SNR G65.3+5.7 — The Faint Supernova Complex in Cygnus

Image Title: SNR G65.3+5.7 (Sh2-91 - 94 - 96)

Copyright: Lino Benz

Date image was taken: September 19, 2025

Location: Sannicola LE Italy

Data Acquisition Method: Personal Telescope Setup

Description and Details: SNR G65.3+5.7 (Sh2-91 - 94 - 96)

SNR G65.3+5.7 is a faint and diffuse supernova remnant located in the constellation Cygnus, which includes part of the region cataloged as Sh2-91, Sh2-94, and Sh2-96. It is a difficult target due to its low surface brightness and background stellar density (I had to recalibrate these), but it is visible with wide-field instruments and appropriate filters. Its angular size is approximately 3 x 4 degrees, similar to that of the more famous Veil Nebula in Cygnus. It appears as a series of nebulous filaments, with a predominance of OIII (triply ionized oxygen) emissions and a faint H-alpha signal. It is estimated to be between 20,000 and 25,000 years old and is located approximately 2,600–3,200 light-years from Earth.

Askar FMA180 Pro

ToupTek Astronomy Cameras ATR2600C

Light 248*300" 20 hours and 40 minutes
Svbony SV220 Dual Band 7nm

Phd2 Guide

Sky-Watcher EQ6-r Pro

N.I.N.A. Acquisition

DSS Sum Processed by Pixinsight, Photoshop

Taken September 17, 18, 19, 20, 2025
Sannicola (LE), Italy
SQM 19.48

Best Resolution
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Name: Lino Benz

Website or Facebook Profile: https://www.flickr.com/photos/191152007@N04/54802133518/in/dateposted-public/