Observing Conditions – Night of 2026-08-29 / 2026-08-30

77 /100 Very good

Very good conditions tonight – a rewarding evening.

Best Observing Window 21:57 to 06:27 (Canary Islands time / 22:57 – 07:27 CET)

California Nebula NGC 1499

Perseus

Spanning over two degrees, the California Nebula's shape recalls the US state. A wonderfully wide target for the S30.

Moon: 96 % illuminated, rises 21:22, sets 09:52 (local time).

Calima data currently unavailable.

Show technical details (weather forecast)

cloud	37.7 / 40	Ø gewichtete Bewölkung: 6%
moon	10.4 / 20	Beleuchtung 96%, 100% der Nacht über Horizont, Abstand 68°
transparency	3.7 / 15	Calima: nicht verfügbar (kein API-Key). Feuchte-Proxy: 79%
darkness	10 / 10	Astronomische Dunkelheit: 509 Minuten
object_alt	10.0 / 10	Max. Höhe 72°, 240 min über Mindesthöhe
wind	5 / 5	Max. Böen: 0 km/h

Zeit	Low	Mid	High	Total
22:00	6%	0%	0%	6%
23:00	8%	0%	0%	8%
00:00	7%	0%	0%	7%
01:00	13%	0%	0%	13%
02:00	12%	0%	0%	12%
03:00	9%	0%	0%	9%
04:00	14%	0%	0%	14%
05:00	18%	0%	0%	18%
06:00	18%	0%	0%	18%

Calima data currently unavailable.

Cave Nebula Sh2-155

A diffuse emission nebula with a striking dark cave structure. Impressive results at moderate exposure times.

Different type or sky region from the primary target.

Dew point margin: 3.6 °C above dew point – condensation unlikely.
Wind: 31 km/h, gusts up to 0 km/h – operations unrestricted.
Atmospheric Seeing: Very good — Estimated from jet-stream winds (300 hPa), taken from the main site. For the SeeStar S30 at ~4"/pixel, atmospheric seeing has virtually no effect on image quality – it only becomes relevant above ~50 mm aperture.

Single model: MET Norway (HRES/ECMWF-based)

Weather: MET Norway (api.met.no) · Astronomy: Skyfield / NASA JPL DE421

Calculated 29.08.2026 09:24 (Canary Islands time)

All data are forecasts and may differ from actual conditions.

Tonight's Observing Conditions