chi and h site logo

{ Practical astronomy | Astronomy | The Moon
  | The physical Moon | The Lunar 100 }


Lunar #81: Hesiodus A

L81 main image L81 annotated

On the southern shore of Mare Nubium lies the large crater Pitatus. Next to it lies Hesiodus, with a flat floor and small crater at its centre. Hesiodus A is a 14 km diameter double crater to its Southwest, double meaning that the crater has a concentric crater inside about half the diameter of the outer crater. From the NW boundary of Hesiodus starts the 300 km long and 3 km wide Rima Hesiodus, of which only half is included in the image here.

Images:

  1. The area on 2022-02-11, stacked from 659 video frames taken with a Schmidt-Cassegrain reflector of D = 200 mm and f = 3500 mm and Canon EOS 600Dα camera. Wavelet sharpening. The phase was +78%.
  2. Dto., annotated and with scale.