Here is a view of the moon setting from the Fall River Road in Rocky Mountain National Park – the aspen were just starting to pop colors.
Tech Specs: Canon 6D, Canon EF400mm f/5.6L USM lens, ISO 1250, 1/3200 sec., f/11. Image date was September 19, 2016.
I captured this view of Orion on the morning of September 12, 2016 from my backyard. Betelgeuse (red star in the upper left) and Rigel (bright star on the lower right) really stand out in this image. The actual size of these stars is utterly amazing! Here they are compared to our own Sun (radius):
- Betelgeuse 510,300,000 miles
- Rigel 33,730,000 miles
- Sun 432,700 miles
If you replaced our Sun with Betelgeuse, the surface of Betelgeuse would extend past the asteroid belt, this would effectively swallow up Mercury, Venus, Earth and Mars.
Tech Specs: Canon 6D, Canon EF70-200mm f/2.8L USM lens, tripod mounted. Three photostitched images at ISO 3200, 6 seconds, f/2.8 and 70mm. Star filter was used on the end of the lens to add diffraction spikes. Imaging date was September 12, 2016.
The “jeweled scimitar” is formed after the first quarter moon when the sun highlights the eastern facing slopes of Montes Jura. This mountain range is on the northwestern section of Sinus Iridum which itself is in the northwestern area of Mare Imbrium.
Tech Specs: Canon 6D, Meade LX90 12” telescope, best 300 frames of 1500 frames, stacked and stretched in Registax. Imaging date: September 12, 2016.
Here is a triplet of galaxies often referred to as the Draco Trio, NGC 5985, NGC 5982 and NGC 5981. The grouping includes the edge-on barred spiral galaxy, NGC 5981, on the right. The elliptical galaxy NGC 5982 in the center. The last, NGC 5985 is a beautiful face on barred spiral galaxy, on the left. These galaxies are about 100 million light years away.
Tech Specs: This image is composed of 60 x 15 second images at ISO 3200 with additional dark and bias frames. Equipment included a Meade LX90 12” telescope, Antares Focal Reducer, and Canon 6D camera. Imaging was done on September 1, 2016.
I found two different Astronomy Pictures of the Day for this trio:
Here is a full view of the constellation Canis Major and the star Sirius taken early on the morning of September 12, 2016 at Hickory Run State Park in Pennsylvania. This shot also includes two bright Messier objects, M41 (The Little Beehive) located to the lower right of Sirius, and M47 (open cluster) on the left edge of the image.
Tech Specs: Canon 6D, Canon EF70-200mm f/2.8L USM lens, tripod mounted. Three image panorama at ISO 3200, 6 seconds, f/2.8 and 70mm. Star filter was used on the end of the lens to add diffraction spikes.
You can read more about Canis Major and Sirius at these links: