Acuter Elite Phoenix 40 H-alpha Solar Telescope
Free delivery
Designed for direct solar observation, the Acuter Elite Phoenix 40 is a dedicated H-alpha solar telescope with a 40mm front-mounted etalon and a bandwidth of less than 0.6 Angstroms. In use, it isolates surface and limb activity with striking clarity, letting prominences, flares and surface texture stand out in real time. Pressure tuning allows fine adjustment on the Sun, while the compact optical tube stays manageable on simple tracking mounts.
Acuter Elite Phoenix 40 H-alpha Solar Telescope Key Features:
- Dedicated 40mm H-alpha solar telescope for observing active solar detail
- Sub-0.6 Angstrom bandwidth reveals prominences, flares, and surface structure
- Front-mounted etalon keeps contrast high across the full solar disc
- Pressure tuning adjusts the H-alpha passband with fine control
- 400mm focal length balances magnification with whole-disc visibility
- Crayford focuser provides smooth, precise focus at high magnification
- Supplied zoom eyepiece covers from wide to detailed solar views
- Rotatable 90° diagonal supports comfortable viewing positions
- Integrated safe solar finder aids accurate alignment with the Sun
- Universal smartphone adaptor records observations through the eyepiece
What's in the box?
- 1 x Acuter Elite Phoenix 40 H-alpha Solar Telescope
- 1 x Solar and Star Diagonals
- 1 x Red Dot Finder
- 1 x Smartphone Adaptor
- 1 x Aluminium Carry Case
FAQs:
Is the Acuter Elite Phoenix 40 safe for solar viewing?
Yes. The Phoenix 40 is a purpose-built solar telescope that meets ISO 12312-2:2015 transmission requirements for direct solar observation. The front-mounted etalon and internal blocking filter work together to reduce solar energy to safe levels when used exactly as instructed. The telescope should not be used for night-time astronomy or with additional optics not specified by the manufacturer.
What solar detail can I realistically expect to see?
Under good seeing conditions, the Phoenix 40 shows bright limb prominences, filaments crossing the solar disc, active regions around sunspots, and fine surface texture such as spicules and granulation. The narrow H-alpha bandwidth helps maintain high contrast, making changes in solar activity easy to follow during a session.
How does pressure tuning affect viewing?
Pressure tuning allows you to shift the H-alpha passband very precisely. In practice, this lets you optimise contrast for either surface detail or prominences by making minor adjustments while viewing. It is a simple, hands-on process and avoids the uneven illumination sometimes seen with tilt-based systems.
Can I take photos with this telescope?
Yes. The Phoenix 40 includes a universal smartphone adaptor, which fits over the eyepiece for afocal photography. The adaptor works well for recording prominences and larger surface features. The telescope is also compatible with 1.25-inch CCD cameras that require 55mm or less backfocus.
What mount works best with the Phoenix 40?
The optical tube is light enough for small alt-azimuth or tracking mounts. A solar tracking mount, such as the Sky-Watcher SolarQuest, makes longer observing sessions more comfortable by keeping the Sun centred without constant adjustment.
Back to topProduct Specification
| Diagonal | 90° (1.25") Diagonal (Rotatable) |
| Diameter [mm] | 40.0 |
| Eyepiece 1 | 5-16mm Zoom (1.25") |
| Focal Length [mm] | 400 |
| Highest Practical Magnification [x] | 80 |
| Included Accessories | Solar and Star Diagonals, Red Dot Finder, Smartphone Adaptor, Aluminium Carry Case |
| Magnification With Eyepieces Supplied [x] | x25-x80 |
{{item.DisplayName}} for the Acuter Elite Phoenix 40 H-alpha Solar Telescope
{{accessory.DisplayName}}
Available used from {{accessory.AccessoryUsed.UsedStartingPrice}}
Your flexible credit options available
Interest Bearing
with a choice of repayment plans over 24 or 36 months 13.9% APR (representative)Buy now pay later
36 month loan with a six month deferral period, 18.9% APR (representative)Interest Bearing Finance
This option comprises term loan with a choice of repayment plans over:
- 24 months
- 36 months
The balance of the finance agreement is payable directly to Novuna Consumer Finance in equal monthly instalments by monthly direct debit. The direct debit payments will commence at the end of the first month following receipt of your goods. The interest rate charged is 13.9% APR (representative). Late payment and early repayment penalties apply; full details of these will be provided in the loan agreement pack.
For customers based in the Channel Island, please call us to apply for finance
| 24 Months | 36 Months | |
|---|---|---|
| Cash price | £999.00 | £999.00 |
| Deposit | £0.00 | £0.00 |
| Loan Amount | £999.00 | £999.00 |
| Monthly Instalment | 23 x £47.53 | 35 x £33.70 |
| Final Instalment | £47.53 | £33.70 |
| Total Amount Repayable | £1,140.72 | £1,213.20 |
| Representative | 13.9% APR | 13.9% APR |
Buy now pay later
The Buy Now Pay Later option comprises a 36 month loan following a six month deferral period.
During the six-month deferral period, it is possible to pay off the loan, either by way of a lump sum or in smaller amounts. If the loan is partially repaid within six months, the remaining interest will be adjusted to reflect the new balance. If the loan is fully repaid within the six-month deferral period, then no interest is payable, however, a £29 early settlement fee is payable in respect of repayments within these six months.
Following the six-month deferral period, Novuna Personal Finance will initiate a monthly direct debit payment for the remaining duration of the loan. Interest will be charged at a rate of 18.9% APR (representative) on outstanding balances (backdated to the first date of the loan). Novuna Personal Finance will send a reminder letter approximately one month before the six-month deferral period is due to elapse.
For customers based in the Channel Island, please call us to apply for finance
| Balance settled in full within the six month deferral period | Balance NOT settled in full within the six month deferral period | |
|---|---|---|
| Cash price | £300 | £300 |
| Deposit | £0 | £0 |
| Loan Amount | £300 | £300 |
| Settlement fee | £29 | £0 |
| Settlement payment | £329 | - |
| Monthly Instalment | - | 36 x £11.57 |
| Total Amount Repayable | £329 | £416.52 |
| Representative | 18.9% APR | 18.9% APR |