More products from the brand :Sky-Watcher

Acuter 40 H-alpha sunglass

CHF 1'099.00incl. Swiss VAT

Disponible sur commande — expédition estimée : 10 jours à 3 semaines. Date d’expédition estimée : 29 October 2026.

Free delivery in Switzerland or collection in Nyon

Acuter 40 H-alpha solar telescope - The versatile and innovative H-alpha solar telescope

The Acuter Elite Phoenix 40 is a new-generation solar telescope designed to observe our star in stunning detail. Thanks to a 40 mm H-alpha standard at the front and an integrated blocking filter, it reveals the Sun's most dynamic structures: protuberances, filaments, flares and active patches appear in high definition in intense red light, filtered around 656 nm. With a bandwidth of less than 0.6 Ångström, this telescope rivals much more expensive instruments.

But the Phoenix 40 doesn't stop there: with just a few flicks of the wrist, it can also become a classic 80 mm f/5 refractor for deep-sky and planetary observation. This rare versatility makes it the ideal two-in-one instrument for curious astronomers, educators or experienced amateurs.

Main technical data

Specification Detail
Opening in solar mode 40 mm (H-alpha)
Opening in visual mode 80 mm (achromatic refractor)
Focal length 400 mm
F/D ratio f/10 (solar), f/5 (visual)
H-alpha spectral range < 0.6 Å
Standard setting By pressure (fine tuning)
Blocking filter 8 mm integrated into the solar angle drive
Focuser 1.25″ rotating crayford - 360° locking
Supplied eyepiece Zoom 5-16 mm (magnifications 25× to 80×)
Recommended frame Sky-Watcher SolarQuest (Solar Go-To)
Smartphone holder Included (universal for H-alpha photo)
Mounting 45 mm dovetail bar with 1/4-20 pitch
Tube weight 2 kg
Tube length 412 mm
Safety compliance ISO 12312-2:2015
Carrying case Includes aluminum with foam cut-out

Two instruments in one: solar and celestial

The Phoenix 40 is one of the few telescopes capable of transformation. By simply removing the standard and the solar bent reflector, then installing the classic diagonal mirror supplied, it becomes a true refractor 80/400. Ideal for nebulae, open clusters, the Moon or Jupiter, it can be used with standard 1.25″ eyepieces and can accommodate short CCD or CMOS cameras (55 mm backfocus or less).

Sun observation in complete safety

Thanks to its ISO-compliant design, integrated solar finder and blocking filter, the Phoenix 40 guarantees maximum safety during H-alpha observations. However, it is crucial to always use the telescope with the original components supplied (in particular, the solar bent reflector) and never to point it at the Sun without these protections.

For solar photo enthusiasts

Supplied with a universal smartphone adapter, it makes it easy to capture spectacular images of the solar chromosphere. It is also compatible with 1.25″ astronomical cameras for professional results. Generous backfocusing makes it easy to focus, even with more complex systems including Barlow or filter wheel.

Conclusion

The Acuter Elite Phoenix 40 is much more than a solar telescope: it's an evolutionary, compact and affordable observation platform. High-performance in H-alpha, versatile in night mode, it is a unique solution for exploring the Sun... and the stars. An ideal instrument for schools, astronomy clubs, curious enthusiasts and lovers of beautiful images.

Products in the same category

ACUTER Solarus 80 avec monture
ACUTER Solarus 80 with mount
CHF 649.00
Lunt LS50THa Kit Standard
Lunt LS50THa Standard Kit
CHF 1'689.00
Lunt LS60MT Kit Premium
Lunt LS60MT Premium Kit
CHF 3'199.00
Lunt LS40THa Kit Premium
Lunt LS40THa Premium Kit
CHF 2'079.00
Lunt LS80MT Kit Premium
Lunt LS80MT Premium Kit
CHF 4'399.00
Lunt LS50THa Kit Premium
Lunt LS50THa Premium Kit
CHF 2'349.00
Lunt LS100MT Kit Standard
Lunt LS100MT Standard Kit
CHF 3'879.00
Lunt LS100MT Kit Premium
Lunt LS100MT Premium Kit
CHF 5'449.00
Lunt LS40THa Kit Enhanced
Lunt LS40THa Kit Enhanced
CHF 1'689.00
Acuter Luma-X 40ED - Edition ultra limitée
Acuter Luma-X 40ED - Ultra limited edition
CHF 1'329.00
Lunette solaire H-alpha DayStar Solar Scout SS60DS de 60 mm, version standard
DayStar Solar Scout SS60DS – 60 mm H-alpha Solar Telescope
CHF 971.40
Lunt LS60MT Kit Standard
Lunt LS60MT Standard Kit
CHF 2'169.00
Lunt LS40THa Kit Standard
Lunt LS40THa Standard Kit
CHF 1'589.00
Lunt LS152THa B1800 Double Stack
Lunt LS152THa B1800 Double Stack
CHF 12'599.00
Lunt LS60MT Kit Enhanced
Lunt LS60MT Kit Enhanced
CHF 2'369.00
Lunt LS80MT Kit Standard
Lunt LS80MT Standard Kit
CHF 3'679.00

Our new products

Baader – FR-4, bague de butée pour coulant 31,75 mm — réf. 1905131
Baader – FR-4, bague de butée pour coulant 31,75 mm
CHF 26.10
Baader – bague allonge T-2 de 7,5 mm — réf. 1508155
Baader – bague allonge T-2 de 7,5 mm
CHF 19.78
Baader – bague allonge T-2 de 15 mm — réf. 1508154
Baader – bague allonge T-2 de 15 mm
CHF 21.59
Baader – bague allonge T-2 de 40 mm — réf. 1508153
Baader – bague allonge T-2 de 40 mm
CHF 24.30
Baader – adaptateur M44 femelle vers T-2 femelle — réf. 1508041
Baader – adaptateur M44 femelle vers T-2 femelle
CHF 36.94
Baader – adaptateur M43 × 1 mâle vers T-2 mâle — réf. 1508037
Baader – adaptateur M43 × 1 mâle vers T-2 mâle
CHF 29.72
Baader – adaptateur SCT 2 pouces mâle vers T-2 mâle — réf. 1508035
Baader – adaptateur SCT 2 pouces mâle vers T-2 mâle
CHF 36.94
Baader – porte-filtre 31,75 mm à raccords T-2 mâles — réf. 1508030
Baader – porte-filtre 31,75 mm à raccords T-2 mâles
CHF 31.68
Baader – bague inverseuse T-2 mâle-mâle — réf. 1508025
Baader – bague inverseuse T-2 mâle-mâle
CHF 28.81
Baader – bague inverseuse SCT 2 pouces avec porte-filtre M48 — réf. 1508020
Baader – bague inverseuse SCT 2 pouces avec porte-filtre M48
CHF 27.01
[category_menu_mobile]