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Description
Sky-Watcher Heliostar Overview
The Sky-Watcher Heliostar 76mm f/8.3 H-Alpha Solar Telescope is a dedicated optic for solar viewing only. This is no general-use refractor with a solar filter over the aperture�the Heliostar is built with a highly precise Solis etalon bandpass filter, refined by a Trifid tuner, to block all but a 0.55-angstrom sliver of hydrogen-alpha light. That light, in the 656.3nm wavelength, permits observation of solar phenomena in rich detail, including prominences, filaments, sunspots, and solar flares.
The Heliostar also features a blocking filter in the eyepiece diagonal and meets ISO 12312 safety standards. It comes with a 20mm 1.25" eyepiece with a 70° angle of view that provides 32x magnification and a smartphone adapter so you can capture and share the remarkable sights you see.
- 76mm objective lens
- 630mm focal length
- Focal ratio: f/8.3
- Achromatic doublet lens design, H-alpha fully multicoated design
- Integrated Solis etalon filter technology with Trifid tuning system
- Passes only hydrogen-alpha 656.3nm bandwidth, which enables detailed observation of prominences on the limb of the sun, active sunspot regions, bright plage patches, surface granulation, snake-like plasma filaments, and more
- 11.5mm, 1.25" diagonal format blocking filter
- Meets ISO 12312 safety standards
- 2" diameter focuser
- Dual-speed Crayford-style
- Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
- 20mm 70° 1.25" eyepiece, 32x magnification with this telesxcope
- Integrated Heliostar solar finder
- Tube rings and carry handle
- Vixen-style dovetail bar
- Clip-on sunshade
- Hard-shell carry case
Items Included
- Sky-Watcher Heliostar 76mm f/8.3 H-Alpha Solar Telescope (OTA Only)
- 20mm 1.25" Eyepiece
- Smartphone Adapter
- Vixen-Style Dovetail
- Set of Mounting Rings with Handle
- Clip-On Sunshade
- Hard-Shell Carrying Case
- Limited 2-Year Manufacturer Warranty
Additional Resources
No additional resources available
Sky-Watcher Heliostar Specs
| Optical Design |
Refractor
|
| Aperture |
76 mm / 3"
|
| Focal Length |
630 mm
|
| Focal Ratio |
f/8.3
|
| Focuser |
Dual-Speed Crayford
|
| Eyepiece Barrel Diameter |
1.25" on OTA
|
| Optical Design |
Refractor
|
| Aperture |
76 mm / 3"
|
| Focal Length |
630 mm
|
| Focal Ratio |
f/8.3
|
| Resolution |
1.52 Arcsec (Dawes)
1.84 Arcsec (Rayleigh) |
| Focuser |
Dual-Speed Crayford
|
| Eyepiece Barrel Diameter |
1.25" on OTA
|
| Diagonal |
90°
|
| Finderscope |
Yes
|
| Mounting |
No
|
| Optical Tube Dimensions |
Length: 24" / 61 cm
|
| Filtration Wavelength |
Hydrogen-alpha
|
| Bandpass |
<0.6 Å (Single Etalon)
|
| Blocking Filter |
11.5 mm (Internal)
|
| Payload Capacity |
No
|
| Altitude Adjustment |
No
|
| Latitude Adjustment |
No
|
| Counterweight |
No
|
| Mobile App Compatible |
No
|
| Package Weight |
19.515 lb
|
| Box Dimensions (LxWxH) |
27.7 x 13.9 x 11"
|
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Bulk Discount
| Quantity | Price |
| 2 | ₹ 507233.3 |
| 3-5 | ₹ 502057.45 |
| 5-10 | ₹ 491705.75 |
| 10+ | ₹ 481354.05 |
Bulk discount will be automatically applied during checkout based on quantity.