Sky-Watcher Heliostar 76Ha Solar Telescope
| Article number: | S11315 |
| Availability: | More on the Way to us |
| Delivery time: | Preorder Now to reserve one! |
Introducing the Sky-Watcher Heliostar 76mm H-Alpha Solar Telescope
The Heliostar 76mm H-alpha Solar Telescope brings a new light (yes, pun intended) to the Sky-Watcher family by offering a dedicated Hydrogen-alpha (Hα) solar telescope to the lineup. 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.
Just in time to catch solar maximum in 2025!!
- Double stack performance, single stack price
- 76mm aperture
- 630mm focal length
- f/8.3
- Official solar telescope of the Charlie Bates Solar Astronomy Project
- Integrated Heliostar solar finder, tube rings, and carry handle
- Integrated Triffid Tuner and Solis Etalon Technology
- <0.55Å bandpass
- H-alpha fully multicoated lens
- Achromatic doublet design
- 2-inch dual-speed Crayford focuser
- 11.5mm, 1.25” diagonal format blocking filter
- Weight: 8.4 lbs.
- Includes: OTA, mounting rings, V-style dovetail, clip-on Sun shade, 20mm 70° 1.25" eyepiece, camera phone adapter, hard-shell carrying case
| SKU | S11315 |
| Optical Specifications | |
|---|---|
| Optical Design | Achromatic |
| Lens Coating | H-alpha fully multicoated |
| Lens Design | Doublet |
| Optical Quality | Diffraction limited (1/4 wave) |
| Collimatable Cell | No (Self Aligning Cell) |
| Primary Aperture | 76mm |
| F/Ratio | 8.3 |
| Focal Length | 630mm |
| Blocking Filter Size | 11.5mm |
| Solar Image Size | 6mm |
| Bandpass | < 0.55Å |
| Mechanical Specifications | |
| Focuser Type | Crayford |
| Focuser Size | 2" |
| Focuser: Dual or Single Speed | Dual speed |
| Compression Ring | No* (Only on diagonal) |
| OTA material | Aluminum |
| Optical Tube length (inches) | 24" |
| Optical Tube weight (pounds) | 8.4 pounds |
| Mounting Rings? | Mounting Rings |
| Dovetail type | V-style |
| Accessories | |
| Eyepieces | 20mm 70º 1.25" eyepiece |
| Diagonal | 11.5mm 1.25" H-alpha blocking diagonal |
| Camera Adapter | Cell phone adapter |
| Additonal Accessories | Sun shade |
| Included finder | Heliostar solar finder |
| Manual | Digital PDF |
| Case | Yes |
| Observational Info | |
| Dawes Limit | 1.52 |
| Rayleigh Limit | 1.84 |
| Limiting Magnitude | 11.88 |
| Minimum Magnification | 7x |
| Maximum Magnification | 150x |
| Magnification with included eyepieces | 32x |
| Intended use | Solar (visual & Imaging) |