A preliminary result, as I will try & add more data the coming clear nights
![](https://i0.wp.com/www.drogenberg.be/wp-content/uploads/2020/03/M51-Esprit120-ASI183mm-4u40m-Meldert-RGB-Ha-F5-JPG.jpg?resize=525%2C619&ssl=1)
M51 in Ursa Maior, about 4,5 hours of imaging, 300-second exposures with the ASI183MM, SX Filterwheel, Baader RGB Ha, SGP with Solve & Sync, Meridian Flip, and the Esprit 120mm F 5,5