Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 4236
NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck
NGC 4236 - Spiral galaxy in Draco - HaLRGB
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NGC 4236 - Spiral galaxy in Draco - HaLRGB

Revision title: Reprocessed with DeepSNR noise reduction

NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck
NGC 4236 - Spiral galaxy in Draco - HaLRGB
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NGC 4236 - Spiral galaxy in Draco - HaLRGB

Revision title: Reprocessed with DeepSNR noise reduction

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Description

A galaxy with the size of almost the full moon (22′) that is only rarely imaged, despite it's large size. It has very low surface brightness and that likely explains why it is not a popular target. The brightness of the barred core is not too bad but you need dark skies and lots of exposure time to separate the spiral arms from the background. There are plenty of star-forming regions in NGC 4236 and my H-alpha filter was useful to enhance these pink patches.

Reprocessed in 2023 with DeepSNR noise reduction

Comments

Revisions

  • NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck
    Original
  • NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck
    B
  • NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck
    C
  • Final
    NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck
    D
  • NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck
    E

B

Title: Ha-LRGB

Uploaded: ...

C

Title: Reprocessed with DeepSNR noise reduction

Uploaded: ...

D

Title: Reprocessed with DeepSNR noise reduction

Description: Reduced background and stars

Uploaded: ...

E

Title: LRGB only

Uploaded: ...

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NGC 4236 - Spiral galaxy in Draco - HaLRGB, Victor Van Puyenbroeck