Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble nebula  ·  M 52  ·  NGC 7510  ·  NGC 7538  ·  NGC 7635  ·  NGC 7654
Bubble Nebula (widefield mosaic 2009), Tony Cook
Bubble Nebula (widefield mosaic 2009)
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Bubble Nebula (widefield mosaic 2009)

Bubble Nebula (widefield mosaic 2009), Tony Cook
Bubble Nebula (widefield mosaic 2009)
Powered byPixInsight

Bubble Nebula (widefield mosaic 2009)

Equipment

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Acquisition details

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Description

One of my earliest photographs taken with a modified Canon 450D using unguided imaging on a Losmandy GM8 mount. This required very careful offset balancing, excellent PA, good PEC and a high DEC target to achieve good results. I obtained 73 very good frames over two nights.

The field contains the open cluster Messier 52 (NGC 7654), the Bubble nebula (NGC 7635), and small but bright knot of a hydrogen emission nebula (NGC 7538) and a small open cluster in the bottom right (NGC 7510)

Version B: re-cropped to remove a mosaicking issue. Reset the black point by sampling three very dark dust clouds to pick better values

Version C: fixed a vignette issue exposed by the colour rebalance in B

Comments

Revisions

  • Bubble Nebula (widefield mosaic 2009), Tony Cook
    Original
  • Final
    Bubble Nebula (widefield mosaic 2009), Tony Cook
    C

Sky plot

Sky plot

Histogram

Bubble Nebula (widefield mosaic 2009), Tony Cook

In these public groups

Cloudy Nights