustrations on pp. 328-330)

- In Mysterious Universe, a handbook of astronomical anomalies (1979) :

Page 205: Three Riddles of Plato (Jackson T. Carle, Sky and Telescope, 1955).
Page 236: The Moon - Mare Crisium (Jas. D. Hardy, Journal of the British Astronomical Association, 1897).
Page 460: An Occultation Phenomenon (Edwin Holmes, Journal of the British Astronomical Association, 1903). Note: this occultation is Jupiter-related (the Galilean satellites).