Messier 46 (M 46) / NGC 2438

Introduction | Map | My Own Photos | My Own Observations | References

On this page I collect my observations of the open star cluster M 46 and the planetary nebula NGC 2438 in the constellation Puppis.

 

Introduction

The constellation Puppis is also one of the constellation that were unknown to me, particularly, because it belongs to the southern sky. It contains the two open star clusters M 46 and M 47, which are located so close to each other in the sky that, at low magnifications, they can even be observed together. This is possible with the Vespera, but not in the eVscope (2). M 46 includes visually the planetary nebula NGC 2438, which I was not able to find at first. But in February 2020, I was able to discover it on a photo that I took with the eVscope, and the same occurred with the Vespera in February 2023.

M 46

 

NGC 2438

Size: 20' x 15' (Stoyan)
Distance: 6,000 light years
Rating: ***
     Size: 1.1' (Stoyan)
Distance: 4,000 light years
Rating: *

 

Map

M 46 (left) and M 47 (right) in the constellation Puppis (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)

 

My Own Photos

eVscope

         

M 46/NGC 2438 - Feb 19, 2020

 

M 46/NGC 2438 - Feb 19, 2020

 

M 46/NGC 2438 - Feb 19, 2020, NGC 2438 marked

     

M 46/NGC 2438 - Mar 14, 2020

 

M 46/NGC 2438 - Mar 14, 2020, processed

   
     

M 46/NGC 2438 - Mar 18, 2020

 

M 46/NGC 2438 - Mar 18, 2020, processed

   

Vespera

    

M 46/NGC 2438 and M 47 - Feb 13, 2023, original, mosaic, 3150s

 

Section from the photo left with M 46 and NGC 2438 (red)

   

Ditto, evaluation with astrometry.net

   

 

My Own Observations

Observations End of March 2017

Observations End of March 2018

Observations February 2019

Observations February to March 2020

Observations February 2023

 

References

On this Site