chi and h site logo

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


Lunar #32: Arago α and β

L53 main image L32 annotated

Accompanying the crater Arago are two domes, α to the north and β to the west. Only at the right phase does the sunlight permit to see these domes.

Image:

  1. The area on 2022-12-12, stacked from 700 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 +80%.
  2. Dto., annotated and with scale.