MORROW / OBSERVATION DECK 01
The airlock opens tonight.
Tomorrow can wait a moment. Look at what is already out there.
Showing London. Choose your city, or opt in to your location.
Opening the airlock
Above London
Finding the sky in your device’s clock…
Tap a light. Keyboard: Tab into the sky, then use arrow keys. 0 catalog stars above the horizon.
THE GLASS IS CLEAR
Real sky. Small instrument.
All positions and events are calculated on your device with Astronomy Engine (MIT), whose planetary calculations target about one arcminute of accuracy. This rounded-location chart is a guide for looking up, not a navigation instrument.
Stars come from the public-domain Yale Bright Star Catalogue, 5th edition (Hoffleit & Warren): the 200 brightest entries plus a few line anchors. Positions include precession and nutation, but not stellar proper motion. Distances use the original Hipparcos catalog (ESA, 1997), retaining parallaxes with reported fractional errors at most 10%. These historical estimates remain approximate. Lines are simplified guides, not constellation boundaries.
Rise and set assume a level sea horizon and standard refraction. Hills, buildings, weather and light pollution change what you actually see. Symbols are enlarged; the Moon is a north-up phase diagram, not its local tilt. Daylight stars are shown for orientation. The device clock sets “now.” Nothing here checks the weather.
Choose a city without sharing a location. “Use my location” asks your browser only after you press it; coordinates are rounded to 0.1°, held in this page’s memory, and never stored or sent by this page. Calculations need no network after the site loads.
The oldest thing on your screen is the light.
When you’re ready, go meet it.