Category Archives: Nebula

A Little Orion Nebula – NGC 1931

NGC 1931, in Auriga, is a combination of an emission and reflection nebula lying about 7000 light years away.  It is a small, but active star forming area that has been called the miniature Orion Nebula because of the similarity with it, including a smaller version of the Trapezium stars.

Tech Specs: Meade 12” LX90, Celestron CGEM-DX mount, Canon 6D stock camera, Antares Focal Reducer, ISO 3200, 21 x 60 seconds using Backyard EOS with darks, bias and flat frames, guided using an Orion 60mm guide scope with an attached ZWO ASI290MC camera. Image Date: December 14, 2017. Location: The Dark Side Observatory in Weatherly, PA.

…Tom

Reflection Nebula NGC 7129 in Cepheus

Here is a 68 minute combined exposure of the reflection nebula NGC 7129 in the constellation Cepheus. It is on the small side, measuring about 7’ x 7’ and has an apparent magnitude of 11.5. Without using filters, I don’t think I could get much more details using my stock Canon 6D but may add some additional time to it.  A young open cluster is causing the surrounding nebula to illuminate.

Reflection Nebula NGC 7129 in Cepheus

Tech Specs: Meade 12” LX90, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 1600 and 3200, mix of 60 second and 90 second exposures Backyard EOS (68 minutes total), 5 x 60 sec darks and 5 x 1/4000 sec bias frames, guided using a Canon 100mm lens with an attached ZWO ASI290MC camera. Image Date: September 22, 2017 and October 25, 2017. Location: The Dark Side Observatory in Weatherly, PA.

Clear skies!

…Tom

The Eskimo Nebula – NGC 2392 in Gemini

Here is a quick 15-minute exposure of the double-shell planetary nebula called The Eskimo Nebula or NGC 2392. It is located in the constellation Gemini and is about 2,900 light-years away at a magnitude of 10.1. I need more exposure time to bring out the filaments in the outer shell to make it look like a face surrounded by a parka hood.

Tech Specs: This image is composed of 60 x 15 second images at ISO 3,200 with 5 x 15 second darks and 5 x 1/4000 second bias frames (captured using BackyardEOS software) using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Imaging was done on February 18, 2017 from Weatherly, Pennsylvania.

…Tom

Orion Through Light Cloud Cover

I’ve been trying to experiment on wide field views, at lower ISO, and longer exposures, but the weather has not been cooperating. This is a single 4-minute exposure of Orion, obscured by light cloud cover, I think it was still a nice effect.

Tech Specs: Canon 6D with Canon EF70-200mm f/2.8L USM lens mounted on an iOptron ZEQ25GT mount. Single 4-minute exposure, ISO 400, 70mm, f/2.8. Imaging was done on December 25, 2016 from Weatherly, Pennsylvania.

…Tom

NGC 2372 Planetary Nebula in the Constellation Gemini

Here is a different looking planetary nebula designated as NGC 2371 and 2372 found in the constellation Gemini. You can just start to make out the “wings” on either side of this nebula with a 14-minute exposure. Distance to this is listed at 4,400 light-years.

Tech Specs: This image is composed of 56 x 15 second images at ISO 5,000 with 5 x 15 second darks and 5 x 1/4000 second bias frames using a Meade LX90 12” telescope and Canon 6D camera mounted on a Celestron CGEM-DX mount. Imaging was done on December 27, 2016 from Weatherly, Pennsylvania.

Online references:

Wikipedia (https://en.wikipedia.org/wiki/NGC_2371-2)

DSO-Browser (https://dso-browser.com/deep-sky/3305/ngc-2371/planetary-nebula)

…Tom

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