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Stephen Ramsden’s Corner
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Image of the week
Here is the Solar Image of the Week.
Thanks to: Howard
Lunt Solar CaK Filter
A very nice image from Florida.
Real Time Images: The Very Latest from SOHO
Lunt Solar Image Gallery
Visit this link to enter our image gallery area. View images by product.
Ha Solar Filters
HA Solar Telescopes
Optical Tube Assemblies
Lunt Solar Imaging System (LSI)
Clamshell Mounting Ring - LS60/LS80
The Sun is our Star!
.......and as you would expect, our Star is hot, bright, dynamic, and sometimes quite violent.
At 93 million miles away, we are ideally placed at a point where the Sun provides just enough warmth and energy essential to our living planet, Earth.
At only 93 million miles, the Sun is close enough for us to view its surface through a fairly inexpensive specialized scope from the comfort and relative safety (sunscreen, please) of our backyards on a clear and sunny day.
What! Astronomy during the day? Lunt Solar wants to show you how.
These look like eruptions from the edge of the Solar disk. Prominences can appear as small spiky-looking details, or large cloud-like detail with fine feather-like features. They are, in fact, ionized Hydrogen-alpha emissions being projected from the limb.
Prominences are anchored to the Sun's surface in the Mesosphere, and extend outward into the Sun's Troposphere. They typically measure many earth diameters.
Filaments are string-like features on the surface of the Sun. At high resolution they take on a 3D effect due to the cooler aspect of the suspended filament contrasted against the bright, hotter Sun.
Filaments are actually prominences being viewed against the surface.
A Spicule is a dynamic jet of gas about 500km long. They move outward at about 20km/second through the Chromosphere.
Father Angelo Secchi of the Vatican Observatory discovered them in 1877.
The Chromosphere is entirely composed of Spicules. These features can be seen as "fur" around the edge of the disk.
There's definitely stuff to look at :)
The image is shown with the optional DSII installed
The Lunt Solar Systems LS80THa/PT (pressure tuned) is a complete and dedicated solar telescope. A precision aligned ED refractor with a fully un-obstructed 80mm optical aperture, this package provides a significant step up into the Intermediary category of Daytime Solar Observing. The LS80THa/PT maintains the most advanced technology of Doppler True Tuning for fine adjustment of the center wavelength, allowing research of the Sun’s disk and surface details at increased image scale. Prominences, flares, super granulation, filaments, and active regions will be observed.
True Doppler Tuning allows for a shift into and away from the user. Adding a 3D like component to the viewing experience. While it has minimal effect on proms due to their location at the edge of the disk, it does have an effect on filaments and active regions on the surface. While looking at a filament at the center of the Sun, the user has the ability to Doppler shift from the base of the filament to the tip, following the filament through it’s structure toward you and away from you, allowing for enhanced visual and imaging capability for the observer as well as a research tool for the avid hobbyist. The pressure tuning system provides an order of magnitude more precision to the tuning of the desired features.
The LS80THa package is fully upgradeable with several options including the evolutionary Dual Internal Stack Etalon System (DSII). The DSII eliminates the need for an external doublestack etalon, reducing cost and eliminating obstructions. The system is 100% un-obstructed. The bandpass is reduced to <0.5 Angstroms. See the Sun’s weather in stunning high definition.
LS80THa/PT Specifications: (single stacked)
- Optical Aperture: 80mm (Unobstructed)
- Etalon: Internal <0.7 Angstrom
- Tuning: Internal Pressure Tune (Doppler True Tuning)
- Focal Length: 560mm
- F Ratio: 7
- Focuser: 2″ Crayford or Feather Touch
- Mounting: Integrated clamshell style with 1/4-20 tapped base
- Storage: Aluminum finished hard case with fitted foam
- Weight: 8.8 lb.
Included Accessories: (see “accessories”)
- Sun Finder: Televue Sol Searcher
- Mounting: Lunt 6″ Dovetail
- Eyepiece: Lunt Zoom Eyepiece
- Case: Aluminum Finished Hard Case with Custom Foam
The LS80THa/PT is available in several variations. Below is a list of options and their prices:
* Standard system with B1200 blocking filter and standard Crayford Focuser
Retail Price: $3,246.00
* Standard system with B1200 visual use blocking filter and upgraded Feathertouch Focuser
Retail Price: $3,665.00
* Standard system with B1800 imaging upgraded blocking filter and standard Crayford Focuser
Retail Price: $3,596.00
* Standard system with B1800 imaging upgraded blocking filter and upgraded Feathertouch Focuser
Retail Price: $4,016.00
* Internal Double Stack Module for the LS80THa. Any model of the LS80THa/PT can be internally double stacked at time of purchase or anytime thereafter. Doublestacking provides a truly enhanced high definition view the Sun’s surface details. The telescope does not need to be returned to the factory for double-stacking.
Retail Price: $1,495.00
Customer Solar Images:
- Olivier Hardy
- Ted Dobosz
- Brian Colville
- Jurij Stare
- Geert Vandenbulcke
- Zheng Chen
- Your Image Gallery here?
For more images visit the Lunt Solar Image Gallery
About Lunt Solar Systems LLC…
Lunt Solar Systems is a manufacturing and sales facility located in Tucson, Arizona. Lunt Solar design, fabricate, assemble, and test solar telescopes and solar filters. Whether you are looking for a dedicated solar telescope or a solar filter for attachment to you own astronomy telescope, we can help. Solar telescopes models start at $598 for an LS35T (telescope) or the only slightly more expensive LS50F (filter), all the way thru the 152T and the 160F. Solar observing is both fun and educational. Don’t miss out on Solar Maximum.