Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
M31 Andromeda Galaxy with Bahtinovic field stars, StarGale
M31 Andromeda Galaxy with Bahtinovic field stars
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M31 Andromeda Galaxy with Bahtinovic field stars

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Description

I forgot to take the Bahtinov focusing mask off, so the Bahtinovic field stars. The focusing mask cut the light throughput by 50% and made the fainter stars smudgy. I reduced the image to 25 percent after processing in full resolution in StarTools. Image B increases the contrast and desaturates the background a bit to remove some of the reddish background noise.

The temperature that night was fairly steady after the cooldown to 54 degrees F. I took no darks, bias frames, or flats. May take some darks and bias frames for this temperature and ISO at a later date.

Image C: Wavelet sharpen Scales 2 and 3 with amount=1000 percent to make dust lanes sharper. Also makes star brighter and sharper.

The G11 mount was unguided with PEC turned off.

Comments

Revisions

  • M31 Andromeda Galaxy with Bahtinovic field stars, StarGale
    Original
  • M31 Andromeda Galaxy with Bahtinovic field stars, StarGale
    B
  • Final
    M31 Andromeda Galaxy with Bahtinovic field stars, StarGale
    C

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M31 Andromeda Galaxy with Bahtinovic field stars, StarGale