Astro Gabe's photostream  

One of the most familiar constellations in the sky, at least some portion of Orion is visible from everywhere on Earth. The familiar shape of Orion the hunter is shown in this wide field image. Betelgeuse glows orange in the upper left and is a supergiant star with a radius nearly 700 times that of our sun. Rigel sits on the lower right while the belt of Orion is marked by the three bright central stars falling in a line. To the left of the belt is the famous Horsehead and Flame Nebulae. Below the belt extends the sword of Orion which contains the famous great Orion nebula complex (M43/M42) as well as the running-man nebula. Finally, the long arch to the left is Barnard's loop, a faint nebula that's the remnant of a 2 million year old supernova. The loop is about 300 light years in diameter.

Technical details:
This is the first wide field attempt with the Nikon lens adapter for my SBIG camera. It works quite well, but this lens works best a few f/stops from wide open. Taken under a nearly full moon. Total exposure time 1.25hrs. Would like to go deeper with more exposure time.

Imaging scope: Nikon 55mm f/1.8 Lens set to f/4
Imaging Camera: ST8300M (capture with Equinox Image)
Filters: Baader filters in FW5-8300 filter wheel
Guide scope: Astro-Tech 106mm Triplet
Guide camera: Starfish Fishcamp (guided with PHD)
Mount: Atlas EQ-GCalibration and processing in PixInsight.

Synthetic luminance from all frames
L(HaR)GB:
Ha: 12x5min (1x1)
R: 5x1min (1x1)
G: 5x1min (1x1)
B: 5x1min (1x1)

The Horsehead and Flame Nebulae in Orion are a part of the vast Orion nebular complex. The Flame's source of energy is the brightest star in the frame, Alnitak. The reflection nebula to the lower right is NGC2023, a 4 light year wide molecular hydrogen cloud.

Imaging scope: Astro-Tech 106mm TripletImaging Camera: ST8300M (capture with Equinox Image)Filters: Baader filters in FW5-8300 filter wheelGuide scope: Astro-Tech 65 QuadrupletGuide camera: Starfish Fishcamp (guided with PHD)Mount: Atlas EQ-GCalibration and processing in PixInsight.
Synthetic luminance from all frames
L(HaR)GB:
Ha: 3x6min (2x2), 11x5min (1x1)
R: 1x3min, 7x5min (2x2)
G: 1x3min, 5x5min (2x2)
B: 3x3min, 5x5min (2x2)

HQ version here

The most distant object observable with the naked eye, the Triangulum galaxy is 3 million light years away. The red regions mark emission nebulae and show the star forming regions in the galaxy.

Imaging scope: Astro-Tech 106mm Triplet
Imaging Camera: ST8300M (capture with Equinox Image)
Filters: Baader filters in FW5-8300 filter wheel
Guide scope: Astro-Tech 65 Quadruplet
Guide camera: Starfish Fishcamp (guided with PHD)
Mount: Atlas EQ-G
Calibration and processing in PixInsight.

LRGB:
L: 10x5min (1x1)
RGB: 8x5min (2x2)

HQ version here

A closeup of the California Nebula in Perseus through an Halpha filter. While the closeup doesn't show it's California-like shape, it does offer a more detailed view of the wisps in the central region of the nebula.

Imaging scope: Astro-Tech 106mm Triplet
Imaging Camera: ST8300M (capture with Equinox Image)
Filters: Baader filters in FW5-8300 filter wheel
Guide scope: Astro-Tech 65 Quadruplet
Guide camera: Starfish Fishcamp (guided with PHD)
Mount: Atlas EQ-G
Calibration and processing in PixInsight.

Ha: 10x10min (1x1)

HQ version here

The Propeller nebula in Cygnus is an emission nebula along the galactic plane. Surrounding it are fainter wisps of emission nebula that are prevalent in this region of the sky. Quickly taken last September between periods of clouds. The result is a pretty weak and needs more time spent on it.

Imaging scope: Astro-Tech 106mm Triplet
Imaging Camera: ST8300M (capture with Equinox Image)
Filters: Baader filters in FW5-8300 filter wheel
Guide scope: Orion EON 80mm
Guide camera: Starfish Fishcamp (guided with PHD)
Mount: Atlas EQ-G
Calibration and processing in PixInsight.

HaRGB:
Ha: 16x5min (2x2)
RGB: 4x1min (2x2) each