Craters Theophilus, Cyrillus and Catharina near Mare Nectaris (Davide Mascoli)

Craters Theophilus, Cyrillus and Catharina near Mare Nectaris

Hello!

I like to share this result obtained just few days ago, on 16th of March on the Moon, roughly at 45% of its illumination from the Sun and near its first quarter.
It is the region near Mare Nectaris with the main craters Theophilus, Cyrillus and Catharina in the Sun rays so grazing, the latters allowing to show lot of their features as in a game of shadows and lights!
All of the three main pretty circular craters have a diameter of almost 100 kms with a depth of 3 kms roughly.
It is impressive the flat floor of Theophilus with a multiple peaks in its center with height 2 kms above the floor and so already in the Sun light with respect other regions of the crater.
A remarkable aspect is the floor of Cyrillus, very different with respect the floor of Theophilus, appearing more irregular.
Catharina appears less prominent in its borders with respect Theophilus and Cyrillus, denoting the erosion activity due to its ancient age.

After several days with clouds a clear night; seeing was almost good as the live image appeared sometime very calm, so I decided to collect frames.
Of course always a huge emotions to appreciate features as in a fly-by during the recording!

In the setup I combined a C8 Edge HD, together with a super luminos 2.5 barlow, and a IR pass filter (642).
Here other details and the video settings:

- age of the Moon, 7 days (45% of illumination)
- 10664 frames with ASI120MM at 6:25 pm UT (5% of the frames retained)
- ROI=1936x1096
- Gain=125 (20%)
- Shutter=9.638ms
- FPS (avg.)=33

For the stacking in Autostakker I retained 5% of the total frames acquired with FireCapture.
Then post processed with Registax, PixInsight and Photoshop.

Any comment is much appreciated,
Davide.

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