Astronomy Logbook & Star Diary

The log you fill in after the session: target, magnification, seeing 1–5, notes. Messier 110 checklist and red night mode included.

Your nights at the eyepiece deserve better than a note on the back of a star chart. StarSpot is an astronomy logbook built for one moment: you just came in from a session, and you want it on the record before the details fade.

Sky maps show you what is up tonight. StarSpot remembers what YOU actually saw — which night, which scope, which eyepiece, how steady the air was, and what you wrote while it was still fresh. Sessions are grouped the way astronomers count them: an observation at 1 a.m. belongs to the evening it started, not the next calendar day.

WHAT YOU GET

• A logbook that fills itself in: pick your saved scope and eyepiece and the magnification is calculated for you • Every entry carries the seeing, rated 1–5 from Poor to Excellent, so "was Saturn this sharp last autumn?" has an answer • The Messier 110 as a living checklist — tick off M42, see at a glance which of Charles Messier's objects you still owe yourself • Charts that show what you observe most, your streak of consecutive clear nights, and your best seeing so far • Red night mode across the whole app, so checking your log at the eyepiece doesn't cost you your dark adaptation • One-tap CSV export — your complete logbook opens in any spreadsheet, forever yours

PERFECT FOR

• Backyard observers who want each session to count toward something • Messier hunters working through the catalogue object by object • Owners of more than one scope or eyepiece who are tired of doing focal-length math in the dark • Anyone returning to the hobby who wishes they had records from the first time around

WHY NOT JUST A PLANETARIUM APP?

Planetariums answer "what's up there?" — and forget you the moment you close them. Ten years of observing leaves nothing behind. StarSpot is the other half of the hobby: the permanent record. Use your favourite sky map to find the target; use StarSpot so the night is never lost.

PRIVATE BY DEFAULT

Your logbook lives on your iPhone. No account, no server, no analytics — the app makes no network requests of its own. Export your data whenever you like; it never leaves the device unless you send it somewhere yourself.

FULL ACCESS

StarSpot Pro unlocks the complete app: the observing logbook and editor, charts, streaks and best nights, the Messier 110 checklist, and equipment profiles with automatic magnification. Choose a weekly or yearly auto-renewing subscription, or a lifetime plan with a single one-time payment. Prices are shown in the app before you commit, and you can restore a previous purchase at any time.

Log tonight's session before it fades — your future self at the eyepiece will thank you.

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