Passer au contenu

Astronomie solaire

The Sun is the only object in astronomy that changes visibly within an hour, and the only one that can permanently damage your eyes in a fraction of a second. Done with proper equipment, solar observing is the most accessible branch of the hobby — no dark sky, no late night, no travel. David Astro carries solar astronomy products in Canada: hydrogen-alpha telescopes, white-light filters, Calcium-K modules, wedges and dedicated solar accessories, in Canadian inventory and shipped domestically.

Safety here is absolute rather than a matter of degree, and we will not sell an unsafe combination. If you are unsure whether a filter or setup is appropriate, ask us before you point anything at the Sun.

Filtres

CA$4,893.00 - CA$4,893.00
CA$4,893.00
CA$4,893.00 - CA$4,893.00
CA$4,893.00

Lunt LS100MT H-Alpha Solar Telescope - Standard Kit

LSS-LS100MT-Standard

Aperture: 100mm ED Doublet Focal Length: 714mm Focal Ratio: f/7.14 Bandpass: <0.4Å (Single-Stack) Blocking Filter: B1200 in 2" Diagonal Focuser...

Afficher tous les détails
CA$4,893.00 - CA$4,893.00
CA$4,893.00
CA$4,893.00 - CA$4,893.00
CA$4,893.00
CA$6,993.00 - CA$6,993.00
CA$6,993.00
CA$6,993.00 - CA$6,993.00
CA$6,993.00

Lunt Télescope Solaire Modulaire LS100MT - Pressure Tuned

LSS-LS100MT/B1800R&P

Le nouveau télescope modulaire Lunt LS100MT, doté de la meilleure résolution de sa catégorie et d'une configuration optique de qualité profession...

Afficher tous les détails
CA$6,993.00 - CA$6,993.00
CA$6,993.00
CA$6,993.00 - CA$6,993.00
CA$6,993.00
CA$13,993.00 - CA$13,993.00
CA$13,993.00
CA$13,993.00 - CA$13,993.00
CA$13,993.00

Lunt LS130MT H-Alpha Solar Telescope - Flagship Kit

LSS-LS130MT-Flagship

Aperture: 130mm ED Triplet Focal Length: 910mm Focal Ratio: f/7 Bandpass (Double-Stacked): <0.28Å Tuning: Internal Pressure-Tuned Etalons (Dopp...

Afficher tous les détails
CA$13,993.00 - CA$13,993.00
CA$13,993.00
CA$13,993.00 - CA$13,993.00
CA$13,993.00
CA$10,639.00 - CA$13,087.00
CA$10,639.00 - CA$13,087.00
CA$10,639.00 - CA$13,087.00
CA$10,639.00

Lunt Télescope Solaire Modulaire LS130MT - Pressure Tuned

Options available

Doté de la meilleure résolution de sa catégorie et d'une configuration optique de qualité professionnelle Réfracteur Triplet APO de 130 mm, Oh...

Afficher tous les détails
CA$10,639.00 - CA$13,087.00
CA$10,639.00 - CA$13,087.00
CA$10,639.00 - CA$13,087.00
CA$10,639.00
CA$10,989.00 - CA$14,731.00
CA$10,989.00 - CA$14,731.00
CA$10,989.00 - CA$14,731.00
CA$10,989.00

Lunt Télescope Solaire LS152THa - Pressure Tuned

Options available

Télescope h-alpha dédié 152 mm f/6 pour des résultats professionnels ! L'étalon interne permet une bande passante <0,65 Angström. Vérita...

Afficher tous les détails
CA$10,989.00 - CA$14,731.00
CA$10,989.00 - CA$14,731.00
CA$10,989.00 - CA$14,731.00
CA$10,989.00
CA$55,993.00 - CA$55,993.00
CA$55,993.00
CA$55,993.00 - CA$55,993.00
CA$55,993.00

Lunt Télescope Solaire Double Stack LS230THa - Pressure Tuned

LSS-LS230THa/B3400

Comprend : Système à double pile LS230THa/B3400 Mise au point Starlight Feather Touch Double contrôle du système PC-USB Anneaux de tube et pl...

Afficher tous les détails
CA$55,993.00 - CA$55,993.00
CA$55,993.00
CA$55,993.00 - CA$55,993.00
CA$55,993.00
CA$117,599.00 - CA$151,193.00
CA$117,599.00 - CA$151,193.00
CA$117,599.00 - CA$151,193.00
CA$117,599.00

Lunt Télescope Solaire LS300THa - Pressure Tuned

Options available

Télescope H-alpha dédié 300 mm F7 L'étalon interne non obstrué permet une bande passante <0,65 angström Le système à double empilement dispon...

Afficher tous les détails
CA$117,599.00 - CA$151,193.00
CA$117,599.00 - CA$151,193.00
CA$117,599.00 - CA$151,193.00
CA$117,599.00
CA$1,533.00 - CA$1,533.00
CA$1,533.00
CA$1,533.00 - CA$1,533.00
CA$1,533.00

Lunt LS40THa H-Alpha Solar Telescope - Enhanced Kit

LSS-LS40THa-Enhanced
2 en stock

40mm Aperture Dedicated Hydrogen-Alpha Solar Telescope Internal Etalon with Tilt-Tuning for <0.55Å Bandpass Enhanced Kit with Upgraded 1:1 Rack...

Afficher tous les détails
CA$1,533.00 - CA$1,533.00
CA$1,533.00
CA$1,533.00 - CA$1,533.00
CA$1,533.00
CA$2,513.00 - CA$2,513.00
CA$2,513.00
CA$2,513.00 - CA$2,513.00
CA$2,513.00

Lunt LS40THa H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS40THa-Premium
1 en stock

40mm Dedicated H-Alpha Solar Telescope Internal Double-Stack System with ≤0.35Å Bandpass B600 Blocking Filter for Full-Disk Views & Imaging In...

Afficher tous les détails
CA$2,513.00 - CA$2,513.00
CA$2,513.00
CA$2,513.00 - CA$2,513.00
CA$2,513.00
CA$1,393.00 - CA$1,393.00
CA$1,393.00
CA$1,393.00 - CA$1,393.00
CA$1,393.00

Lunt LS40THa H-Alpha Solar Telescope - Standard Kit

LSS-LS40THa-Standard-V1

40mm Aperture Dedicated Hydrogen-Alpha Solar Telescope ≤0.65Å Bandpass Front-Mounted Tilt-Tuned Etalon 6mm (B600) Blocking Filter for Visual and I...

Afficher tous les détails
CA$1,393.00 - CA$1,393.00
CA$1,393.00
CA$1,393.00 - CA$1,393.00
CA$1,393.00
CA$1,953.00 - CA$1,953.00
CA$1,953.00
CA$1,953.00 - CA$1,953.00
CA$1,953.00

Lunt LS50THa H-Alpha Solar Telescope - Enhanced Kit

LSS-LS50THa-Enhanced

Aperture: 50mm Bandpass: <0.6Å Single-Stack Tuning: Doppler True Tuning (Pressure Tuner) Focuser: 1:1 Rack & Pinion Blocking Filter: B600 (...

Afficher tous les détails
CA$1,953.00 - CA$1,953.00
CA$1,953.00
CA$1,953.00 - CA$1,953.00
CA$1,953.00
CA$2,933.00 - CA$2,933.00
CA$2,933.00
CA$2,933.00 - CA$2,933.00
CA$2,933.00

Lunt LS50THa H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS50THa-Premium

Aperture: 50mm System Bandpass: <0.30Å (Double-Stacked) Tuning: Internal Pressure Tuner (Doppler True Tuning) Blocking Filter: B600 in 1.25" Di...

Afficher tous les détails
CA$2,933.00 - CA$2,933.00
CA$2,933.00
CA$2,933.00 - CA$2,933.00
CA$2,933.00
CA$1,673.00 - CA$1,673.00
CA$1,673.00
CA$1,673.00 - CA$1,673.00
CA$1,673.00

Lunt LS50THa H-Alpha Solar Telescope - Standard Kit

LSS-LS50THa-Standard

Aperture: 50mm Focal Length: 350mm Focal Ratio: f/7 Bandpass: <0.6Å Tuning: Internal Pressure Tuner (Doppler True Tuning) Blocking Filter: B400...

Afficher tous les détails
CA$1,673.00 - CA$1,673.00
CA$1,673.00
CA$1,673.00 - CA$1,673.00
CA$1,673.00
CA$1,393.00 - CA$1,533.00
CA$1,393.00 - CA$1,533.00
CA$1,393.00 - CA$1,533.00
CA$1,393.00

Lunt Télescope Solaire LS50THa

Options available

Le Lunt Solar Telescope LS50THa est un télescope dédié h-alpha (Hydrogen Alpha Wavelength) f/7 de 50 mm. Livré avec un filtre de blocage B600 ...

Afficher tous les détails
CA$1,393.00 - CA$1,533.00
CA$1,393.00 - CA$1,533.00
CA$1,393.00 - CA$1,533.00
CA$1,393.00
CA$2,793.00 - CA$2,793.00
CA$2,793.00
CA$2,793.00 - CA$2,793.00
CA$2,793.00

Lunt LS60MT H-Alpha Solar Telescope - Enhanced Kit

LSS-LS60MT-Enhanced

Aperture: 60mm Bandpass: ≤0.4Å (Single Stack) Tuning: Internal Pressure-Tuning (Doppler True Tuning) Blocking Filter: B1200 (12mm) Focuser: Rack &...

Afficher tous les détails
CA$2,793.00 - CA$2,793.00
CA$2,793.00
CA$2,793.00 - CA$2,793.00
CA$2,793.00
CA$4,193.00 - CA$4,193.00
CA$4,193.00
CA$4,193.00 - CA$4,193.00
CA$4,193.00

Lunt LS60MT H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS60MT-Premium

Aperture: 60mm Focal Length: 420mm (F/7) Bandpass (Double-Stack): <0.28Å Tuning: Internal Pressure-Tuned Etalon (Doppler True Tuning) Blocking ...

Afficher tous les détails
CA$4,193.00 - CA$4,193.00
CA$4,193.00
CA$4,193.00 - CA$4,193.00
CA$4,193.00
CA$2,513.00 - CA$2,513.00
CA$2,513.00
CA$2,513.00 - CA$2,513.00
CA$2,513.00

Lunt LS60MT H-Alpha Solar Telescope - Standard Kit

LSS-LS60MT-Standard

Aperture: 60mm Bandpass: ≤0.4Å (Single Stack) Tuning: Internal Pressure-Tuning (Doppler True Tuning) Blocking Filter: B1200 (12mm) Focuser: Rack &...

Afficher tous les détails
CA$2,513.00 - CA$2,513.00
CA$2,513.00
CA$2,513.00 - CA$2,513.00
CA$2,513.00
CA$2,233.00 - CA$2,233.00
CA$2,233.00
CA$2,233.00 - CA$2,233.00
CA$2,233.00

Télescope Solaire Modulaire LS60MT - Pressure Tuned

LSS-LS60MT/B600R&P

Doté de la meilleure résolution de sa catégorie et d'une configuration optique de qualité professionnelle Comprend : Télescope LS60MT avec mo...

Afficher tous les détails
CA$2,233.00 - CA$2,233.00
CA$2,233.00
CA$2,233.00 - CA$2,233.00
CA$2,233.00
CA$5,033.00 - CA$5,033.00
CA$5,033.00
CA$5,033.00 - CA$5,033.00
CA$5,033.00

Lunt LS80MT H-Alpha Solar Telescope - Enhanced Kit

LSS-LS80MT-Enhanced

Aperture: 80mm ED Doublet Focal Length: 560mm Focal Ratio: f/7 Bandpass: <0.4 Å (Single-Stack) Blocking Filter: B1800 in 2" Diagonal Focuser: D...

Afficher tous les détails
CA$5,033.00 - CA$5,033.00
CA$5,033.00
CA$5,033.00 - CA$5,033.00
CA$5,033.00
CA$6,573.00 - CA$6,573.00
CA$6,573.00
CA$6,573.00 - CA$6,573.00
CA$6,573.00

Lunt LS80MT H-Alpha Solar Telescope - Premium PLUS Kit

LSS-LS80MT-Premium

Aperture: 80mm ED Doublet Focal Length: 560mm Focal Ratio: f/7 System Bandpass: <0.28Å (Double-Stacked) Tuning: Pressure-Tuned Doppler True Tun...

Afficher tous les détails
CA$6,573.00 - CA$6,573.00
CA$6,573.00
CA$6,573.00 - CA$6,573.00
CA$6,573.00
CA$4,613.00 - CA$4,613.00
CA$4,613.00
CA$4,613.00 - CA$4,613.00
CA$4,613.00

Lunt LS80MT H-Alpha Solar Telescope - Standard Kit

LSS-LS80MT-Standard

Aperture: 80mm ED Doublet Focal Length: 560mm Focal Ratio: F/7 Bandpass: ≤0.4 Ångström (Single-Stack) Tuning: Internal Pressure Tuner (Doppler Tru...

Afficher tous les détails
CA$4,613.00 - CA$4,613.00
CA$4,613.00
CA$4,613.00 - CA$4,613.00
CA$4,613.00
CA$3,633.00 - CA$4,893.00
CA$3,633.00 - CA$4,893.00
CA$3,633.00 - CA$4,893.00
CA$3,633.00

Lunt Télescope Solaire Modulaire LS80MT - Pressure Tuned

Options available

Le télescope modulaire Lunt LS80MT, doté de la meilleure résolution de sa catégorie et d'une configuration optique de qualité professionnelle ...

Afficher tous les détails
CA$3,633.00 - CA$4,893.00
CA$3,633.00 - CA$4,893.00
CA$3,633.00 - CA$4,893.00
CA$3,633.00
CA$69.00 - CA$69.00
CA$69.00
CA$69.00 - CA$69.00
CA$69.00

Lunt SunLock Solar Alignment Finder

LSS-003-385

Red Dot Sun Finder for safe, precise solar alignment Glass projection plane provides a clear target Internal 3-point set screw system locks alignm...

Afficher tous les détails
CA$69.00 - CA$69.00
CA$69.00
CA$69.00 - CA$69.00
CA$69.00
Orion Optics UK OMC-200 Full-Aperture Solar Filter (Screw Fitting)
CA$771.00 - CA$771.00
CA$771.00
CA$771.00 - CA$771.00
CA$771.00

Orion Optics UK OMC-200 Full-Aperture Solar Filter (Screw Fitting)

OOUK-OMC200-FULL-APERTURE-SOLAR-FILTER

Full-aperture solar filter for Orion Optics UK OMC-200 telescopes Secure screw-on fitting prevents accidental detachment Military-grade aluminum c...

Afficher tous les détails
CA$771.00 - CA$771.00
CA$771.00
CA$771.00 - CA$771.00
CA$771.00

Ways to Observe the Sun Safely

Different wavelengths reveal completely different Suns. White light shows the photosphere and sunspots; hydrogen-alpha shows the chromosphere with prominences and filaments; Calcium-K shows the plage network above it.

  • White-light filters: Full-aperture film or glass filters fitted in front of the objective, showing sunspots, granulation and faculae. They must always be at the front, never at the eyepiece.
  • Hydrogen-alpha telescopes: Dedicated instruments with sub-angstrom etalons that isolate the 656.28 nm line, revealing prominences at the limb and filaments and flares on the disc.
  • Solar filter modules: Etalon and blocking filter assemblies that convert a suitable refractor into a hydrogen-alpha instrument.
  • Calcium-K filters: Narrow filters at 393 nm showing the chromospheric network, best captured with a camera since the wavelength is at the edge of human sensitivity.
  • Herschel wedges: High-contrast white-light observing for refractors, diverting most solar energy out of the optical path rather than reflecting it back.
  • Solar accessories: Finders, blocking filters, tuning aids and mounting hardware designed for daytime work.

Why Choose David Astro for Solar Astronomy

This is the one category where getting the recommendation wrong has consequences beyond a disappointing view.

  • Safety verified, not assumed: We confirm that any filter is full-aperture and front-mounted, and we will not supply eyepiece-end solar filters, which can fail catastrophically under concentrated heat.
  • Aperture limits for etalon modules: Front-mounted etalons have maximum aperture and focal ratio limits, and exceeding them risks both poor performance and thermal damage. We check your telescope against them.
  • Authorized dealer: Genuine solar equipment with full manufacturer warranty — critically important in a category where counterfeit filters exist.
  • Canadian stock: Ships from Canada, with no duties or brokerage fees for Canadian orders.
  • Inspection and service: We can inspect solar filters for pinholes and coating damage, which should be done before every season.

Solar Astronomy in Canada — Frequently Asked Questions

Can I use an eyepiece-mounted solar filter?
No. Filters that screw into an eyepiece sit where the telescope has concentrated the Sun's full energy, and they can crack without warning. Only full-aperture filters mounted at the front of the telescope are safe.
White light or hydrogen-alpha first?
White light is far less expensive and shows sunspots and granulation well. Hydrogen-alpha shows prominences and surface activity that white light cannot, and is the more dramatic view, at several times the cost.
How do I know my filter is still safe?
Hold it up to a bright indoor light and look for pinholes, scratches or delamination in the coating. Any visible defect means it should be replaced, not repaired or taped.
Can I observe the Sun in winter?
Yes, and low winter sun means long atmospheric path and often poor seeing, but activity is visible year round. Cold also keeps etalon tuning more stable than a hot summer afternoon does.

Starting with solar observing?

Tell us your telescope and we will confirm a safe, effective setup. Genuine filters, Canadian stock, expert guidance.