# M13-Hamois-26-04-2025-Luc-Viatour

- By: Lviatour
- Date: 2025-04-16
- Classification: Photograph
- Credit line: Own work, www.lucnix.be
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:M13-Hamois-26-04-2025-Luc-Viatour.jpg)
- Rights: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0)
- Picture: https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/M13-Hamois-26-04-2025-Luc-Viatour.jpg/1920px-M13-Hamois-26-04-2025-Luc-Viatour.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Located in the constellation Hercules about 22,200 light-years from Earth, M13 (or the Great Globular Cluster in Hercules) packs several hundred thousand ancient stars into a diameter of roughly 145 light-years. Within the same field of view, one can observe NGC 6207, a beautiful spiral galaxy located much farther away, about 46 million light-years distant. By carefully examining the space between the cluster and this galaxy, one can also distinguish IC 4617, a tiny spiral galaxy lost in the depths of the distant universe, over 500 million light-years away. The bright orange star in the middle is TYC2588-2833-1, and the bright white star in the right is HD 150679.

Acquisition details:

Camera: Modified Nikon Z7 (45MP 14-bit)

Optics: Skywatcher Esprit 120ED refractor

Focal length: 861 mm drizzle x2

Mount: Skywatcher Wave 150i equatorial mount

Filter: IDAS LPS-P3

Exposure: 00h42' (42x60s) at ISO 800

Guiding: Acuter 80/400mm guide scope with ASI678MM guide camera

Processing: Pixinsight (RCAstro suite), darktable and GIMP on Linux