M1, the Crab Nebula in Taurus, remnant of the supernova seen in 1054 A.D., full-color (L 7 x 300s, R 600s, G 600s, B 2 x 600s) AO-7/ST-7XE image at f/6.3 by F. Ringwald, processed by Aaron Hathaway. |
M16, the Eagle Nebula in Serpens, full-color (L made from Schuler H alpha 61 x 30s, R 25 x 30s, G 25 x 30s, B 41 x 30s, all through a Hutech IDAS light-pollution filter) ST-9E image at f/6.3 by F. Ringwald, processed by Gerald Rude. |
M27, the Dumbbell Nebula, planetary nebula in Vulpecula, full-color (L 8 x 60 s through an Orion Skyglow filter, R 10 x 30s, G 14 x 30s, B 22 x 30s, all through a Hutech IDAS filter) ST-8 image at f/6.3 binned 2x2, by F. Ringwald, Aaron Hathaway, Takako Kurimoto, Sarah Lin, Blaine Parks, and Shawn Walters. |
M57, the Ring Nebula in Lyra, full-color (R 5 min, G 5 min, B 2 x 5 min) AO-7/ST-7XE image at f/10 by F. Ringwald and G. Morgan. |
Click here for an animation of Jupiter over 4.2 hours (466 kbytes) (ST-10XME, no filter, f/38), 2003 March 25 (AVI file for Windows Media Player), by Greg Morgan. A full descrption is here: Io transits Jupiter, its shadow follows, then Europa emerges from left. Click here for the Jupiter Gallery. |
NGC 891, edge-on galaxy in Cassiopeia, full-color (L 5 x 600s, R 600s, G 600s, B 2 x 960s) AO-7/ST-7XE image at f/6.3 by F. Ringwald, processed by Aaron Hathaway. Click here for the Galaxy Gallery. |
M20, the Trifid Nebula (top) and M8, the Lagoon Nebula (bottom), full-color (L 9 x 180s through an Orion Skyglow filter, R 9 x 180s, G 9 x 180s, B 13 x 180s, all through a Hutech IDAS light-polllution filter) ST-8 exposures through the 70-mm guidescope at f/5.7 and unsharp-masked by F. Ringwald, processed by Michelle Meyers. |
The Moon, 2002 August 18, 1-second exposure at f/10 on 35-mm Kodak Gold 100 film, with the 4"x5" print scanned at 600 dpi, resampled, and reduced by 50% by F. Ringwald. Click here for the Moon Gallery. Click here for the Eclipse Gallery. |
The Sun's atmosphere awakens as the Sun comes out of solar minimum, 2022 April 30 image in H alpha light, Registax composite of 529 exposures with the prominences shot separately with longer exposures with a Lumenera SKYnyx 2-2 monochrome USB camera through a Coronado Helios 1 (70mm, f/5.7, 0.8nm bandpass) solar telescope and wavelet processed and colorized by Frederick A. Ringwald. Click here for the Solar Gallery. |
The Sun in white light, 1/8-s exposure on 200-speed Kodak Gold 35-mm film, through an Orion 90mm refractor and an Orion full-aperture glass solar filter at f/10 by F. Ringwald. Click here for the Solar Gallery. |
Mercury, near Greatest Western Elongation, 2003 September 27, average of 100 x 0.11-s ST-7XE exposures at f/20 (with a 2x Barlow lens) by F. Ringwald, processed with unsharp masking and local adaptative sharpening by Aaron Hathaway. |
Venus, 2005 November 18, full-color Registax stack of 40 (out of 548) x 1/30-s unfiltered Philips ToUcam exposures at f/20 (with a 2x Barlow lens) by F. Ringwald, processed by Jose Ortiz. The colors are from dispersion in Earth's atmosphere. |
Mars, 2005 November 17, full-color sharpened Registax stack of 1/30s Philips ToUcam exposures at f/20 by Ashton Ellis. Click here for the Mars Gallery. |
Jupiter and its Great Red Spot, 2003 February 23 at 6:13 UT, full-color (255 images taken in 30 min, 42 used: R 10 x 0.33s, G 14 x 0.33s, B 18 x 0.33s) ST-10XME eyepiece projection at f/38 (click here for a short animation with no filter) (AVI file for Windows Media Player), by Greg Morgan. Click here for the Jupiter Gallery. |
Saturn, 2006 December 4, full-color sharpened Registax stack of Philips ToUcam exposures at f/20 (with a 2x Barlow lens) by Jeraldo Martinez. Click here for the Saturn Gallery. |
Uranus and its moons (from top to bottom: Umbriel, Miranda, Oberon, Ariel, Titania), 2003 October 12, full-color (L 36 x 1.0s, R 16 x 3.0s, G 16 x 3.0s, B 16 x 5.0s) ST-7XE image at f/10 by Matthew Garrett. |
Neptune and its moon Triton, 2003 October 12, full-color (L 5 x 1.0s, R 5 x 3.0s, G 5 x 3.0s, B 5 x 5.0s) ST-7XE image at f/10 by Matthew Garrett. |
Pluto at V = 13.8, 2004 May 13, 9 x 300-s ST-7XE exposures through the 70-mm guidescope at f/5.7 with a Hutech IDAS light-pollution filter by F. Ringwald. |
Asteroid 4 Vesta, 2006 April 17, 32 x 10-s ST-9XE exposures (with 60-s delays between each) at f/6.3 through a 9.0-nm Schuler H alpha filter by F. Ringwald. |
Comet Machholz (C/2004 Q2), 2005 January 30, a single 300-s exposure with a Canon-EOS 300D Digital Rebel AstroCamera (modified for astrophotography by Hutech) at ISO 1600 through the 70-mm guidescope at f/5.7 with a Hutech IDAS light-pollution filter by F. Ringwald. |
The Moon and Venus. (The reflected Earthshine on the Moon is called the "Old Moon in the New Moon's Arms.") This is a 1/15-second exposure on 800-speed Fujicolor Superia X-Tra film, through a zoom telephoto lens with f = 135 mm at f/4 and post-processed with Neat Image, by F. Ringwald. |
NGC 7008, planetary nebula in the constellation Cygnus (the Swan), full-color (L 11 x 20s, R 5 x 20s, G 5 x 20s, B 9 x 20s, all through a Hutech IDAS light-pollution filter) ST-9XE exposures at f/6.3 by F. Ringwald, processed by Steve Rodriguez. |
M3, globular cluster in the constellation Canes Venatici (the Hunting Dogs), full-color (L 11 x 20s, R 5 x 20s, G 5 x 20s, B 9 x 20s, all through a Hutech IDAS light-pollution filter) ST-9XE exposures at f/6.3 by F. Ringwald, processed by Steve Rodriguez. Click here for the Globular Cluster Gallery. |
M11, "the Wild Ducks" (open cluster in Scutum), full-color (L 11 x 20s, R 5 x 20s, G 5 x 20s, B 9 x 20s, all through a Hutech IDAS light-pollution filter) ST-9XE image at f/6.3 by Ben Zastnovik. Click here for the Open Cluster Gallery. |
61 Cygni, nearby double star system, full-color ToUcam image at f/20 (with a 2x Barlow lens) by F. Ringwald. Click here for the Bright and Multiple Stars Gallery. |
M45, the Pleiades, open cluster in Taurus, full-color (L 79 x 180s, R 15 x 180s, G 15 x 180s, B 15 x 300s, all through a Hutech IDAS light-pollution filter) ST-9XE image through the 70-mm guidescope at f/5.7 by F. Ringwald. Click here for the Open Cluster Gallery. |
Wide-field image of the Moon, median of 25 x 0.1-second ST-9XE exposures through the 70-mm guidescope at f/5.7 through a 9.0-nm Schuler H alpha filter and unsharp-masked by F. Ringwald. |
M17, the Swan Nebula, full-color (L 9 x 180s through an Orion Skyglow filter, R 9 x 180s, G 9 x 180s, B 13 x 180s, all through a Hutech IDAS light-pollution filter) ST-7XE exposures through the 70-mm guidescope at f/5.7 by F. Ringwald, processed by Michelle Meyers. |
M42, the Great Nebula in Orion, 2 x 180s ST-8 exposures through the 70-mm guidescope at f/5.7 with a 4.5-nm Custom Scientific H alpha filter, processed by digital development, by F. Ringwald. |
IC 434, the Horsehead Nebula (center), and NGC 2024, the Flame Nebula (bottom left, near the bright star Zeta Orionis, or Alnitak), full-color (L 11 x 180s, R 5 x 180s, G 5 x 180s, B 9 x 180s, all through a Hutech IDAS light-pollution filter) ST-9XE exposures through the 70-mm guidescope at f/5.7 by Jonathan Roveto and Kenia Velasco. |
M52 (at top left) and NGC 7635, the Bubble Nebula, open cluster and nebulosity in Cassiopeia, full-color (L 79 x 180s, R 15 x 180s, G 15 x 180s, B 15 x 300s, all through a Hutech IDAS light-pollution filter) ST-9XE image through the 70-mm guidescope at f/5.7 by F. Ringwald, processed by David Baer. |
M42, the Great Nebula in Orion, full-color (L 79 x 180s, R 15 x 180s, G 15 x 180s, B 15 x 300s, all through a Hutech IDAS light-pollution filter) ST-9XE image through the 70-mm guidescope at f/5.7 by Jaime Vargas. |
The Coathanger, also called Collinder 399, asterism in Vulpecula, full-color (L 27 x 120s, R 5 x 120s, G 5 x 120s, B 9 x 120s, all through a Hutech IDAS light-pollution filter) ST-9XE image through the 70-mm guidescope at f/5.7 by F. Ringwald, processed by Zachary Girazian. |
The Southern Half of the North America Nebula (NGC 7000) in Cygnus, median of 25 x 120-second ST-9XE exposures through the 70-mm guidescope at f/5.7 through a 9.0-nm Schuler H alpha filter by F. Ringwald, processed by Shawn Walters. |
NGC 2237-9,46, the Rosette Nebula, surrounding open cluster NGC 2244 in Monoceros, full-color (L made from L 9 x 600s + Schuler H alpha 3 x 600s, R 3 x 600s, G 3 x 600s, B 5 x 600s) ST-9XE image through the 70-mm guidescope at f/5.7 by F. Ringwald. |
NGC 2237, the Rosette Nebula in Monoceros, median of 3 x 600-second ST-9XE exposures through the 70-mm guidescope at f/5.7 through a 9.0-nm Schuler H alpha filter by F. Ringwald. |