Smart Telescope Review

Free smart telescope calculators

Every calculator below is free, runs in your browser, and needs no signup. One of them — the Smart Telescope Sky Target Checker — can also be embedded on your own site, and this page explains exactly how.

Embed the Smart Telescope Sky Target Checker

This is the calculator we get asked for most by people who publish about smart telescope and astrophotography:astronomy clubs, dark-sky groups, planetarium pages and astrophotography blogs who want to answer a recurring question without sending readers somewhere else. It is useful when a reader wants to know what a small smart telescope can really capture from a city or suburban sky. Readers enter their Bortle class and a telescope and get an instant result.

Paste this snippet into any page. It loads a lightweight, ad-free version of the tool, with no header or footer clutter — just the calculator and a credit line.

Open the Smart Telescope Sky Target Checker →

What the embed includes

  • The full calculator in a minimal frame — no header, footer, promo bar or site navigation.
  • A visible credit line linking to the tool page and to Smart Telescope Review.
  • No affiliate links, no ads, no pop-ups and no email capture.
  • Anonymous pageview analytics only — no session recording, and Do Not Track is respected.

The iframe is responsive: leave width="100%" and raise the height if your column is narrow. Nothing else needs configuring, and there is no script to keep updated — we ship fixes on our side.

Attribution and terms

The calculators are free for commercial and non-commercial use. The one condition is the credit link: keep it visible, keep it followed, and do not imply that the tool is your own. You may not resell the embed, put it behind a paywall, or strip the analytics. Everything else — placement, surrounding copy, styling of the page around it — is up to you.

Prefer to link rather than embed? That is fine too. A plain link to the tool page is always welcome, and it is the better choice if your page already loads a lot of third-party embeds.

All free smart telescope and astrophotography calculators

🔭

What Can I See From My Sky?

Pick your Bortle class and a scope: 56 popular targets rated for realistic results, framing and stacking time.

Check my sky
🖼️

Field-of-View & Framing Calculator

See any target inside every scope's frame, side by side, and whether it needs mosaic mode.

Frame a target
🎯

Smart Telescope Matcher

Budget, what you want to see, travel, sky quality and subscriptions in; ranked telescopes out.

Match my telescope
⏱️

Stacking Time Estimator

How long to stack a target for a clean image from your sky, with and without a dual-band filter.

Estimate my time

Frequently asked questions

Are the smart telescope and astrophotography calculators free to use?
Yes. Every calculator on Smart Telescope Review runs entirely in the browser, needs no account or email, and shows the full result without a paywall. Nothing you type is sent to us — the math happens on your device.
Can I embed the Smart Telescope Sky Target Checker on my own website?
Yes, at no cost. Copy the snippet above and paste it into any HTML page, CMS block or documentation page. It loads the tool in an iframe with a visible credit link back to Smart Telescope Review. You can change the width and the height attribute; keep the iframe responsive with width="100%".
Do I have to keep the credit link?
Yes. The credit link is the only condition of the free embed — please keep it visible and unchanged. Removing it, hiding it behind a click, or wrapping the embed in your own branding is not permitted. If you need a version without attribution, get in touch and we will decline politely.
Does the embedded calculator track my visitors?
The embed loads the same privacy-friendly analytics as the rest of the site: pageviews with no session recording, no cross-site profiles, and Do Not Track respected. It does not set affiliate cookies and contains no affiliate links.
How accurate are the smart telescope and astrophotography calculators?
They use the published specifications and price ranges from our comparison data, with the same assumptions stated on each tool page. Results are planning estimates: real images depend on transparency, the Moon, target altitude, dew and each app's own frame rejection. Check the maker's current spec sheet before you buy.
Can I link to a specific calculator instead of embedding it?
Yes — linking is always welcome and needs no permission. Each tool has a permanent page under /tools/ with the method and assumptions written out, so a link stays useful even if our embed program changes.