Craters Copernicus and Eratosthenes, Montes Carpatus and the Hortensius Domes
August 18, 2021
The crater pair of Copernicus (center bottom) and Eratosthenes (center right) become prominent in the Moon's middle latitudes in the days following the First Quarter Moon. Here they are seen in high angle light, their floors fully or nearly fully illuminated. There is enough shadow for the multitude of secondary craterlets surrounding them to be detected. These can be seen to radiate deeply into Mare Imbrium, the broad lava plain that fills the upper third of the image.
Separating Copernicus and Mare Imbrium are the peaks of the Montes Carpatus. These mountains are remnants of the high rim of the Imbrium Impact Basin.
On the bottom left edge of the photo lies a small cup-shaped crater named Hortensius. Just above this small crater a cluster of small bumps can be seen. These low mounds are lunar volcanoes, the Hortensius Domes. Look closely and the summit calderas of some can be seen. These humble mounds are the lunar equivalent of the large shield volcanoes (e.g., Mauna Loa) seen on the Earth.
This photo is a stack of the best 30% of 5369 video frames.
Video capture software: FireCapture
Stacking software: AutoStakkert! 3
Wavelets-processing: Registax 6
Final buff: Photoshop CC 2021.
Celestron EdgeHD8, 2032mm focal length, f/10
ZWO ASI 290MM planetary camera
Celestron Advanced VX Equatorial Mount
Craters Copernicus and Eratosthenes, Montes Carpatus and the Hortensius Domes
August 18, 2021
The crater pair of Copernicus (center bottom) and Eratosthenes (center right) become prominent in the Moon's middle latitudes in the days following the First Quarter Moon. Here they are seen in high angle light, their floors fully or nearly fully illuminated. There is enough shadow for the multitude of secondary craterlets surrounding them to be detected. These can be seen to radiate deeply into Mare Imbrium, the broad lava plain that fills the upper third of the image.
Separating Copernicus and Mare Imbrium are the peaks of the Montes Carpatus. These mountains are remnants of the high rim of the Imbrium Impact Basin.
On the bottom left edge of the photo lies a small cup-shaped crater named Hortensius. Just above this small crater a cluster of small bumps can be seen. These low mounds are lunar volcanoes, the Hortensius Domes. Look closely and the summit calderas of some can be seen. These humble mounds are the lunar equivalent of the large shield volcanoes (e.g., Mauna Loa) seen on the Earth.
This photo is a stack of the best 30% of 5369 video frames.
Video capture software: FireCapture
Stacking software: AutoStakkert! 3
Wavelets-processing: Registax 6
Final buff: Photoshop CC 2021.
Celestron EdgeHD8, 2032mm focal length, f/10
ZWO ASI 290MM planetary camera
Celestron Advanced VX Equatorial Mount