Tag Archives: 2016

The Changing Face of Venus

Here is a collection of Venus images from December 2016 to February 2017 showing how the size and phase of Venus has changed as it starts to move between the Earth and the Sun. Eventually, Venus will pass between the Earth and Sun and emerge into the morning sky once again.

TheSkyLive.com has a nice animated solar system map that you can view online (https://theskylive.com/).

Imaging Tech Specs: Meade LX90 12” Telescope, ZWO ASI290MC camera at prime focus, each image was composed of the best 2,000 frames of 10,000 frames sampled. Taken from Weatherly, Pennsylvania. Software included Sharpcap v2.9, AutoStakkert! Alpha Version 2.3.0.21, Registax, and Adobe Lightroom.

Additional information:

…Tom

Pleiades Through Light Cloud Cover

I really like doing wide field astrophotography when there are thin, high level clouds, I think it adds a lot of character to photographs. Here is a view of the Pleiades star cluster taken on Christmas, 2016.

Tech Specs: Canon 6D with Canon EF70-200mm f/2.8L USM lens mounted on an iOptron ZEQ25GT mount. Single 60 second exposure, ISO 1600, 70mm, f/2.8. Imaging was done on December 25, 2016 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

Central Trapezium of the Orion Nebula

I captured this view of the central region of the Orion Nebula, called the Trapezium Cluster, on the night of December 27, 2016. It is also known as Theta-1 Orionis and is about 1,600 light-years away.

The four brightest stars have been designated A, B, C, and D (see picture). I also managed to see E and F in the grouping.

The Trapezium Cluster is what provides the light for the Orion Nebula (M42) in the constellation Orion. For this image, I was focusing on the central stars only.

Tech Specs: This image is composed of a single two second exposure at ISO 5,000 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.

…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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