Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  1 Mon  ·  17 rho Ori  ·  19 Ori)  ·  19 bet Ori  ·  2 Mon  ·  20 tau Ori  ·  21 Ori  ·  23 m Ori  ·  24 Ori)  ·  28 Ori)  ·  29 e Ori  ·  3 iot Lep  ·  30 psi Ori  ·  32 A Ori  ·  34 Ori)  ·  36 ups Ori  ·  39 lam Ori  ·  44 Ori)  ·  46 Ori)  ·  47 ome Ori  ·  49 d Ori  ·  50 Ori)  ·  52 Ori  ·  53 Ori)  ·  53 kap Ori  ·  55 Ori  ·  56 Ori  ·  58 Ori)  ·  59 Ori  ·  60 Ori  ·  And 2849 more.
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Orion Widefield, Brian Boyle
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Orion Widefield

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Orion Widefield, Brian Boyle
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Orion Widefield

Equipment

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Acquisition details

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Description

With 6mins darkness before a 90%+ moon rose, and lots of cloud about, I decided I had nothing to lose and so tried a bit new and experimental for me.

I put my Rokinon 85mm lens onto my ZWO ASI2400 to give a 10deg field of view. Was all set with darks and flats by 10.30pm - ready for 50mins of twilight observing when my ZWO ASIAir stopped talking to my telescope mount.

After a few minutes of switching off and on, unplugging cables, I pulled out my hand controller and did things manually. I couldn't dither or auto guide, so the resultant image suffers from a few blemishes and I only managed 45minutes before the moon started to overwhelm things again. Packing up just after midnight. I trie one final unplug and system re-boot and - of course - it all started to work again. Oh well, there is always another night.

Given my first attempt at mount a camera lens on a ZWO camera, the conditions and the equipment (operator?) failure, its an OK image. And enough to make make come back again. The Rokinon lens shows up a fair bit of aberration at f/4 - worse than when used with the Canon body. I suspect this is the mounting.

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Revisions

  • Orion Widefield, Brian Boyle
    Original
  • Final
    Orion Widefield, Brian Boyle
    B

B

Description: Inspired by the competition to submit a photo with <1hour duration, I revisited one from 2years ago. The last time I shot less than 1 hour.

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Sky plot

Sky plot

Histogram

Orion Widefield, Brian Boyle