narrowfield

Soap Bubble Nebula H-Alpha Narrowfield False Colot Feb 7 2014 by Joseph Brimacombe on Flickr.

Via Flickr:
Taken from New Mexico Skies using a 51-cm RCOS telescope and SBIG STL11K camera on a Software Bisque PME robotic mount.
H-alpha 70 x 20 min exposures

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The Moon - May 25, 2013 by Joseph Brimacombe on Flickr.

Scientists at MIT have figured out the 45 year old mystery of the moon’s uneven gravitation. An asteroid slammed into the moon, causing a shockwave that sent debris flying. The crust produced a counter wave which increased density in the resulting crater, creating the bullseye gravitational pattern seen today.

(Story from http://web.mit.edu/newsoffice/2013/an-answer-to-why-lunar-gravity-is-so-uneven-0530.html)

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Globular Cluster 47 Tucanae or NGC 104 Narrowfield R - Dec 22, 2013 by Joseph Brimacombe on Flickr.

Via Flickr:
Taken from the now defunct Macedon Ranges Observatory in August 2011 using an Apogee U9000 camera and 41-cm RCOS telescope on a PME mount. Thirty minutes total exposure.

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The Southern Pinwheel Galaxy or M83 or NGC 5236 - Narrowfield C - May 8, 2016 by Joseph Brimacombe
Via Flickr:
Taken from Savannah Skies Observatory with an SBIG STL-6303 camera and 33-cm RCOS telescope in a Software Bisque PME mount. 60 x 1 min; Clear Filter; Scale 0.63 asec/px