SQM readings from Ocala Florida

Here are some sample SQM readings using the Dark Sky Meter for iPhone.  Skies in Ocala are a Bortle scale 6 and the Milky Way is faint on the the best of nights at zenith.


Losmandy G11 with Gemini 2 Periodic Error (PEMPro)

My findings on PE and the Losmandy G11 "stock" worm gear BEFORE and AFTER PEC using PEMPro...
This was my first time using PEMPro and I followed the directions as outlined.
The first curve (Before PEC) was taken with 7 cycles and the second curve (After PEC) was taken with 3 cycles.
Focal length of scope 1625mm
Imaging camera QSI 683
Mount: Losmandy G11 with Gemini 2
If I did this correctly (and I understand what was collected) I am quite happy with these results.

Before PEC

After PEC

Current equipment and configuration

Current equipment and configuration...
Astro-Tech 8" Ritchey-Chretien with a focal length of 1625mm (f/8)
Losmandy G 11 mount with Gemini II
Astro-Tech 2" Field Flattener
7.5mm extension ring by Baader Planetarium
Starlight Xpress Lodestar
Quantum Scientific Imaging, Inc. 683wsg-8 Monochrome CCD Camera
Astrodon Tru-balance E-Series Generation II LRGB
Astrodon 5nm SII. OIII and Ha Narrowband Filter


M106 is a Spiral galaxy in Canes Venatici ~23.7 million light years from Earth.
Imaged February 15, 16, 28 and March 2 2014 from Ocala, FL.
1 6 min hours each RGB
3 hours and 40 min Luminance

2 hours and 20 min Ha 
Processed in Photoshop CS5
Imaging camera: QSI 683 wsg-8
Imaging telescope: Astro-Tech 8" Richey-Chretien
Losmandy G-11 with Gemini II