AstroGoBox – A Compact Control Box for Mobile Astrophotography

AstroGoBox featured image.

AstroGoBox is a compact, telescope-mounted control box designed to simplify and harden mobile astrophotography setups. It reduces cable chaos, increases USB reliability, and allows comfortable wireless control. This is especially convenient on cold nights.

The AstroGoBox is based on a Raspberry PI 4B which runs the standard Raspberry Pi OS Linux and uses the INDI protocol to control astronomical devices.

This article gives an overview about the AstroGoBox, the idea behind, its features and its tech stack.

Motivation: Improve the reliability of mobile astrophotography setups

Let me tell you a quick story. If you can find yourself in a similar situation this article is for you:

Once upon a time, there was a gnome who wanted to take pictures of the night sky.

At last—after weeks, or perhaps even months—there came a clear, almost moonless night. By a rare alignment of fate, the gnome also found the time to go outside and do some imaging. It was cold. The tripod felt like an ice cube. The gnome wired his notebook to his telescope equipment using several rather long USB cables that twisted across the ground like sleeping snakes.

Eventually, everything was connected: cameras, focuser, mount—every last device. Polar alignment was completed. The object of desire was located in the sky. The camera cooler was running, perfect focus was found, guiding was calibrated, and at last the machinery began to collect photons. The seeing was extraordinary, and the gnome was certain this session would produce glorious results.

While waiting, however, the gnome slowly began to resemble an ice cube himself. He thought longingly of a cup of hot tea in the tent. But would it be wise to leave the notebook unattended? Would the setup truly do its job? Shouldn’t the guiding be monitored? What if one of the cameras lost its connection to the computer? What if focus drifted? What if the mount limits failed and the telescope collided with the tripod in a terrible mechanical tragedy?

And so the engineer gnome decided to stay and watch. The only sounds were a distant barking dog and the gentle whirring of the mount.

About thirty minutes later, the gnome was no longer resembling an ice cube—he had become one. His fingers were stiff, and the cold began to crawl under his winter jacket. At last, he decided it was truly time for a cup of hot tea. The setup was running well, after all… so why shouldn’t it?

Inside the tent, it was cozy. The gnome enjoyed his steaming cup of tea, and for a few precious minutes, all was well. But then an uncomfortable feeling crept in. Was the setup still fine? Shouldn’t he go back and check? Just in case?

After a few minutes, he could bear it no longer. He put down his cup and went outside—just for a quick look.

When the gnome returned to the telescope, he became furious. The guiding had stopped. But why? After some investigation, he discovered that the USB connection to the guide camera had failed. Deprived of its electronic lifeline, PHD had stopped guiding in silent protest. The gnome restarted the software, hoping that only the last frame had been lost. But then he noticed something worse. The mount had lost track of the object entirely. It, too, had disconnected.

With a heavy sigh, the gnome began the alignment procedure once more. He relocated the target and tried to match the previous framing as closely as possible. By now, working at the computer had become nearly impossible—his hands were completely frozen. In the end, he lost at least one full hour of priceless imaging time to a single technical failure.

And as the mount finally resumed its slow, faithful tracking, the gnome once again asked himself the ancient and eternal question of astrophotographers everywhere:

“What in the world am I doing out here?”

And the moral of the story was this: Longer is not always better 😉

If you find yourself in the shoes of our little engineer, you are not alone. Me (and potentially a few others) had (and probably still have) this type of issues with their setup. It was one of those nights when the idea of the AstroGoBox was born.

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An article from lost-infinity.com in the “Dark Sky Travels Magazine”!

Recently Dark Sky Travels Magazine contacted me and asked if they could publish one of my blog articles in their magazine. The article describes how one can use DeepSkyStacker to stack conventional DSLR camera RGB frames. Of course I didn’t say no and in the end it just happened and I saw my article on page 42/43 in Issue 4 of the DarkSkyTravels magazine!

I am very happy about that opportunity and the chance to share my experience this way.

Thanks and clear skies!

Andromeda Galaxy (M31) – The first time from La Palma

Date2018/12/31
LocationLa Palma / Spain
ObjectAndromeda Galaxy (M31)
CameraAtik383L+
Guidingyes, QHY5-II Mono via OAG
Telescope8" GSO Newtonian
Barlow lensnone
MountEQ6Syntrek
Cooling-10°C
Luminance6x 600s, bin: 1x1
Red5x 150s, bin: 2x2
Green5x 150s, bin: 2x2
Blue5x 150s, bin: 2x2
Dark2x
Flat10x
Total exposure~1h38m

Tonight I again decided to image the Andromeda Galaxy (M31) – the first time from La Palma. The seeing tonight was very good – around 1.5~2″ which was extraordinary! Also the weather conditions as shown by La Palma HDMeteo were excellent. Back in 2013 I already imaged the Andromeda Galaxy with the same equipment but from Boeblingen.

It is interesting to see the difference here. For post-processing I used the free software DeepSkyStacker and GIMP. The full resolution images is available here.

Clear skies!

Last updated: June 16, 2022 at 11:57 am