A Gallery of Images Taken at Fresno State's station at Sierra Remote Observatories.

Click here for the home page of Sierra Remote Observatories
(Fresno State's telescope is in Observatory #7.)

M16 from SRO
M16, the Eagle Nebula in Serpens
, 2010 June 13, full-color (L made from H alpha 61 x 30s, R 25 x 30s, G 25 x 30s, B 41 x 30s) unguided STL-11000M image at f/8 and post-processed with Neat Image by F. Ringwald, processed by Gerald Rude.


M1 
from SRO
M1, the Crab Nebula in Taurus
, 2008 September 26 and October 22, 24, and 26, full-color (L 23 x 180s, R 9 x 180s + H alpha 9 x 180s, G 5 x 180s, B 9 x 180s) unguided STL-11000M image at f/8 and post-processed with Neat Image by F. Ringwald.

spectrum plot of Vega
The spectrum of Vega
, 2009 June 17. This is an intensity versus wavelength plot, with a dispersion of 0.72 nm/pixel and a spectral resolution of 1.6 nm (16 Angstroms). It was extracted from a single dark-subtracted 0.1-s STL-11000M exposure, taken through a transmission grating taken from a Rainbow Optics Star Spectroscope and fitted into the DFM filter wheel by F. Ringwald.

spectrum plot of Vega
The spectrum of Vega
, 2009 June 17. The image of Vega is to the right of the spectrum. This is a single dark-subtracted 0.1-s STL-11000M exposure, taken through a transmission grating taken from a Rainbow Optics Star Spectroscope and fitted into the DFM filter wheel by F. Ringwald.


h and chi Persei, the double cluster in Perseus
h and chi Persei, the double cluster in Perseus
, 2008 September 28. This is a median-combined composite of 5x300-s unguided, dark-subtracted, full-color exposures, taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 800 through a Canon EF 200mm f/2.8L II USM lens by F. Ringwald.

M31, the Great Galaxy in Andromeda
M31, the Great Galaxy in Andromeda
, 2008 September 27. This is a median-combined composite of 5x600-s unguided, dark-subtracted, full-color exposures, taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 800 through a Canon EF 200mm f/2.8L II USM lens and unsharp-masked by F. Ringwald.

The Rosette Nebula in Monoceros the Unicorn
NGC 2237-9,46, the Rosette Nebula in Monoceros the Unicorn
, 2008 September 28. This is a median-combined composite of 7x300s unguided, dark-subtracted, full-color exposures, taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 1600 through a Canon EF 200mm f/2.8L II USM lens by F. Ringwald.
The 
Heavenly G
The Heavenly G
, also known as the Galactic Anti-Center, 2008 November 30. This is a median-combined composite of 3x600s unguided, dark-subtracted, full-color exposures, taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF 15mm f/2.8 fisheye lens and processed with GradientXterminator by F. Ringwald.

The 
northern Milky Way, centered on Cassiopeia
The northern Milky Way, centered on Cassiopeia
, 2008 November 30. This is a median-combined composite of 3x600-s unguided, dark-subtracted, full-color exposures, taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF 15mm f/2.8 fisheye lens by F. Ringwald.


The Heavenly G
The Heavenly G
, also known as the Galactic Anti-Center, 2008 November 30. This is a median-combined composite of 9x30s unguided, dark-subtracted, full-color exposures, taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 1600 through a Canon EF 15mm f/2.8 fisheye lens and processed with Photoshop's auto-curves and auto-color-adjust functions by F. Ringwald.

NGC 7293, the Helix Nebula in Aquarius
NGC 7293, the Helix Planetary Nebula in Aquarius
, 2008 September 25 and 26, full-color (L 27 x 180s through an Astrodon Clear filter + H alpha 29 x 180s, R 9 x 180s, V 5 x 180s, B 9 x 180s) unguided STL-11000M image at f/8 by F. Ringwald and processed by James Rubio.


M27, the 
Dumbbell Nebula in Vulpecula
M27, the Dumbbell Planetary Nebula in Vulpecula
(the Fox with a Duck), 2008 September 23, 25, and 26, full-color (L 27 x 60s through an Astrodon Clear filter + H alpha 9 x 180s and gamma-log scaled, R 9 x 60s + H alpha 9 x 180s, V 5 x 50s, B 9 x 60s) unguided STL-11000M image at f/8 by F. Ringwald and processed by Cleotilde Ruiz.

M27, the Dumbbell 
Nebula in Vulpecula
M27, the Dumbbell Planetary Nebula in Vulpecula
(the Fox with a Duck), 2008 September 23, 25, and 26, full-color (L 27 x 60s through an Astrodon Clear filter and gamma-log scaled, R 9 x 60s + H alpha 9x180s, V 5 x 50s, B 9 x 60s) unguided STL-11000M image at f/8 by F. Ringwald and processed by Cleotilde Ruiz.

NGC 253, the Silver Coin Galaxy in Sculptor
NGC 253, the Silver Coin Galaxy in Sculptor
, 2008 September 24, full-color (L 27 x 60s through an Astrodon Clear filter + H alpha 9 x 60s, R 9 x 60s, V 5 x 60s, B 9 x 60s) unguided STL-11000M image at f/8 by F. Ringwald and processed by Cleotilde Ruiz.


NGC 1275 and the Perseus Cluster of Galaxies
NGC 1275 and the Perseus Cluster of Galaxies
, 2008 September 25, full-color (L 17 x 180s through an Astrodon Clear filter, R 9 x 180s, V 5 x 180s, B 9 x 180s) unguided STL-11000M image at f/8 by F. Ringwald and processed by James Rubio.



IC 1613, dwarf irregular Local Group galaxy in Cetus
IC 1613, dwarf irregular Local Group galaxy in Cetus the Whale
, 2008 September 26 and October 26, full-color (L 35 x 180s through an Astrodon Clear filter + H alpha 9 x 180s, R 9 x 180s, V 5 x 180s, B 9 x 180s) unguided STL-11000M image at f/8 by F. Ringwald and processed by James Rubio.

NGC 6888, the Crescent Nebula in 
Cygnus
NGC 6888, the Crescent Nebula in Cygnus
, 2008 June 7, full-color (L 15 x 180s through an Astrodon Clear filter + H alpha 9 x 180s, R 9 x 180s, V 5 x 180s, B 9 x 180s) unguided STL-11000M image at f/8 by F. Ringwald.



Five-day-old moon 
through the guidescope
Five-day-old Moon
, 2008 June 8. This is a single full-color, unguided, unsharp-masked 1/30-s exposure with a Canon-EOS 20Da DSLR astrocamera at ISO 100 through the Meade 127 ED APO f/7.5 guidescope by F. Ringwald. First guidescope image!




Northern Cygnus
The North America Nebula (left) and the Gamma Cygni Nebula (right)
, 2008 June 8. This is a median-combined composite of 5x600s unguided, dark-subtracted, full-color exposures, taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 800 through a Canon EF-S 17-85mm f/4-5.6 zoom lens with F=85mm at f5.6 by F. Ringwald. First piggybacked image!

M101, spiral galaxy in Ursa Major
M101, the Whirlpool Galaxy in Ursa Major
, 2008 June 5, full-color (L 9 x 180s through an Astrodon Clear filter, R 14 x 180s + H alpha 14 x 180s, V 8 x 180s, B 14 x 180s) unguided STL-11000M image at f/8 by F. Ringwald. First color image!

Abell 2151, 
cluster of galaxies in Hercules
Abell 2151, cluster of galaxies in Hercules
, 2008 June 6, full-color (L 15 x 180s through an Astrodon Clear filter, R 7 x 180s, V 5 x 180s, B 8 x 180s) unguided STL-11000M image at f/8 by F. Ringwald.


Globular clusters NGC 6522 and 6528 in Sagittarius
Ancient globular star clusters NGC 6522 and 6528 in Sagittarius
, 2008 June 6, full-color (L 15 x 60s through an Astrodon Clear filter, R 7 x 60s, V 5 x 60s, B 7 x 60s) unguided STL-11000M image at f/8 by F. Ringwald.

Fresno State's 16-inch telescope at 
Sierra Remote Observatories
Fresno State's 16-inch telescope at Sierra Remote Observatories
, 2008 June 6. Snapshot by F. Ringwald.

Fresno State's 16-inch telescope at 
Sierra Remote Observatories
Fresno State's 16-inch telescope at Sierra Remote Observatories
, 2008 June 6. Snapshot by F. Ringwald.
Near the Galactic Center
Near the Galactic Center
, 2007 June 18. This was a single dark-subtracted, autoguided 600-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF-S 17-85mm f/4-5.6 zoom lens with F=53mm at f5.6 and unsharp-masked by F. Ringwald.

The North 
Circumpolar Sky
The North Circumpolar Sky
, 2007 June 19. This was a single unguided 30-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 1600 through a Canon EF 15mm f/2.8 fisheye lens by F. Ringwald.

An Iridium flare in the 
North Circumpolar Sky
An Iridium flare in the North Circumpolar Sky
, 2007 June 19. This was a single 120-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 1600 through a Canon EF 15mm f/2.8 fisheye lens by F. Ringwald.
The
Our site mascot Mr. Red, a Red-Tailed Hawk
, 2007 June 18, snapshot with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) through a Canon EF 200mm f/2.8L II USM lens by F. Ringwald.


Moon and 
planets after sunset, 2007 June 19
The Moon and planets after sunset
, 2007 June 19, 9:28 PDT. Can you spot the sickle of Leo?. This was a single 5-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF-S 17-85mm f/4-5.6 zoom lens with F=26mm at f4.5 with titles added with Photoshop by F. Ringwald.
The Milky Way with an Iridium flare and airplane trail
The Milky Way with an Iridium Flare and an airplane trail
, 2007 June 19. This was a single 120-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 1600 through a Canon EF 15mm f/2.8 fisheye lens by F. Ringwald.
The
The DFM Engineering 16-inch telescope
, 2007 December 16, snapshot by Greg Morgan.

The
The DFM Engineering 16-inch telescope
, 2007 December 16, snapshot by Greg Morgan.

The
The DFM Engineering 16-inch telescope
, 2007 December 16, snapshot by Greg Morgan.


A Gallery of Images Taken near Bald Mountain.

This site is at an altitude of 1910 m (6266 feet), about 10 miles from Shaver Lake.
The Summer Triangle
The Summer Triangle
, 2006 July 15. This was a single dark-subtracted, autoguided 600-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF 15mm f/2.8 fisheye lens by F. Ringwald.

Yuck
Looking down on the temperature inversion over Fresno, which Greg Morgan calls "the Yuck layer", 2006 July 28. This was a snapshot with a Canon 20Da DSLR camera by F. Ringwald.

The Northern Milky Way
The Northern Milky Way
, 2006 August 26. This was a single dark-subtracted, unguided 1200-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 200 through a Canon EF 15mm f/2.8 fisheye lens by F. Ringwald.

Mel at 
the Bald Spot
Mel Helm at the Bald Spot
, 2006 July 28. This was a snapshot with a Canon 20Da DSLR camera by F. Ringwald.

Click here for Melvin R. Helm Astrophotography.

The 
Circumpolar Constellations
The Circumpolar Constellations
, 2006 July 28. This was a single dark-subtracted, unguided 60-s exposure taken with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 1600 through a Canon EF 15mm f/2.8 fisheye lens by F. Ringwald.

Greg at the 
Bald Spot
Greg Morgan ready for a night of observing
, 2006 July 1. This was a snapshot with a Canon 20Da DSLR camera by F. Ringwald.

Click here for Old Star Light, Greg's astrophotography website.


A Gallery of Images Taken at Courtright Reservoir.

Click here for images of Courtright during the daytime.

This site is at an altitude of 2500 m (8200 feet) in the Sierra Nevada.

City Lights 
Devouring the Milky Way
City Light Devouring the Milky Way
, 2006 July 21. This is a single dark-subtracted, 1200-s autoguided exposure with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 200 through a Canon EF 15-mm f/2.8 fisheye lens by F. Ringwald.



The 
Galactic Center
The Galactic Center
, 2006 July 21. This is the same exposure as at left, cropped and with gradients removed with GradientXterminator and Photoshop by F. Ringwald.




The Central 
Valley Astronomers at Courtright
The Central Valley Astronomers at Courtright
, 2006 June 24. From left to right are Dale Lohrmann, Greg Morgan (sitting), Dexter Chumley, Clarence Noell, and Fred Lusk. This is a hand-held 3.2-s exposure with a Canon 20Da DSLR camera at ISO 1600 through an image-stabilized Canon EF-S 17-85mm f/4-5.6 zoom lens with F=20 mm at f/4.0 by F. Ringwald.

North Circumpolar Star Trails
North Circumpolar Star Trails
, 2005 September 3. This is a several-minute exposure on Agfacolor Vista 400 film in a Promaster 2000PK 35-mm SLR camera through a Promaster zoom lens with F=35 mm at f/3.5 with the 4"x5" print scanned at 600 dpi, resampled, and reduced with Photoshop by F. Ringwald.

Greg Morgan Observing
Greg Morgan Observing
, 2005 September 3. This is a 0.5-s exposure on Agfacolor Vista 400 film in a Promaster 2000PK 35-mm SLR camera through a Promaster zoom lens with F=35 mm at f/3.5 with the 4"x5" print scanned at 600 dpi, resampled, reduced, and contrast-enhanced with Photoshop by F. Ringwald.

The Zodiacal Light
The Zodiacal Light, also called "the False Dawn"
, 2005 September 3. This is a several-minute exposure on Agfacolor Vista 400 film in a Promaster 2000PK 35-mm SLR camera through a Promaster zoom lens with F=35 mm at f/3.5 with the 4"x5" print scanned at 600 dpi, resampled, and reduced with GradX and Photoshop by F. Ringwald.



North Circumpolar Star Trails
North Circumpolar Star Trails
, 2005 September 3. This is a several-minute exposure on Agfacolor Vista 400 film in a Promaster 2000PK 35-mm SLR camera through a Promaster zoom lens with F=35 mm at f/3.5 with the 4"x5" print scanned at 600 dpi, resampled, and reduced with Photoshop by F. Ringwald.

Star trails with meteor
Star trails with meteor
(center bottom), 2005 September 3. This is a several-minute exposure on Agfacolor Vista 400 film in a Promaster 2000PK 35-mm SLR camera through a Promaster zoom lens with F=35 mm at f/3.5 with the 4"x5" print scanned at 600 dpi, resampled, and reduced with Photoshop by F. Ringwald.

Orion and Taurus rising
Orion and Taurus rising
, 2005 September 3. This is a several-minute exposure on Agfacolor Vista 400 film in a Promaster 2000PK 35-mm SLR camera through a Promaster zoom lens with F=35 mm at f/3.5 with the 4"x5" print scanned at 600 dpi, resampled, and reduced with Photoshop by F. Ringwald.

The constellation Hercules
The constellation Hercules
, 2005 September 3. This is a 30-s exposure with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF-S 18-55mm f/3.5-5.6 zoom lens with F=18mm at f/3.5 by F. Ringwald.

The constellation Capricornus
The constellation Capricornus
, 2005 September 3. This is a 90-s exposure with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF-S 18-55mm f/3.5-5.6 zoom lens with F=18mm at f/3.5 by F. Ringwald.

Orion and Auriga rising
Orion and Auriga rising
, 2005 September 3. This is a 300-s exposure with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF-S 18-55mm f/3.5-5.6 zoom lens with F=18mm at f/3.5 by F. Ringwald.


A Gallery of Images Taken at Hensley Lake State Park.

This site is at an altitude of 600 feet and is the regular observing site of the Central Valley Astronomers.

The Heavenly G
The Heavenly G
, also known as the Galactic Anti-Center, 2006 October 21. This is a single unguided 443-s exposure with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 400 through a Canon EF 15-mm f/2.8 fisheye lens by F. Ringwald.
An Orionid meteor
A meteor from the Orionid shower
, from the trail left by Halley's Comet, 2006 October 21. This is a single unguided 30-s exposure with a Canon-EOS 300D Digital Rebel DSLR camera (modified for astrophotography by Hutech) at ISO 1600 through a Canon EF 15-mm f/2.8 fisheye lens by F. Ringwald.
The Zodiacal Light
The Zodiacal Light
, just before dawn on 2006 October 22. This is a 209-s exposure with a Canon-EOS 20Da DSLR camera at ISO 800 through a Canon EF-S 17-85mm f/4-5.6 zoom lens with F=17mm at f4.0 by F. Ringwald.

George and Greg Morgan
George and Greg Morgan
,
2007 March 17.
Snapshot by F. Ringwald.


Cassiopeia
The constellation Cassiopeia
, 2006 October 21.
This is a single autoguided 1200-s exposure with a
Canon-EOS 300D Digital Rebel DSLR camera (modified for
astrophotography by Hutech) at ISO 400 through a
Canon EF-S 17-85mm f/4-5.6 zoom lens with F=44mm
at f5.0 by F. Ringwald.



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Last updated 2014 June 11. Web page by Dr. Ringwald (ringwald[at]csufresno.edu and replace [at] with @)
Department of Physics, California State University, Fresno. Please read this disclaimer.