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Lunt Solar CaK Filter

A very nice image from Florida.

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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 :)

February 25th, 2011

 

The addition of a secondary front-mounted interference filter and the upgrade of the rear trimming filter  transforms the Lunt LS60THa  into a superb visually enhanced instrument with the ability to also image the Sun utilizing basic camera equipment.

Adding the front filter provides a view of the Sun in virtual 3D. An active ball of churning boiling gasses that spew from the surface in what can be violent eruptions. Cause and effect can be viewed and imaged in real time.

An upgrade to the visual system, which comes standard with the pressure tuning system, puts a research grade instrument into the hands of the observer and the imager.

True Doppler Tuning (Pressure 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 being 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 thru 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.

Probably the only Solar Telescope you will ever need.

Package Features…

  • Ultra-Narrow Band Hydrogen-alpha (656.28nm) Dedicated System.
  • A 60mm refractor based system with additional 50mm aperture secondary removable filter.
  • Dual etalons with Pressure Tuner allows for <0.5 Angstrom bandpass, providing 3D like enhanced surface detail.
  • The larger rear trimming filter allows for imaging with most basic camera equipment.
  • The system includes the clamshell with threaded holes for mounting, dust caps, and is delivered in 2 Aluminum re-enforced cases.
  • An eyepiece is NOT included, and although any eyepiece will work, we recommend the Lunt Zoom.
  • Additional accessories maybe required (see below). Please ask your dealer.

LS60THa (with Pressure Tuner & Double Stacked) Specifications:

  • Type: Dual Interference Etalon
  • Tuning: Internal Pressure Tune (Doppler True Tuning) and front Tilt
  • Aperture: 60mm (Scope) 50mm (Filter)
  • Focal Length: 500mm
  • F Ratio: 8.3
  • Bandpass: <0.5 Angstroms @ 656nm
  • Focuser: 2″ Crayford with 10:1 fine adjustment (standard) or 2″ Feather Touch with 10:1 (upgrade)
  • Mounting: Integrated clamshell style with 1/4-20 tapped base
  • Color: Pearl White with Black and Red accents
  • Diagonal: B600 or B1200 Blocking Filter
  • Storage: 2 Aluminum finished hard case with fitted foam
  • Weight: 6.6lbs (Scope) 2.5lbs (Filter)
  • Skill level: Intermediary thru advanced

LS60THa PT/DS Pricing:

The LS60THa with Pressure Tuner & additional 50mm external unobstructed etalon is available with two different focusers.  Below is a list of options and their prices:

LS60THaDS50/B600CPT
* Double Stacked system with B600 blocking filter and standard 2″ Crayford focuser
Retail Price:   $2,594.00

LS60THa50DS/B600FPT
* Double Stacked system with B600 blocking filter and upgraded 2″ Feathertouch focuser
Retail Price: US$3,014.00

LS60THaDS50/B1200CPT
* Double Stacked system with B1200 imaging upgraded blocking filter and standard 2″ Crayford focuser
Retail Price: US$2,894.00

LS60THa50DS/B1200FPT
* Double Stacked system with B1200 imaging upgraded blocking filter and upgraded 2″ Feathertouch focuser
Retail Price: US$3,314.00

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.

Optional Accessories: (see “accessories”)

Customer Solar Images:

For more images visit the Lunt Solar Image Gallery

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 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.

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Lunt Solar Systems LLC

2520 N. Coyote Drive
Suite 111
Tucson AZ 85745

luntsolarsystems.com

Telephone: 1-877-344-7348
Telephone: 520-344-7348
Fax: 520-344-7352
e-mail: sales@luntsolarsystems.com