Messier 105 (M 105), NGC 3384, NGC 3389

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

On this page I collect my observations of the elliptical galaxy M 105 (NGC 3379) in the constellation Leo as well as of the two galaxies NGC 3384 (elliptical) and NGC 3389 (spiral).

Introduction

The elliptic galaxy M 105 in the constellation Leo is bright and can be seen together with the galaxies NGC 3384 (elliptical, physical companion of M 105) and the smaller NGC 3389 (spiral, far in the background) in the same field of view in the eVscope. All three galaxies form a trio of galaxies in the Leo I galaxy group (or M 96 group), which also includes M 95 and M 96.

M 105 (NGC 3379)	NGC 3384	NGC 3389
Size: 4.9' × 4.3' (SkySafari Distance: 40 million light years (Stoyan) Rating: * (Stoyan)	Size: 5.2' x 2.4' (SkySafari) Distance: 40 million light years (Stoyan) Rating: * (Stoyan)	Size: 2.7' x 1.2' (SkySafari) Distance: 54 million light years (Wikipedia) Rating: ---

IC 643
Size: 0.6' x 0.2' (Wikipedia) Distance: 309 million light years (Wikipedia) Rating: ---

Map

The elliptical galaxy M 105 in the constellation Leo (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)

The elliptical galaxy M 105 in the constellation Leo with the two galaxies NGC 3384 and NGC 3389 forms the galaxy trio in the galaxy group Leo I, which also includes M 95 and M 96. (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)

My Best Own Photos

Atik Infinity & C5 (April 4, 2021)


M 105 (+ NGC 3384 und NGC 3389) - Apr 4, 2021		M 105 (+ NGC 3384 und NGC 3389) - Apr 4, 2021, processed		M 105 (+ NGC 3384 und NGC 3389) - Apr 4, 2021, processed (Polarr)

ZWO ASI224 at Omegon PS 72/432


M 105 (+ NGC 3384 und NGC 3389) - Apr 13, 2021 - 17 frames, 10 s, gain 300		M 105 (+ NGC 3384 und NGC 3389) - Apr 13, 2021 - 17 frames, 10 s, gain 300, processed

eVscope


M 105 (+ NGC 3384 und NGC 3389) - Mar 22, 2020	M 105 (+ NGC 3384 und NGC 3389) - Mar 22, 2020	M 105 (+ NGC 3384 und NGC 3389) - Mar 22, 2020

M 105 (+ NGC 3384 und NGC 3389) - Mar 22, 2020, photo above processed	M 105 (+ NGC 3384 und NGC 3389) - Mar 22, 2020, photo above processed	M 105 (+ NGC 3384 und NGC 3389) - Mar 22, 2020, photo above processed

M 105 (+ NGC 3384 und NGC 3389) - Mar 7, 2021	M 105 (+ NGC 3384 und NGC 3389) - Mar 8, 2021	M 105 (+ NGC 3384 und NGC 3389) - Mar 8, 2021

M 105 (+ NGC 3384 und NGC 3389) - Mar 7, 2021, photo above processed	M 105 (+ NGC 3384 und NGC 3389) - Mar 8, 2021, photo above processed	M 105 (+ NGC 3384 und NGC 3389) - Mar 8, 2021, photo above processed

Vespera


M 95, M 96, M 105 and more, May 31, 2023 - mosaic, processed, large, 2310s		Evaluation with nova.astrometry.net

Small galaxies in the mosaic: IC 643, NGC 3345, NGC 3384, NGC 3389 (see evaluation)

Vespera Pro


M 95, M 96, M 105, and more, May 10, 2024 - mosaic, 2000p, 2940s		M 95, M 96, M 105, and more, May 10, 2024 - mosaic, processed, 2000p, 2940s

Observed sky region shown in Singularity		Evaluation with nova.astrometry.net
Small galaxies in the mosaic: IC 643, IC 648, NGC 3345, NGC 3384, NGC 3389, NGC 3412, NGC 3419, NGC 3367, NGC 3377, NGC 3357, NGC 3391, NGC 3338 (see evaluation)

M 95, M 96, M 105, and more, Feb 19, 2025 - 2000p, 30 min		M 95, M 96, M 105, and more, Feb 19, 2025 - 2000p, 30 min, processed

M 95, M 96, M 105, and more, Feb 19, 2025 - 2000p, 30 min, TIFF processed and denoised (PAI)		Evaluation with nova.astrometry.net
Small galaxies in the mosaic: IC 643,NGC 3345, NGC 3384, NGC 3389 (see evaluation)

My Own Observations

Observations March/April 2020

March 13, 22, and 25, 2020 (Mühlhausen/Kraichgau: eVscope): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389.
April 22, 2020 (Mühlhausen/Kraichgau: eVscope): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (no overlay, rectangular format).

Observations March to June 2021

March 7, 2021 (Mühlhausen/Kraichgau: eVscope): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (r.f., n.o.), eVscope defocused, photos discarded
March 7, 2021 (Mühlhausen/Kraichgau: eVscope): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (r.f., n.o.), exposed manually
April 4, 2021 (Mühlhausen/Kraichgau: C5 on AZ-GTi-EQ, Atik Infinity ): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389
April 13, 2021 (Mühlhausen/Kraichgau: PS72 on AZ-GTi, ASI224): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (10 seconds); stars a little bloated
June 1, 2021 (Mühlhausen/Kraichgau: eVscope): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (n.o., r.f.), new image size and processing.

Observations March to April 2022

March 20, 2022 (Mühlhausen/Kraichgau: eVscope 2): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (app version 1.5)
April 10, 2022 (Mühlhausen/Kraichgau: eVscope 2): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (app version 1.5)
April 17, 2022 (Mühlhausen/Kraichgau: eVscope 2): M 105 photographed together with the two galaxies NGC 3384 and NGC 3389 (app version 1.5)

Observations May 2023

May 30, 2023 (Mühlhausen/Kraichgau: Vespera): M 105 photographed together with the two galaxies M 95 and M 96 and many small galaxies (large mosaic)
Mai 31, 2023 (Mühlhausen/Kraichgau: Vespera): M 105 photographed together with the two galaxies M 95 and M 96 and three small galaxies (NGC 3384, NGC 3389, IC 643) (medium-size mosaic)

Observations May 2024

May 10, 2024 (Mühlhausen/Kraichgau: Vespera Pro): M 105 photographed together with the two galaxies M 95 and M 96 and many small galaxies (mosaic)

Observations February 2025

February 19, 2025 (Erkerode: Vespera Pro): M 105 photographed together with the two galaxies M 95 and M 96 and many small galaxies (30 min)

References

Messier Catalogue - Messier 105: messier.seds.org/m/m105.html
Messier 105 (Wikipedia): en.wikipedia.org/wiki/Messier_105
NGC 3384 (Wikipedia): en.wikipedia.org/wiki/NGC_3384
NGC 3389 (Wikipedia): en.wikipedia.org/wiki/NGC_3389
IC 643 (Wikipedia): de.wikipedia.org/wiki/IC_643 (in German)

On this Site

Appendix: My Own Photos