8" F/2.6 Images HBAstro.com Dave Erickson

	Home 4.5" F/4 18" Focal Length 8" F/2.6 21.5" Focal Length 6' Dome Astrographs STL-11000M SBIG CCD camera Photos		M42 M43 Great Orion Nebula (3) 12min Subframes HAlpha November 2012

			Veil Nebula Partial Data set 4.5" F/4 NC1804 May 14, 2013

M8 Lagoon and M20 Trifid Nebula 4.5" F/4 NC1804 (2) 20 min Subframes HAlpha May 15, 2013	M16 the Eagle Nebula 4.5" F/4 NC1804 (2) 20 min Subframes HAlpha May 13, 3013	Horse Head Nebula An Experiment in Image Processing (3) 12 min Subframes HAlpha October 13, 2012	M42 M43 Great Orion Nebula (3) 12min Subframes HAlpha ("newer thinner filters", no spherical on-axis, no coma off axis, stars FWHM 1.5 pixels average accross the entire field 3.8° corner to corner, improved star halos from AR coatings) November 2012

Barnard 7, 10,211/3, 209 Taurus RGB (4) 3min Subs 36min total (new filters are too thick, stars are bloated and aberrated) October 15, 2012	Horse Head Nebula Testing some AR Coated NO-HALO Filters Orion RGB (4) 2min R,G and (4) 3min B sub frames (8)HAlpha 5 min sub frames 68 min total exposure (At F/2.6 the new filters are too thick causing spherical on axis, coma off axis, and while AR coatings help a lot the bright stars still have halos) October 13, 2012	SH2-205, LBN696, LDN1391, NGC 1496 and a small part of NGC1491 lower left RGB (8) 2min R,G and (8) 3min B sub frames RGB (24)HAlpha 5 min sub frames 176 min total exposure Camelopardalis September 20, 2012	Sh2-183, Sh2-181, LBN617 , LBN614, LDN1288, LDN1303 Cassiopeia RGB (3) 2min R,G and (3) 3min B sub frames RGB (12)HAlpha 5 min sub frames 81 min total exposure September 20, 2012

SH2-210 Hydrogen Emission Nebula Perseus RGB (4) 2min R,G and (4) 3min B sub frames RGB (12)HAlpha 5 min sub frames 88 min total exposure September 20, 2012	SH2-154, SH2-155, NGC 7419Cepheus RGB (4) 2min R,G and (4) 3min B sub frames (12)HAlpha 5 min sub frames 88 min total exposure September 19, 2012	SH2-173 Hydrogen Emission Nebula and Lower left of bottom center NGC103 Cassiopeia RGB (3) 2min R,G and (3) 3min B sub frames RGB (12)HAlpha 5 min sub frames 81 min total exposure Sep 19, 2012	SH2-202 Hydrogen Emission Nebula Camelopardalis RGB (4) 2min R,G and (4) 3min B sub frames RGB (6)HAlpha 5 min sub frames 58 min total exposure September 13, 2012

LBN 470 Nebula Area RGB (4) 2min R,G and (4) 3min B sub frames RGB (6)HAlpha 5 min sub frames 58 min total exposure Sep 13, 2012	Barnard 18, (LBN 798, 800, 812, 815), (LDN 1524, 1536) RGB (4) 2min R,G and (4) 3min B sub frames RGB 20 min total exposure Sep 15, 2012	SH2-171 Cepheus (14) 5 min HAlpha subs 70 min total exposure Sep 15, 2012	NGC1499 California Nebula 4.5 hours total exposure Aug 2012

NGC 1499 California Nebula (2) Pane Mosaic (24) 5 min HAlpha sub frames (4) hours total exposure over several nights August 2012	Heart Soul Double Cluster Mosaic Halpha (6)panes total (36) 5 min exposures 3hours total exposure August 2012	NGC7293 Planetary Nebula (3) 2min Red Green and (3) 3min Blue (6) 5min HAlpha and OIII 75 min total exposure July 2012	M33 Triangulum Galagy (3) 2min Red Green and (3) 3min Blue (6) 5min HAlpha and OIII 75 min total exposure July 2012

M19 Globular Cluster upper center and nebula... (3) 2min Red Green and (3) 3min Blue (6) 5min HAlpha 45 min total exposure July 2012	NGC6293 Globular Cluster upper Left B244 lower left portion of the Pipe Nebula center left... (3) 2min Red Green and (3) 3min Blue (6) 5min HAlpha 45 min total exposure July 2012	M6 (upper center) NGC6416 Both Open Clusters with some emission and dark nebula... (3) 2min Red Green and (3) 3min Blue (6) 5min HAlpha 45 min total exposure June 2012	M25 (IC 4725) and NGC 6647 with some dark nebula ...also try to find Pluto... (6) 2min Red Green and (6) 3min Blue 30 min total June 2012

North American Nebula and Dark Nebula to the South 60 min total-(6)10min subs HAlpha June 2012	M9 and NGC 6342 Globular Clusters 45 min total-(3)5min subs RGB June 2012	NGC7000 North America Nebula 90 min total-(6)5min subs RGB and (6) 10min subs HAlpha June 2012	M31 Andromeda Galaxy 90 min total-(6)5min subs RGB June 2012

Lagoon and Trifid Nebua 68min total exposure June 2012	Veil Mosaic False Color NGC6992 NGC6995 NGC6960 Veil Nebula Cygnus (2)Pane Mosaic 15min Ha OIII RGB April 2011	M107 and Nebula 10min HaRGB June 2008	IC4603, IC4604, IC4605, IC4606, NGC6144, M4, SH2-9 30min RGB May 2008

Comet Holmes 17P Perseus 6 min RGB November 10, 2007	B291 B292 B293 B87 B300 Sagittarius 15min HaRGB June 2007	M13 NGC6205 Hercules 15min RGB May 2007	M12 NGC6218 Ophiuchus 15 min RGB May 2007

B146 SH2-101 SH2-100 Cygnus15min HaRGB May 2007	NGC 6888 Nova Cygnus 30min HaRGB May 2007	Nebulous Region in Taurus 15min LRGB November 2006	Sh2-240 Semeis 147 (2)Pane Mosaic 15min HaRGB October 2006

IC443 Sh2-247 NGC2174 NGC2175 Gemini and Orion (2)Pane Mosaic 15min HaRGB October 2006	IC444 IC443 Gemini 15min Ha October 2006	Sh2-276 Barnard's Loop M78 Orion 15min HaRGB October 2006	Ced214 NGC7822 NGC7762 Berk59 Cepheus 15min HaRGB October 2006

(3)Pane Mosaic IC1848 IC1805 Cassiopeia 15min HaRGB September 2006	IC1287 NGC6649 B97 B100,1 Scutum 15min HaRGB September 2006	North American and Pelican Cygnus (2)Pane Mosaic 15min HaRGB August 2006	NGC6656-M22 Sagittarius 5min HaRGB August 2006

Sh2-129 B152 Cepheus 15min. HaRGB August 2006	M7(NGC6475) Scorpius 15min HaRGB August 2006	M110 M31 M32 Andromeda HaRGB August 2006	NGC6992 NGC6995 NGC6960 Veil Nebula Cygnus (2)Pane Mosaic 15min HaRGB August 2006

IC5146 Cocoon Cygnus 15min HaRGB August 2006	NGC281 Cassiopeia 15min HaRGB August 2006	NGC6726-7 NGC6723 Sagattarius Corona Australis 15min HaRGB June 2006	NGC6357 NGC6334 Scorpius 15min HaRGB June 2006

Sh2-1 Scorpius 15min RGB May 2006	Sh2-3 NGC6302 Bug Scorpius 15min HaRGB May 2006	M81 M82 Ursa Major 15min HaRGB May 2006	M81 M82 Reflection Nebula 15min HaRGB May 2006

M24 Star Cloud Sagittarius ...... 5 min HaRGB May 2006	Snake Nebula Ophiuchus 10min RGB May 2006	IC4628 NGC6231 Scoprpius 15min HaRGB May 2006	IC4592 Scorpius 15min HaRGB (2)pane Mosaic May 2006

M16 Serpens M17 Sagattarius 45min Ha15min RGB April 2006	M8 M20 Lagoon Trifid Sagittarius HaRGB April 2006	M46 M47 Puppis 5 min LRGB February 2006	IC4592 Scorpius 15min LRGB February 2006

M42 M43 Great Orion Nebula 15min HaRGB December 2005	IC2244 Rosette Monoceros 15min HaRGB December 2005	IC2177 Seagull Monoceros 15min HaRGB December 2005	M38 IC410 IC405 Auriga 15min HaRGB December 2005

IC2118 Eridanus 15min LRGB November 2005	IC34 Horse Head Orion 30min HaRGB October 2005	NGC598 M33 Trianglum 15min HaRGB October 2005	IC1805 Heart Nebula Cassiopeia 15min HaRGB October 2005

IC1396 Cephius 15min HaRGB October 2005	IC63 Gamma Cassiopeia 5min LRGB October 2005	M52 NGC7635 Sh2-157 15min HaRGB September 2005	M45 Pleiades 15min LRGB September 2005

California Nebula 15min HaRGB September 2005	Veil Nebula 15min HaSeptember 2005	California Nebula 15min HaAugust 2005	Sh2-240 Taurus 15min HaSeptember 2005

First Light June 2005 Sierra's 3min exposure Moonlight		Double Cluster 5min RGB July 2005	North American Pelican Nebula (2)pane mosaic 60min HaJuly 2005






	Photos	Home