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Contains:  M 46, NGC 2437, NGC 2438
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M46 with NGC 2438 and PK231+4.1, 



    
        

            Michael Feigenbaum
M46 with NGC 2438 and PK231+4.1
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M46 with NGC 2438 and PK231+4.1

Technical card


Dates:Feb. 15, 2020

Frames: 183x60"

Integration: 3.0 hours

Avg. Moon age: 21.68 days

Avg. Moon phase: 55.01%


Basic astrometry details

Astrometry.net job: 3247236

RA center: 7h 41' 58"

DEC center: -14° 47' 6"

Pixel scale: 0.920 arcsec/pixel

Orientation: 263.295 degrees

Field radius: 0.768 degrees


Resolution: 4976x3360

Locations: Papago Butte, near Maricopa, AZ, United States

Data source: Backyard

Description

Here we have M46, a very nice open cluster in Puppis. I find this one to be a little more interesting than the average open cluster because there are two very nice planetary nebulae in the field of view. We have NGC 2438 which is quite apparent in the center of the FOV but also, to the right of it you will find a much smaller PN which, I have learned, is PK231+41. I have read a little about these two PNs and the consensus is that they are not related to M46. M46 lies about 4,900 ly distant and contains approximately 500 members.

As always, comments and criticism encouraged!
CS

Comments

Author

MikeF29
Michael Feigenbaum
License: None (All rights reserved)
2144
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Revisions

  • M46 with NGC 2438 and PK231+4.1, 



    
        

            Michael Feigenbaum
    Original
  • M46 with NGC 2438 and PK231+4.1, 



    
        

            Michael Feigenbaum
    D
  • Final
    M46 with NGC 2438 and PK231+4.1, 



    
        

            Michael Feigenbaum
    H

H

Description: This image is not one of my better images. But I have been considering how I do my color balance and decided to attempt to better this one in that regard. Also, as suggested by my friend Gabriel (Ofiuco), I added some annotation for the two planetary nebulae.

Sky plot

Sky plot

Histogram

M46 with NGC 2438 and PK231+4.1, 



    
        

            Michael Feigenbaum