Visualization of moon distance variation and libration
Posted: Wed Nov 24, 2021 6:24 pm
Had some fun with 2 captures I made of a 93% waning moon on 31 January 2021 and on 22 November 2021.
The full 5000px version of 22 November can be found here: https://i.ibb.co/LvDPyrh/maan-22nov-93.jpg
The captures were made with the same equipment (Meade LX200 8" f/10 ACF with Zwo ASI071MC Pro) at the same location, so I could compare everything very well.
I did use the Virtual Moon Atlas for the data and checking of orientation and size.
I made an animated GIF of the libration. I can explain that all here but this is way better and clearer: https://en.wikipedia.org/wiki/Libration
To show it clearly I made the 2 captures the same size cause as you can see in the image below, the moon was bigger/closer on 22 November then that it was on 31 January.
And here the 2 captures besides each other for comparison of size at different distances.
The full 5000px version of 22 November can be found here: https://i.ibb.co/LvDPyrh/maan-22nov-93.jpg
The captures were made with the same equipment (Meade LX200 8" f/10 ACF with Zwo ASI071MC Pro) at the same location, so I could compare everything very well.
I did use the Virtual Moon Atlas for the data and checking of orientation and size.
I made an animated GIF of the libration. I can explain that all here but this is way better and clearer: https://en.wikipedia.org/wiki/Libration
To show it clearly I made the 2 captures the same size cause as you can see in the image below, the moon was bigger/closer on 22 November then that it was on 31 January.
And here the 2 captures besides each other for comparison of size at different distances.