Jul 282019
 

We had a great clear spell 7/23 through 7/27 with only moderate lunar interference in the early hours of the morning. This is 14 hours of exposure divided equally across Hydrogen-alpha, Oxygen [III], and Sulfur[II] emission lines. Scope was an AP130GTX with Apogee U16 CCD on an AP1200GTO mount. Located outside Clinton, TN. The following are crops from the main image.

Finally, here is the nearly full frame image encompassing the whole area.

May 072019
 

Due to a moisture breach of my camera causing frosting issues which caused me to throw out all but 4.5 hours of data out of 18 I figured I might as well post this as it’s not going to get much better. Image scale was 1.31 arcsec/pixel which seems to give fairly decent sampling for the average seeing here in East Tennessee. Imaging location just outside Clinton, TN with average SQM measurements ranging from 20.1 to 20.4 mag/arcsec^2.

M106 – 4.5 hours AP130GTX, Apogee U8300, AP1200GTO

Jan 282018
 

I recently replaced the dome control electronics after the Foster Systems controller bit the dust and I replaced with a MaxDome II controller for rotation and shutter operation.  It’s working flawlessly so far and I couldn’t be happier.  I threw the 5″ refractor back in the observatory with the 16803 chipped camera for a widefield rig at 2.2 arcsec/pixel resolution.  Drizzle processing yields better star shapes/sampling than the low resolution would suggest.  Both images are cropped from the same image with 20.5 hours of total exposure time in the traditional Hubble Pallet.

 

Mar 262017
 

We’re in Galaxy Season and without the 10″ RC I’ve instead focused on the 5″ refractor with a small pixel size camera to squeeze out some detail.  Imaged from the backyard observatory in ~20.5 mag/arcsec^2 skies.

M81 – Bodes Nebula ~8 hours of exposure time. LRGB with AP130GTX, AP1200GTO, Apogee Ascent A694, Baader LRGB Filters, SX-OAG, Lodestar Guider.

 

M82 – The Cigar Approximately 7.5 Hours of exposure time. AP130GTX, AP1200GTO, Apogee Ascent A694, Baader LRGB, SX-OAG, Lodestar Audoguider