Sky-Watcher Heliostar 100 H-Alpha Solar Telescope/Wave 100i Mount Kit

The HELIOSTAR 100Hα is a premium high-performance 100mm hydrogen-alpha solar telescope designed for serious solar observers and imaging enthusiasts, boasting an exceptional performance of 0.5 Angstrom or better. The Heliostar 100Hα is a precision tool for solar astronomy, offering a full suite of accessories including a 22mm 70° wide-angle eyepiece, solar zenith prism, and solar guider.

Hydrogen-alpha solar observing allows you to unlock the incredible dynamics of surface of the Sun far beyond what a white light solar filter can deliver. From solar prominences on the limb of the Sun (often mistakenly called 'flares'), to active sunspot regions, bright plage patches, surface granulation, wispy, snake-like plasma filaments, and more, the star of the solar system is yours to capture in breathtaking views and images. When viewing the Sun in the narrow H-alpha bandwidth, the observer is rewarded with thrilling, awe-inspiring real-time views of our nearest star in it's full fiery majesty, seething with activity.
The HELIOSTAR-100Ha uses multiple technologies to protect the human eye during solar observation, including an infrared thermal ray reflection film, a special filter to block heat, and a filter to block UV light from entering, blocking stray light that affects observation. It uses a combination of front and rear filters to allow only monochromatic light with a wavelength of 656.28 nanometres emitted by hydrogen atoms to pass through, whilst blocking other light of different wavelengths. This allows the observation of quite active prominences in the H-Alpha band.

Sky-Watcher's Solis etalon technology allows the Heliostar-100Ha to achieve a 0.5A bandpass without the costly expense and complexity of a second etalon to achieve the same performance. This allows the observer to obtain detailed images of the solar disk right out of the box without any further expense. 

OTA

• Double-stack performance, single-stack price!

• 100mm aperture

• 760mm focal length (f/7.6)

• <0.5Å bandpass

• Integrated Heliostar solar finder

• Integrated Triffed tuner

• Solis etalon technology

• 2.8-inch dual-speed rack-and-pinion focuser

• 20mm, 1.25-inch diagonal blocking filter

• V-style dovetail

• Clip-on Sun shade

• 22mm 70° 1.25-inch eyepiece

• hard case

MOUNT

• Wave 100i GoTo strainwave head

• EQ and AZ modes

• Weighs 9.5 pounds (4.3kg)

• 22-pound (10kg) payload capacity without optional counterweight

• 33-pound (15kg) payload capacity with optional counterweight

• Steel tripod with extension

• Dual D/V hybrid saddles

• Included secondary saddle

• Latitude range from 0° to 90°

• Red LED for latitude scale and bubble level

• Wi-Fi and Bluetooth

• RA power off braking function

• RA and DEC home position functions

• Requires 12V 2A power (not included)