NGC 2903

Introduction | Map | My Best Own Photos | My Own Observations | References || Appendix: My Own Photos

On this page I collect my observations of the spiral galaxy NGC 2903 in the constellation Leo.

Introduction

The spiral galaxy NGC 2903 in the constellation Leo is one of the brighter spiral galaxies. It is unclear why Messier missed it... East of it, there is the spiral galaxy 2916, which is located at a distance of more than 160 million light years from us.

NGC 2903
Size: 12.6′ × 6' (Wikipedia)
Distance: 21/30 million light years (Wikipedia/Stoyan & SkySafari)
Rating: ** (Stoyan)

Map

The spiral galaxy NGC 2903 in the constellation Leo (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)

My Best Own Photos

eVscope

NGC 2903 - Mar 6, 2021		NGC 2903 - Mar 6, 2021		NGC 2903 - Mar 6, 2021
NGC 2903 - Mar 6, 2021, photo on top processed		NGC 2903 - Mar 6, 2021, photo on top processed		NGC 2903 - Mar 6, 2021, photo on top processed

Vespera Pro

NGC 2903 - Mar 6, 2021		NGC 2903 - Mar 6, 2021
NGC 2903 - Mar 6, 2021, photo on top processed		NGC 2903 - Mar 6, 2021, photo on top processed

Vespera Pro

NGC 2903, March 19, 2025 - 2000 (40 min)		NGC 2903, March 19, 2025 - 2000 (40 min), processed
NGC 2903, March 19, 2025 - 2000 (40 min), further processed		NGC 2903, March 19, 2025 - 2000 (40 min), further processed and denoised (PAI)
		Evaluation with nova.astrometry.net, to the left, there is NGC 2916

My Own Observations

Observations March/April 2020

• March 14 and 22, 2020 (Mühlhausen/Kraichgau: eVscope): NGC 2903 photographed
• April 23, 2020 (Mühlhausen/Kraichgau: eVscope): NGC 2903 photographed (no overlay, rectangular format)
• April 23, 2020 (Mühlhausen/Kraichgau: C8): NGC 2903 observed, very faint (comparison with eVscope)

Observations March 2021

• March 6, 2021 (Mühlhausen/Kraichgau: eVscope): NGC 2903 photographed in the new rectangular format without overlay, exposed manually

Observations March 2022

• March 20, 2022 (Mühlhausen/Kraichgau: eVscope 2): NGC 2903 photographed (app version 1.5)

Observations March 2025

• March 19, 2025 (Mühlhausen/Kraichgau: Vespera Pro): NGC 2903 photographed (40 min)

References

• NGC 2903 (Wikipedia): en.wikipedia.org/wiki/NGC_2903
• NGC 2916 (Wikipedia): de.wikipedia.org/wiki/NGC_2916 (in German)

On this Site

• Celestron C8 OTA Information (8" Schmidt-Cassegrain)
• Sky-Watcher AZ4 Mount Information
• Unistellar eVscope Information
• Unistellar eVscope 2 Information
• Vaonis Vespera Pro - Information

Appendix: My Own Photos

eVscope

NGC 2903 - Mar 14, 2020		NGC 2903 - Mar 14, 2020, photo left processed		NGC 2903 - Apr 23, 2020
NGC 2903 - Mar 22, 2020		NGC 2903 - Mar 22, 2020, photo left processed		NGC 2903 - Apr 23, 2020, photo on top processed
NGC 2903 - Mar 6, 2021		NGC 2903 - Mar 6, 2021		NGC 2903 - Mar 6, 2021
NGC 2903 - Mar 6, 2021, photo on top processed		NGC 2903 - Mar 6, 2021, photo on top processed		NGC 2903 - Mar 6, 2021, photo on top processed

eVscope 2

NGC 2903 - Mar 20, 2022		NGC 2903 - Mar 20, 2022, photo left processed

Vespera Pro

NGC 2903, March 19, 2025 - 2000 (40 min)		NGC 2903, March 19, 2025 - 2000 (40 min), processed
NGC 2903, March 19, 2025 - 2000 (40 min), further processed		NGC 2903, March 19, 2025 - 2000 (40 min), further processed and denoised (PAI)
		Evaluation with nova.astrometry.net, to the left, there is NGC 2916