Koppie Werf

Any night you like, computed.

9 October 2026

One step is one night, which is four minutes of sidereal drift. A whole year turns the sky once.

The lamp is on. Almost nothing is visible.

Looking north0° up

The year, night by night

Every night of 2026 at this latitude, drawn as the hours between astronomical dusk and astronomical dawn. 3,363 hours in the year, and not one night without darkness in it.

JanFebMarAprMayJunJulAugSeptOctNovDec
No night of 2026 is without astronomical darkness at this latitude. Longest: 20 June at 10.7 hours; shortest: 21 December at 7.3.

What the guides are showing this month

3 of the 12 objects on the house list are worth the trouble in month 10. Each altitude below is where the object stands at the moment this page draws, computed rather than looked up.

Out of season this month, and listed rather than hidden: Omega Centauri, The Carina Nebula, The Lagoon Nebula, The Sagittarius Cluster, The Jewel Box, The Coalsack, Antares, Rigil Kentaurus, The Sagittarius Star Cloud.

The moon is the thing that ruins it

A dark sky with a gibbous moon in it is a suburban sky. Nothing on this site pretends otherwise, and the figures below are for the night being drawn above.

There is no dead season here

At 25.0° south the sun reaches eighteen degrees below the horizon on every night of the year, so there is no month in which this property has nothing to sell. That is a consequence of the latitude and nothing else.

It is not true everywhere. The same code, given 55° north, reports 90 nights of 2026 with no astronomical darkness at all at Craiglee Bothy — and says so on that property’s own pages, because a site that will only deliver good news is a site nobody should trust with the rest of its figures.