The Helix Nebula - NGC 7293 in Aquarius
Imaged from Nova Scotia
First Version with a Short Focal Length Instrument-Data Obtained Summer, 2014
Second Version using Short Focal Length 2014 Data Merged With Data From A Long Focal Length Instrument Data Obtained Summer-Fall, 2014-2015
Short Focal Length Version
Short Focal Length HaRGB Combination
Data
Altitude at culmination 25°
Airmass Value (sec z) 2.4
Taking Camera SBIG STL-11002XM
Nova Scotia Summer 2014, ~mag 6.4 - no moon @-20C
Imaging OTA
Takahashi TOA-150 with TOA-67 Field Flattener
Equivalent focal length and ratio
1090mm f/7.3
Mount
Astro-Physics 1600GTO
Guiding
PHD2/MMOAG/SBIG ST-i
HaRGB Total integration time 17hrs 10mins
Ha 10X30min, R21x10 min, G-25x10 min, B27x10 min-Astrodon Gen 2 I series Filters. Binned 1X1
Acquisition
Main Sequence Software-Sequence Generator Pro
Calibration and Stacking
Darks, Flats and Bias - Stacked and calibrated with PixInsight
Processed
PixInsight, Adobe Photoshop CS5 and Bob Franke's CCDBand-Aid
Version Incorporating Long and Short Focal Length Data Combined
Combined Long and Short Focal Length HaRGB Combination
| Data | |
|---|---|
| Altitude at culmination 25° | |
| Airmass Value (sec z) 2.4 | |
| Taking Camera SBIG STL-11002XM | Nova Scotia Summer/Fall 2014-2015, ~mag 6.4 - no moon @-20C |
| Imaging OTAs | Takahashi TOA-150 with TOA-67 Field Flattener combined with 14.5" AGO iDK |
| Equivalent focal length and ratio | 2465mm f/6 |
| Mount | Astro-Physics 1600GTO |
| Guiding | PHD2/MMOAG/SBIG ST-i |
| HaRGB Total integration time 19hrs 10mins | Ha 11X30min, R27x10 min, G-21x10 min, B34x10 min-Astrodon Gen 2 I series Filters. Binned 1X1 | Acquisition | Main Sequence Software-Sequence Generator Pro | Calibration and Stacking | Darks, Flats and Bias - Stacked and calibrated with PixInsight |
| Processed | PixInsight, Adobe Photoshop CS5 and Bob Franke's CCDBand-Aid |
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