SkyWatcher Heliostar 100Ha 100mm f8 H-alpha Solar Telescope

Product Description

Stock Expected November - The SkyWatcher Heliostar 100Ha 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 100Ha is a precision tool for solar astronomy, offering a full suite of accessories including a 22mm 70 degree 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.

The Heliostar-100Ha conforms to and meets the transmission requirements of ISO 12312-2:2015 (Filters for the direct observation of the Sun). Always use in accordance with the instructions and exercise the utmost of caution when viewing the Sun.

Safety Information
Please exercise extreme caution when observing the Sun. Improper usage and practices can result in serious and even permanent eye damage!
Also, the 20mm blocking filter in the removable eyepiece diagonal is part of Heliostar's safety features. Do not use this telescope with any other type of diagonal.

Specifications
Magnification (with eyepiece supplied): x36.4
Eyepiece Supplied (1.25"): 22mm, 70° UltraWide
Telescope Focal Length: 800mm (f/8)
Primary Aperture: 100mm
Etalon bandwidth: <0.5 Angstrom
Tuning method: Pressure tuning
Integrated Sky-Watcher Trifid Tuner and Solis Etalon Technology
Exit opening 20mm
20mm Block Filter
90° (1.25") Solar Diagonal
Built-in Solar Guider
2” Dual-Speed Crayford Focuser
Tube Rings, Integrated Carrying Handle and 45mm Dovetail Bar with 1/4-20 tripod threads
Back Focus: 20mm
Suitable for CCD camera imaging with 1.25" adaptor and back focus of 60mm
Solar Image Size: 7.6mm
Safety Compliance Certification: ISO12312-2:2015
OTA Length: 760mm
OTA Weight: 6kg
Supplied in Hard Shell Case