Craters Albategnius & Klein on the 7th Lunar day (Georges)

Craters Albategnius & Klein on the 7th Lunar day

Acquisition type: Lucky imaging

Bonjour
Voici ma dernière image de la Lune du 18 Janvier dernier .. Il s'agit des cratères Albategnius & Klein qui se situent au centre de la Lune et proche du Terminator lors de la 7ème lunaison ..
Ce ne fut pas un cratère facile car la mise au point dans ces conditions est difficile à cause de l'intensité lumineuse très différente entre les région Est & Ouest ainsi que du nombre de cratères dans cette région .. Enfin je me suis aperçu qu'avec la barlow 1.6 sur mon VMC, la mise au point sur les cratères lunaires n'est pas du tout la même sur différents sites en fonction de la courbure de la Lune, ce qui complique énormément le focus lorsque les conditions atmosphériques ne sont pas idéales ...

Pour information, le cratère principal Albategnius mesure 136 km de diamètre avec une hauteur de 4527m ..

Les vidéos sont de 180s chacune et faite avec le filtre IR642
Image : Lune de 7 jours
FPS: 80 images/s
Exposure = 12000us
Gain = 200
Nombre d'images totales : ~ 14000 (5% retenues)

image B : image annotée

Comme d'habitude ,n'hésitez pas à m'envoyer vos remarques et commentaires !! ...
A bientôt pour de nouvelles aventures lunaires..
Georges

Hi
Here is my last image of the Moon from January 18th.. These are the craters Albategnius & Klein which are located in the center of the Moon and close to the Terminator during the 7th lunation..
It was not an easy crater because focusing in these conditions is difficult due to the very different light intensity between the East & West regions as well as the number of craters in this region.. Finally I realized that with Barlow 1.6 on my VMC, the focus on the lunar craters is not at all the same on different sites depending on the curvature of the Moon, which greatly complicates the focus when the atmospheric conditions are not ideal ...

For information, the main crater Albategnius measures 136 km in diameter with a height of 4527m..

The videos are 180s each and made with the IR642 filter
Image: 7 day moon
FPS: 80fps
Exposure = 12000us
Gain = 200
Number of total images: ~ 14000 (5% retained)

image B: annotated image

As usual, don't hesitate to send me your comments !! ...
See you soon for new lunar adventures..
Georges

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Description: image annotée

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Astrophotographes (France)
Moon - Lunar closeup
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Craters Albategnius & Klein on the 7th Lunar day

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