Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  Horsehead nebula  ·  IC 432  ·  IC 434  ·  M 42  ·  M 43  ·  M 78  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC 1990  ·  NGC 1999  ·  NGC 2023  ·  NGC 2024  ·  NGC 2064  ·  NGC 2067  ·  NGC 2068  ·  Part of the constellation Orion (Ori)  ·  The star 31Ori  ·  The star 42Ori  ·  The star Alnilam (εOri)  ·  The star Alnitak (ζOri)  ·  The star Mintaka (δOri)  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri  ·  The star σOri

Image of the day 03/30/2016

Getting plate-solving status, please wait...
Widefield Orion's Belt - Deep Sky West, Deep Sky West (Lloyd)
Widefield Orion's Belt - Deep Sky West
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Widefield Orion's Belt - Deep Sky West

Link to TIFF/FITS: http://www.deepskywest.com

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Description

"Test image" ;-) Wide field nearby Orion's Belt. First light with Rokinon 135 f/2 lens on QSI camera platform. This is unguided--so far I'm going on the premise that a wide aperture, short FL with a great mount = shorter exposures and therefore guiding not necessary. The PME with Protrack is proven to produce round stars unguided with a 3400mm scope in 10 minute exposure...in-house testing, not theoretical.

Of course a 135mm lens looks absolutely ridiculous on a PME but astronomers do it in the dark so no one really sees it!

Exemplar: https://volskiy.smugmug.com/Nebulas/i-8dZ6DdL

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Revisions

  • Final
    Widefield Orion's Belt - Deep Sky West, Deep Sky West (Lloyd)
    Original
    Widefield Orion's Belt - Deep Sky West, Deep Sky West (Lloyd)
    B

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Widefield Orion's Belt - Deep Sky West, Deep Sky West (Lloyd)

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Cloudy Nights

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Rokinon