Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  IC 1396  ·  The star Garnet Star (μCep)
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Emeralds and Garnets  -  Comet Jacques meets Herschel's Garnet Star, Tony Cook
Emeralds and Garnets  -  Comet Jacques meets Herschel's Garnet Star
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Emeralds and Garnets - Comet Jacques meets Herschel's Garnet Star

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Description

Comet C/2014 E2 (Jacques) passing close to Herschel's Garnet Star (Mu Cephei)

The processing of this image will be the subject of a new tutorial as it represents a very difficult "star freeze" case containing an underlying irregular background in the form of emission nebula. This makes comet extraction tough! The blending technique is also novel as it had to cope with the same irregular background that defeats the usual "lighten" blending approach.

Version "B" corrects a calibration problem

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  • Emeralds and Garnets  -  Comet Jacques meets Herschel's Garnet Star, Tony Cook
    Original
  • Final
    Emeralds and Garnets  -  Comet Jacques meets Herschel's Garnet Star, Tony Cook
    B

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Emeralds and Garnets  -  Comet Jacques meets Herschel's Garnet Star, Tony Cook

In these public groups

Comets Imaging
Cloudy Nights