Messier 85 (NGC 4382) from my „Jade“ observatory

This is one of the first images with my new equipment on the second pier „Deep Sky Pier“ in my „Jade Observatory“. M85 is a lenticular galaxy in the constellation Coma Berenices.

Data calibration, registration and the final processing was done with PixInsight. The result was as follows:

In this image I have marked all galaxies of the PGC catalog and all quasars with a redshift greater as 2.5.

The most distant quasar of them is:

SDSS J122454.99+185132.5 with a redshift of 3.319 and an apparent mag_v of 19.9 (SDSS DR17).

There are also two asteroids in the image:

• (97065) 1999 VV20 with mag_v=18.7
• (183449) 2003 BU12 with mag_v=17.8

Here is an overview of the used equipment and the exposure times:

• Date: March 2025
• Location: Varel
• Telescope/Lense: 6″ Lacerta Newton
• Focal length [mm]: 600
• Focal ratio: 4
• Mount: Skywatcher EQ 8
• Camera: Lacerta Deepsky 2600 M
• Autoguiding: Off-Axis with ZWO Asi 120 MM Mini
• Filter: L:R:G:B
• Exposure time [min]: 171:75:75:75
• Resolution: 1.31/px