SkyTonight

Know what to
see each night.

Naked-eye astronomy, tailored to your sky.

ARRIVING SOON - iOS

Go now. The sky is open and conditions are good — step outside.
Soon. Worth waiting for — your window opens later tonight.
Maybe. Possible, but conditions are mixed — your call.
Not tonight. Clouds, glare, or daylight are in the way — rest easy, check back tomorrow.
Planets The five you can find without a telescope.
The moon Phase, glow, and how much it washes out everything else.
Bright stars The dozen or so that cut through any city's glow.
Your sky Cloud cover, light pollution, moonlight, how dark it actually gets where you stand.

It checks your sky's cloud cover, the Moon's phase and glow, and the light pollution at your exact location — then reduces all of it to one plain verdict: Go now, Soon, Maybe, or Not tonight. No raw numbers, no charts to interpret — just whether tonight is one of the nights worth looking up for.

How do I know if tonight is good for stargazing?

Open SkyTonight — it checks your sky's cloud cover, moonlight, and light pollution and gives you one plain verdict instead of raw numbers you'd have to interpret yourself.

Can I see anything from a city, or do I need to drive somewhere dark?

Often yes. SkyTonight accounts for the light pollution at your exact location and tells you what's realistically visible from where you're standing — the Moon and the brightest planets and stars cut through most urban skies.

Does SkyTonight require a telescope?

No. It's built entirely around naked-eye astronomy — the Moon, the five planets visible without equipment, and the dozen or so brightest stars.

What does SkyTonight actually look at to make its call?

Cloud cover and weather, the Moon's phase and how much it washes out the sky, and the light pollution at your exact location — reduced to one of four verdicts: Go now, Soon, Maybe, or Not tonight.