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Thanks, Stephen, for all your hard work.

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.

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SOHO, the Solar & Heliospheric Observatory, is a project of international collaboration between ESA and NASA to study the Sun from its deep core to the outer corona and the solar wind.

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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.

References

Prominences:
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:
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.

Spicules
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 :)

June 7th, 2011

Calcium K (Ca-K) Telescopes and Filters are used to study the wavelength of 393.4nm. This emission line is one of two that are produced by Calcium just at the edge of the visible spectrum in a layer that is slightly lower and cooler than the layer viewed in Hydrogen-alpha. The emission line displays areas of Super Granulation Cells that are brightest and strongest in areas of high magnetic fields, such as sunspot activity and active regions. Having the ability to study the Calcium K and the Hydrogen-alpha line provides important insights into the structure, strength, and depth of these active regions.

The Calcium K line is centered at 393.4nm. This wavelength is considered to be slightly outside the visible spectrum on the UV side. While most people can visually see the violet color of the wavelength, many cannot resolve the contrast due to yellowing of the cornea. People who have had cataract surgery are often able to see considerable detail. But, it is for these reasons that the Ca-K line is typically studied via the use of cameras which are able to provide stunning details.

Internal narrowband filters allow for a <2.4 Angstrom bandpass. This is primarily an imaging system due to the difficulty of many to visually see everything that CaK has to offer.

CaK Module Pricing:

LS6CaKMDd
* Calcium Module with B600 Blocking Filter in Star Diagonal with T2 Connection.  For telescopes up to 100mm aperture and 600mm focal length
Retail Price:  $718.00

LS6CaKMDs
* Calcium Module with B600 Blocking Filter in Extension Tube with T2 Connection.  For telescopes up to 100mm aperture and 600mm focal length
Retail Price:  $718.00

LS12CaKMDd
* Calcium Module with B1200 Blocking Filter in Star Diagonal with T2 Connection.  For telescopes up to 100mm aperture and 1200mm focal length
Retail Price:  $1,018.00

LS12CaKMDs
* Calcium Module with B1200 Blocking Filter in Extension Tube with T2 Connection.  For telescopes up to 100mm aperture and 1200mm focal length
Retail Price:  $1,018.00

LS18CaKMDd
* Calcium Module with B1800 Blocking Filter in Star Diagonal with T2 Connection.   For telescopes up to 100mm aperture and 1800mm focal length
Retail Price:  $1,194.00

LS18CaKMDs
* Calcium Module with B1800 Blocking Filter in Extension Tube with T2 Connection.  For telescopes up to 100mm aperture and 1800mm focal length
Retail Price:  $1,194.00

LS34CaKMD
* Calcium Module with B3400 Blocking Filter in Extension Tube with T2 Connection.   For telescopes up to 100mm aperture and 3400mm focal length
Retail Price:  $2,034.00

To make a purchase, contact us directly or buy from a dealer. Prices are shown in US dollars and are subject to change without notice.

Customer Solar Images:

No one brings you closer to our nearest Star than Lunt Solar Systems… the next generation of Solar Instrumentation.

About Lunt Solar Systems LLC…

Lunt Solar Systems is a manufacturing and sales facility located in Tucson, Arizona. Lunt Solar designs, fabricates, assembles, and tests solar telescopes and solar filters. Whether you are looking for a dedicated solar telescope or a solar filter for attachment to your own astronomy telescope, we can help. Solar telescope models start at $598 for an LS35THa (telescope) or the only slightly more expensive LS50FHa (filter), all the way thru the 152THa Solar Telescope. Solar observing is both fun and educational. Don’t miss out on Solar Maximum.

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Lunt Solar Systems LLC

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Telephone: 1-877-344-7348
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