my personal planetarium

Which galaxies, nebulae and star clusters are above your horizon tonight? Tonight’s Sky shows them for your location, your open patch of sky and your observing time – right in your browser.

Sky Preview

My sky for tonight: see which of my photographed objects are well placed right now and what I plan to capture next.

Exposing a Total Solar Eclipse: The Technical Configuration

The purely technical side of my learning process in preparation for the total solar eclipse.

The Journey to the Eclipse: The Equipment

How much gear do you actually need for your first total solar eclipse when you don’t yet know how to photograph one?

The Journey to the Eclipse: From Koblenz to León

A week-long father-son road trip from Koblenz to northern Spain to photograph the total solar eclipse on August 12, 2026. From the search for the right spot to three independent local contacts and a nerve-wracking final hour before totality – the first part of a blog series about planning, detours, and the moment itself.

ToupTek SkyEye 24AC – 1/2 – The purchase decision

Recently, in addition to the ToupTek62AM, I also purchased a ToupTek24AC camera.

How to Calculate the Correct ADU Target for Flats

A Step-by-Step Guide – Using the ToupTek SkyEye 62AM and SkyEye 24AC as Examples

WarpAstron WD-20P 1/3 – The purchase decision

Last week, I finally hit the “buy” button. After extensive research, I chose the Harmonic Drive mount WD-20P from WarpAstron.

StellaVita 1/2 – A Step Toward Independence

It was time for a permanent adaptation of an astrocomputer to my Vixen VC200L.
I chose the ToupTek StellaVita.

More Contrast Under Suburban Skies – My Experience with the Baader UHC-L Booster Filter

More contrast under suburban skies — my real-world experience with the Baader UHC-L Booster Filter (50.4 mm).
Three projects, challenging conditions, and an honest technical conclusion from my backyard in Koblenz.