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Oklahoma City Sky Clock Summary.  Click for details.

 

American Horse Lake Sky Clock Summary.  Click for details.

Selman Living Lab Observatory Sky Clock Summary.  Click for details.

Comets 2004

All images on this page were taken with a Meade LX200GPS SMT 10" Schmidt-Cassegrain telescope with a Meade LPI (Lunar Planetary Imager) USB camera.  The LPI is a 640x480 resolution color CMOS camera.  The LPI's field of view is equivalent to approximately a 6mm eyepiece. Unless otherwise noted, all images were taken from my home in Western Oklahoma City.  Newest images are at the top of the page.  Or maybe it's my favorite images at the top of the page.  I haven't decided yet.

Jupiter at f/6.3, January 30, 2004.

This image shows all four of the Galilean moons.  From left to right, Io, Ganymede, Europa and Callisto way up in the upper right.

 

 

 

 

 

Jupiter at f/20, January 30, 2004.

Europa and Ganymede are the moons.

 

 

 

 

 

 

 

 

 

Jupiter at f/30, January 30, 2004.

Ganymede was in front of Jupiter earlier this same evening and I was hoping to image multiples of its transit.  Unfortunately, I couldn't shoot through the tree in the way.

 

 

 

 

 

 

 

 

M50 at f/6.3, January 30, 2004.

This one of the Messier objects and is an open star cluster.  There are many more stars in this cluster than show up here but the LPI camera can't pick them up to well at least so far.

I've got to develop some new techniques for clusters.

 

 

 

 

 

 

 

Saturn at f/10, January 30, 2004.

A new and better image of Saturn. I like this one very much.

 

 

 

 

Saturn at f/20, January 30, 2004.

I like this one better still.

 

 

 

 

 

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NGC2440 at f/6.3, Janary 30, 2004.

Yeah I know, not much to see because the nebula is too small.  It's that blue smudge at center right.  This is a magnitude 10, planetary nebula so it's quite dim and quite small.  The LPI could capture it only at f/6.3.  The central star in this nebula is 30 times hotter than our own sun but can't be seen with amateur telescopes because it's over 3,600 light years distant and obscured by the nebula's gasses.

 

 

 

 

 

M42 at f/6.3.  January 18, 2004.

Seeing was quite good this night so I went after this deep sky object once again.  The Great Orion Nebula is in the sword of the constellation, Orion.

If you compare this with the Trapazeum image below, these images are of the same region, it's obvious what some better seeing can do for these dimmer objects.  That and I'm getting better at the black art of processing images.

This image is the result of 75, 8 second exposures stacked and combined in Registax processing software.

 

 

 

 

 

Saturn at f/10, October 21, 2003.  This is by far the best image I've captured of Saturn (until January 30, 2004).  The image was taken at about 3:00 AM during a break in what was otherwise a very foggy night.  Seeing was excellent during this short period of time.  Unfortunately the fog returned before I could take additional images at f/20.

The Cassini Division, the gap between the inner and outer rings is clearly visible in this image and can often be seen with a medium sized telescope on dark, still nights.  The planet's banding, though quite faint, is also sometimes visible.

 

Mars at f/10, November 3, 2003.  Since opposition in August, 2003, Mars is more and more difficult to image.  The top of the disk clearly shows a polar cap and darker surface features are visible.

 

 

Crater Copernicus at f/10, November 3, 2003.

 

 

 

 

 

 

 

 

 

Crater Plato at f/10, November 3, 2003. 

One of my favorite images of the Moon.  Mare Frigoris (Sea of Cold) is above the crater.  Mare Imbrium (See of Rains) is below.  This crater is clearly visible with a good pair of binoculars.  It is just below the north pole of the moon.  

The smooth crater floor of Plato is a result of lava flows that partially filled the crater after it was formed.  Most craters on the moon have central peaks (see the Copernicus image above.) These same lava flows created the maria or seas on the surface of the moon.

As you can see, imaging the moon with the LPI is this camera's best application.  Imaging and viewing close to the sun's terminator is always best because the long shadows bring out the surface features.

 

 

 

 

 

 

 

Mars at f/20, January 1, 2004

This image, shot at f/20, illustrates just how much smaller the apparent size of the planet is since the August 2003 opposition.  The planet's disk in this image is slightly larger than the November 3 image above but this image is shot at twice the magnification.  In August, Mars' apparent size was closer to the Venus image below.

 

Venus at f/20, January 1, 2004

Venus is difficult to view and image because of its proximity to the sun.  It can be seen only shortly after sunset in the winter or shortly before sunrise during the summer.  Because of this, it is low in the sky and atmospheric turbulence can be difficult to overcome.

Venus is a bluish, generally featureless, cloud covered planet although not as blue as shown here. This was shot through a blue filter to reduce the glare from this very bright planet.  During excellent seeing and with appropriate filters some cloud features are sometimes visible.  Venus is the third brightest object in our sky (the sun and the moon are first and second) and is the only planet that is visible with the naked eye during daylight.  In the winter, look east of the sun and along the sun's path (the ecliptic) and you will see a brilliant point of light.  Don't look away or you'll lose it!  In the summer look west along the ecliptic.  PLEASE!  Never look directly at the sun! 

Palus Somnii (Marsh of Sleep) at f/10, November 3, 2003.  Mare Crisium (Sea of Crises) is the dark area to the right and Mare Tranquillitatis (Sea of Tranquility) is the dark area to the left.

The Sea of Tranquility was the landing site of Apollo 11 in 1969.  The site is located in this image in the extreme southwest (lower, right) portion of the sea.

 

 

 

 

 

 

The Trapazeum in The Great Orion Nebula (M42) at f/6.3, January 2, 2004.  

This is a grouping of 4 stars in the sword of the constellation, Orion.  Meade's LPI camera can just barely image the nebulosity around these stars and only at lower magnifications provided by a 0.63 focal reducer. The nebulosity shown is a very small part, and the brightest segment of the nebula.

This image was obtained by stacking and combining over 100 exposures and processing in PhotoShop to bring out the nebulosity and darken the background.  Even so, you can see from the grainy noise in this image that this is about the limit of this camera under this seeing.

This nebula is just visible with a good pair of binoculars on a clear night.  In a reasonable size telescope, the nebula is clearly visible as a bluish/gray cloud around these stars.  Although much smaller, de Marian's Nebula (M43) is also visible right next door towards the head of the constellation.

 

Saturn at f/20. January 2, 2004.  Seeing conditions were marginal for this image however, it's very difficult to obtain a quality focus of any object at this focal ratio and with this camera even under the best of conditions.

This image was shot with a Meade #80 medium blue filter to enhance the banding on the planet.  The f/10 image above shows more accurate coloring of the planet.

 

 

 

 

 

Jupiter at f/10.  January 3, 2004.  The Great Red Spot is just visible at the lower part of the right side banding.  Again, seeing was marginal for this image.

Jupiter's banding and the four Galilean moons can be seen in a medium sized telescope.  The moons, depending on their position in their orbits, will appear as bright "stars" in line with the planet's banding.  Shadows of the larger moons cast on the planets surface are also often visible.

 

 

Jupiter at f/20.  January 3, 2004.  This image was taken right after the f/10 image above.  As you can see, detail really suffers at these higher magnifications when seeing is marginal.