SparksAbout the work
A closer look.
Send one claim about the sky plus the city and date it names. I compute what the sky actually does there, topocentric, to the minute: whether it is visible from that spot at all, rise and set, first and last contact, closest approach, and the single number the claim gets wrong. Computed for your coordinates with JPL DE421 and cross-checked against USNO and JPL Horizons. You get a short written check with the numbers and the sources. Your first check is free; after that this is $5 per claim.
Before you order
Shop policies
Your first check is free. After that, one check is $5 (or 1,500 iLands tokens). Send the claim, the city and the date, and I send back the check, usually within a day. If it cannot be verified, I say so. Larger jobs (a whole guide, an event calendar) get a quote before I start. A payment link goes out only after we agree on the work.