Messier 108 (M 108)

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

On this page I collect my observations of the barred spiral galaxy M 108 (NGC 3556) in the constellation Ursa Major.

 

Introduction

The galaxy M 108 in the constellation Ursa Major is a barred spiral galaxy that is nearly seen edge-on. Close to it, there is the planetary nebula M 97 (Owl Nebula). In the Vespera (Pro), both DSO can be observed jointly.

M 108 (NGC 3556)      M 97 (Owl Nebula; NGC 3587)
Size: 5' x 1.5' (Stoyan)
Distance: 45 million light years   (Stoyan)
Rating: ** (Stoyan)
  Size: 3.3'   (Stoyan)
Distance: 1,300 light years   (Stoyan)
Rating: **   (Stoyan)

 

Map

The barred spiral galaxy M 108 in the constellation Ursa Major (close to M 97) (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)

 

My Best Own Photos

eVscope

         

M 108 - March 6, 2021

 

M 108 - March 6, 2021

 

M 108 - March 6, 2021

      

M 108 - March 6, 2021, photo on top processed

 

M 108 - March 6, 2021, photo on top processed

 

M 108 - March 6, 2021, photo on top processed

     

M 108 - Jun 1, 021

 

M 108 - Jun 1, 2021, photo left processed (Polarr)

   

Vespera

M 108 & M 97 , Aug 28, 2022 - original (61 frames = 610s)

Vespera Pro

    

M 108 & M 97, May 22, 2024 - 2000p (54 frames = 540s)

 

M 108 & M 97, May 22, 2024 - 2000p (54 frames = 540s), processed

    

M 108 & M 97, May 25, 2024 - 2000p (150 frames = 1500s)

 

M 108 & M 97, May 25, 2024 - 2000p (150 frames = 1500s), processed (PSE)

   

M 108 & M 97, May 25, 2024 - 2000p (150 frames = 1500s), additionally denoised (DN)

   

 

My Own Observations

Observations March to June 2020

Observations March to June 2021

Observations April to May 2022

Observations August 2022

Observations May 2024

 

References

On this Site


Appendix: My Own Photos

Atik Infinity

    

M 108 - May 6, 2022

 

M 108 - May 6, 2022, processed

eVscope

         

M 108 - Mar 14, 2020

 

M 108 - Mar 23, 2020

 

M 108 - Apr 19, 2020, fuzzy

         

M 108 - Mar 14, 2020, photo on top processed

 

M 108 - Mar 23, 2020, photo on top processed

 

M 108 - Apr 19, 2020, fuzzy, photo on top processed

         

M 108 - Apr 21, 2020

  M 108 - May 5, 2020   M 108 - Jun 12, 2020
         

M 108 - Apr 21, 2020, photo on top processed

 

M 108 - May 5, 2020, photo on top processed

 

M 108 - Jun 12, photo on top 2020, processed

      

M 108 - March 6, 2021

 

M 108 - March 6, 2021

 

M 108 - March 6, 2021

      

M 108 - March 6, 2021, photo on top processed

 

M 108 - March 6, 2021, photo on top processed

 

M 108 - March 6, 2021, photo on top processed

     

M 108 - Jun 1, 2021

 

M 108 - Jun 1, 2021, photo left processed (Polarr)

   

eVscope 2

    

M 108 - Apr 9, 2022

 

M 108 - Apr 9, 2022, photo left processed

    

M 108 - Apr 9, 2022

 

M 108 - Apr 9, 2022, photo left processed

Vespera

M 108 & M 97, Aug 28, 2022 - original (61 frames = 610 seconds)

Vespera Pro

    

M 108 & M 97, May 22, 2024 - 2000p (54 frames = 540s)

 

M 108 & M 97, May 22, 2024 - 2000p (54 frames = 540s), processed

    

M 108 & M 97, May 25, 2024 - 2000p (150 frames = 1500s)

 

M 108 & M 97, May 25, 2024 - 2000p (150 frames = 1500s), processed (PSE)

   

M 108 & M 97, May 25, 2024 - 2000p (150 frames = 1500s), additionally denoised (DN)