Posted in Astronomical picture of the day

Vincent was right after all…

I guess Vincent van Gogh had the right idea, and that back in 1889…

Just compare these two pictures:

Source: Astronomical picture of the day (APOD), Feb 27, 2019

Source: Wikimedia, see here for more details abut this work of art.

Awesome, eh?

Posted in Games

Elite: Dangerous

I’ve done my first little piece about one of my favorite games – Elite: Dangerous.

Posted in Equipment, Eyepieces

Celestron X-Cel 25mm – first impression

I got a new eyepiece last week, a Celestron X-Cel LX in 25mm.

First impression: NICE. You can definitely tell that this is going to be much better than the 25mm eyepiece that comes with the NexStar.

Now I’m waiting for a clear night to actually try it out. I’ll report what it’s like later.

Picture: on the left the X-Cel, on the right for comparison the 25mm eyepiece that ships with the Celestron NexStar.


  • 6 element wide field
  • 25mm focal length
  • 60° field of view
  • adjustable eye guard
  • 1.25″ barrel threaded for filters
  • lenses with blackened edges for improved contrast

Note: all X-Cel LX eyepieces are parfocal, which means that you don’t have to re-focus the telescope when changing eyepieces.

If this is as good as it promises to be I’ll get me the 9mm as well, and bin the two cheapos that came with the NexStar. I mean, can’t really sell those to anyone with a clean conscience, after all.

Finally, here are two simulations that I’ve done with stellarium. Both show a view of h persei through the NexStar 127.

First: using the included 25mm eyepiece that ships with the NexStar:

Second, the same view using the 25mm X-Cel:

Notice the much bigger field of view. Using the X-Cel it should actually be possible to get both parts of the double cluster into view at the same time.

Posted in About

The rest of what’s going to happen on this blog will be in english.

Family, ya’know?

Posted in About

Was soll das hier? Games and Astronomy?

Das ganze ist eigentlich ganz simpel, wir kennen doch den Fluch der Astronomen… Wenn man neues Equipment kauft, löst man damit eine Schlechtwetterperiode aus, deren Länge direkt proportional dazu ist wie aufregend das neue Equipment ist.

Ein Blasepinsel zum Optiken reinigen ist für eine kleine Wolke gut, aber so ein 20″ Truss Dobson… aua. Die Regenzeit hat begonnen.

Was treibt man dann wenn man keinen Zugriff auf remote-steuerbare Observatorien hat? Die Kumpels aus dem Saarland hätten damals dann gesagt: COUNTER STRIKE!!!111einself

Ich bin da inzwischen mehr an Spielen interessiert die eine wie auch immer geartete Verbindung zur Astronomie (oder Raumfahrt) haben – und um die Spiele wird es hier auf dem Blog eben auch gehen. Immer dann wenn’s regnet oder schneit.