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Constellation Crux and Coalsack Nebula (C99) (Re-Work)

In April 2021 I posted here a new version of a capture made in July, 2020. Well, I was not entirely happy.

Then, I decided to do a new version. This means that the picture I’m posting today is at least the 3rd version of the same data. Ok, ok, sorry. I won’t be stalling. Here is the new (And hopefully the last) version:

Crux and Coalsack Nebula (C99)

Also, I made an annotated version, with the astrometric solution. What are your thoughts?

Crux and Coalsack Nebula (C99) with astrometric solution
Crux and Coalsack Nebula (C99) with astrometric solution

EXIF

This is the equipment I used to capture this image:

No autoguiding this time!

And the lights:

  • 142x30s (Total of 1.2h of exposure);
  • ISO 1600;
  • Bortle 6 skies;
  • Moon: 81% illuminated;
  • No darks, flats or BIAS;
  • Data captured on July 9, 2020;
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Messier 42, The Orion Nebula – a new version

On November 2020 the skies allowed me to shoot Messier 42, The Orion Nebula, again. This time I used my new camera and light pollution filter, and now the result is… kinda ok.

I got only 55 minutes with 30s frames, but the surrounding nebulosity already begun to show itself.

My new field flattener also helped a lot to flatten the borders of the frame!

Messier 42 does not require any comments. It’s probably the most known nebula of the sky, visible through naked eyes!

The Orion constallation is full of this emission nebulas, but M42 is by far the most proeminent.

Enough talking! Here comes the pic:

Setup for photographing Messier 42

Canon T6i (750D) astro modified
Long Perng S400M-C 66mm f/6 refractor
Field Flattener for short refractors (Looks like Orion Field Flattener)
iOptron CEM25P with a 2″ tripod
ZWO 60280 Finder and Guide Scope
QHY5L-ii Color

EXIF:

110 x 30s
ISO 1600
150 DARKS, FLATS and BIAS

See in more detail:

Instagram
Astrobin
Flickr

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Cat’s Paw nebula – NGC 6334

NGC 6334, the Cat’s Paw nebula is a faint emission nebula on the constellation of Scorpio.

That’s finally my last capture before I get my DSLR modified for astrophotography.

My setup for astrophotography is slowly getting the way I want!

Of course, my ideia was to shot an emission nebula hard to capture with a stock camera. If everything ends right, soon I’ll post a version of this same target, with some quite similar exposure, but with an astromoded Canon T6i. Wish me luck!

Well… the Cat’s Paw nebula is a hard target for Bortle 6 skies and a stock DSLR. Almost 3 hours of exposure and I hardly got some nebulosity. I hope it will change soon, as soon my camera come back and my Optolong L-Pro arrive.

Here it is:

Cat's Paw Nebula - NGC 6334
Cat’s Paw Nebula – NGC 6334

Setup:

EXIF:

  • 87 x 120S
  • ISO 1600

My sky is getting worse

Well, when I was using my Nikon D5000, the light pollution was a problem, of course, but not a major one. I mean, I was using ISO 400, and 120s frames apear not too gray at the time.

As soon I as put my hands on my new Canon T6i, I saw the real problem. 120s subs with 1600 ISO are enough to let the frame almost white!

Look at this:

120s ISO 1600 SUB -  Cat's Paw Nebula - NGC 6334

This is one single frame with 120s of exposure time and 1600 ISO.

Optolong L-Pro Clip Filter on the way

To fix (or at least try) this issue, I bought a Optolong L-Pro Clip Filter. I’m in Brazil, and it’s coming from China, so… just imagine how long I’ll need to wait…

But don’t worry!

Canon T6i astromod on the way

Also, I just sent my new Canon T6i to be modified for astrophotography.

As you can imagine, I can’t even sleep.

As soon as I put my hands on the canon again I’ll try to shot the Cat’s Paw once more!

See you soon!