The same primitives, read for a different purpose. An experience here is a set of variables and thresholds — not a subsystem, not a pipeline of its own — which is why the Moon can be interference for stargazing and the light source for a night landscape without either needing its own data.
Is it dark, and is the Moon out of the way?
Reads: sun altitude · moon presence · cloud · light pollution. At Oat Mountain, 14 nights from 2026-08-22.
Across every published place, on 2026-08-22
- Oat MountainAstronomical darkness: 20:08 to 03:58 · Dark and moonless: 3 h 7 min, from 00:51 · Moon: 79% illuminated
- Red Box, Angeles CrestAstronomical darkness: 20:08 to 03:58 · Dark and moonless: 3 h 7 min, from 00:51 · Moon: 79% illuminated
- Rocky PeakAstronomical darkness: 20:07 to 03:57 · Dark and moonless: 3 h 7 min, from 00:50 · Moon: 79% illuminated
Listed in the order they were approved, not ranked. Every place here is missing the same things — cloud, aerosol, light pollution — so a ranking would be sorting on what the sky is doing while ignoring what the weather is doing.
Sat 22 Augpossible
- Astronomical darkness20:08 to 03:58in favour
- Dark and moonless3 h 7 min, from 00:51in favour
- Moon79% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Sun 23 Augpossible
- Astronomical darkness20:06 to 03:59in favour
- Dark and moonless2 h 10 min, from 01:49in favour
- Moon86% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Mon 24 Augpossible
- Astronomical darkness20:05 to 04:00in favour
- Dark and moonless1 h 10 min, from 02:49mixed
- Moon92% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Tue 25 Augpossible
- Astronomical darkness20:03 to 04:01in favour
- Dark and moonless10 min, from 03:51mixed
- Moon97% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Wed 26 Augnot on this night
- Astronomical darkness20:02 to 04:02in favour
- Dark and moonlessnone — the Moon is above the horizon throughout the dark hoursagainst
- Moon99% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Thu 27 Augnot on this night
- Astronomical darkness20:00 to 04:03in favour
- Dark and moonlessnone — the Moon is above the horizon throughout the dark hoursagainst
- Moon100% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Fri 28 Augnot on this night
- Astronomical darkness19:59 to 04:03in favour
- Dark and moonlessnone — the Moon is above the horizon throughout the dark hoursagainst
- Moon99% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Sat 29 Augnot on this night
- Astronomical darkness19:57 to 04:04in favour
- Dark and moonlessnone — the Moon is above the horizon throughout the dark hoursagainst
- Moon95% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Sun 30 Augnot on this night
- Astronomical darkness19:56 to 04:05in favour
- Dark and moonlessnone — the Moon is above the horizon throughout the dark hoursagainst
- Moon89% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Mon 31 Augpossible
- Astronomical darkness19:54 to 04:06in favour
- Dark and moonless24 min, from 19:54mixed
- Moon81% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Tue 1 Septpossible
- Astronomical darkness19:53 to 04:07in favour
- Dark and moonless1 h 0 min, from 19:53mixed
- Moon72% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Wed 2 Septpossible
- Astronomical darkness19:51 to 04:08in favour
- Dark and moonless1 h 43 min, from 19:51in favour
- Moon61% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Thu 3 Septpossible
- Astronomical darkness19:49 to 04:09in favour
- Dark and moonless2 h 35 min, from 19:49in favour
- Moon50% illuminatedagainst
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Fri 4 Septpossible
- Astronomical darkness19:48 to 04:10in favour
- Dark and moonless3 h 35 min, from 19:48in favour
- Moon39% illuminatedmixed
- Cloudnot available — no forecast provider is wired into this sitenot known
- Light pollutionnot available — the VIIRS composite is a manual download and is not presentnot known
Every value here is computed in your browser from the published area — the same engine that reconstructed the archive, and no request to anything. There is no score on this page and nothing to add up: a night is described, not rated. Cloud, aerosol and light pollution are marked not known rather than omitted, because an unstated absence reads as a zero.