Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 4236
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NGC4236, Albert van Duin
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NGC4236

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NGC4236, Albert van Duin
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NGC4236

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Description

8 luminance images made during a hot summer night. We have been experiencing very high nighttime (as well as daytime) temperatures the last few weeks, and I fear my mirror cell is pinching the main mirror, the stars look triangular. Still this is a nice galaxy that isn't a very popular object for imaging. I will need to remedy the problem and do some more imaging...

Version C is a big stack of mediocre data, due to lots of high clouds... 10 x 600s L, and 16 x R, 9 x G and 20 x B.

The final version contains some new data aquired in April 2019 and in addition a lot of the old data was not used. It looks a lot cleaner, apart from some flaring stars.

Comments

Revisions

  • NGC4236, Albert van Duin
    Original
  • NGC4236, Albert van Duin
    C
  • Final
    NGC4236, Albert van Duin
    E

C

Description: Added colour

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E

Description: Made some extra colour frames and threw away some data that was not that good. I think it looks better.

Uploaded: ...

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NGC4236, Albert van Duin