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"An Alien Beyond The Veil Spawns a Bat!" - Eastern Veil Nebula (NGC 6995), Howard Trottier

"An Alien Beyond The Veil Spawns a Bat!" - Eastern Veil Nebula (NGC 6995)

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"An Alien Beyond The Veil Spawns a Bat!" - Eastern Veil Nebula (NGC 6995), Howard Trottier

"An Alien Beyond The Veil Spawns a Bat!" - Eastern Veil Nebula (NGC 6995)

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Description

Got APOD-lucky with this image! Funny thing, the image did not appear on APOD until a whole year after I submitted it, which was just before Hallowe'en of 2020 (shortly after I posted it to Astrobin) ... it showed up instead just ahead of Hallowe'en 2021! I had no idea that they hang on to anything for that long!

The full image is actually a two-panel mosaic that the APOD editors decided to crop, rotate, and reframe, so as to obtain the more familiar presentation known as the "Bat Nebula", but I was more than good with that! 

Please click the "Original" thumbnail on the right to bring up the original two-panel mosaic. 

I framed the mosaic in a way that I hoped would evoke a terrifying Alien from the well-known movie franchise, and so I originally titled the image "An Alien Beyond the Veil", but after getting lucky with APOD, I renamed it to "An Alien Beyond the Veil spawns a Bat!"

I used two narrowband filters, and in this colour mapping the redder areas correspond primarily to Ha, and the bluer regions to OIII. The mosaic combines just under 20 hours of subframes (divided roughly equally between the two filters), captured on eight nights in August. I reduced the image size for final presentation by 75%, since collimation and mount tracking on my new system had not yet been fully optimized. The final plate scale is about 0.62"/pixel, and the angular image size after cropping is about 31' x 55'.

Comments

Revisions

    "An Alien Beyond The Veil Spawns a Bat!" - Eastern Veil Nebula (NGC 6995), Howard Trottier
    Original
  • Final
    "An Alien Beyond The Veil Spawns a Bat!" - Eastern Veil Nebula (NGC 6995), Howard Trottier
    B

Histogram

"An Alien Beyond The Veil Spawns a Bat!" - Eastern Veil Nebula (NGC 6995), Howard Trottier