Image of the day 09/10/2023

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A comet wanders between Cygnus and Cepheus, Yann Sainty
A comet wanders between Cygnus and Cepheus, Yann Sainty

A comet wanders between Cygnus and Cepheus

Image of the day 09/10/2023

Getting plate-solving status, please wait...
A comet wanders between Cygnus and Cepheus, Yann Sainty
A comet wanders between Cygnus and Cepheus, Yann Sainty

A comet wanders between Cygnus and Cepheus

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Description

Here's an image that was a great challenge, both in terms of acquisition and processing.

It's a mosaic made up of 15 panels.

There are only about twenty minutes of exposure per panel, but thanks to the Optolong L-Extreme filter for F2 we were able to acquire enough signal quickly.

Comet C/2023 E1 (ATLAS) lies towards the center of the image, and its typical green color is well highlighted by the high concentration of Alpha Hydrogen in this region of the Milky Way.

Important note:
Oiii areas that are very faint, such as WR134 or OU4, were added from sessions made with our other setups and long exposure times, so the image is a composition of the HOO mosaic with Oiii areas from other projects.

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    A comet wanders between Cygnus and Cepheus, Yann Sainty
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    A comet wanders between Cygnus and Cepheus, Yann Sainty
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A comet wanders between Cygnus and Cepheus, Yann Sainty