Raspberry Pi astrophotography

Tonight marks the appearance of the brightest supermoon to grace the sky since 1948, appearing 30% brighter and 14% bigger than the usual glowing orb. The moon will not be this close again until November 2034.

Given this, and assuming the sky remains clear enough tonight to catch a glimpse, here’s one of several Raspberry Pi-powered astrophotography projects to get your creative senses tingling.

Having already created a similar project with a Nokia Lumia, TJ “Lifetime tinkerer” Emsley decided to try attaching a Raspberry Pi and Camera Module to a newly adopted Tasco 45X refractor telescope. They added a $10 USB shield, wireless NIC, and the usual setup components, and the project was underway.

TJ EMSLEY Moon Photography

TJ designed and 3D-printed a mount and bracket; the files are available on Thingiverse for those interested in building their own. The two-part design allows for use with various telescopes, thanks to an adjustable eyepiece adapter.

A Pi Zero fits onto the bracket, the Pi camera snug to the eyepiece, and the build is ready.

TJ EMSLEY Moon Photography

The Pi runs code written by TJ, allowing for image preview and exposure adjustments. You can choose between video and still images, and you can trigger the camera via a keyboard; this way, you don’t unsettle the camera to capture an image by having to touch the adapter in any way.

TJ will eventually be uploading the project to GitHub, but a short search will help you to build your own camera code (start here), so why not share your astrophotography with us in the comments below?

Enjoy the supermoon!

33 comments

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I have a challenge for all the internet extroverts (who make me laugh and make life funnier).

Go out dressed in a dog suit and howl at the moon from crazy locations. :-D

Sorry, i’ll get my coat………

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This is very cool :) shame i don’t have my old telescope anymore or maybe its in my parents loft…..

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Note that it’s a “Tasco” refractor, not a “Tesco” one like the article states!

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Proofing error – thanks for the spot!

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Note that it ain’t a refractor at all, but rather a small newton reflector.

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“14% bigger” – well, it’s still only the difference between a 5p coin and a 1p coin, held at arm’s length.

So, don’t worry about not being able to fet things going for tonight – and don’t hang about waiting until 2034. If you get it built, then get out and try it *any* time you have a clear view of the moon.

In fact, “30%” brighter” also just means 30% more difficult to image in the first place – simply because the moon is so bright in the first place.

You will actually get a far more satisfying image if you go out imaging *between* full moons. The details you will see from the edges of craters, and the shadows from Lunar mountain ranges are simply stunning.

Enjoy!

Niall Saunders
Clinterty Observatories
Aberdeen

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EXACTLY !

I like the response of Neil de Grasse Tyson (Hayden Planetarium in New York) :
[quote]
“I don’t know who first called it a supermoon,” he told StarTalk radio.

“I don’t know, but if you have a 16-inch pizza, would you call that a super pizza compared with a 15-inch pizza?”
[/quote]

It’s nothing more than hype … and probably clouded-out hype to boot ! I’m all for encouraging astronomy, but please … do it for something you’d notice !

As for a “Tesco” refractor – you can probably get these low-end ‘scopes in there ! I know you could in Jessops …

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Be fair – it would have to be a 17″ pizza – and I spend my time in Tesco’s looking for the “Buy 3, get one free” offers.

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“Pi 3, dot one four” offers ;-)

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Hype it may be, but only a sort of Tesco Value hype.
I’m quite happy to know that we had a rare astrological event happening with the orbit being so close, and to witness it. Just like the transit events, and the minimal eclipses. If you are interested in astronomy then this is interesting. I wouldn’t be supercilious and dismissive.

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Well said.

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Are you sure you mean a “rare astrological event”?

The odds against that being correct are astronomically large.

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It’s the biggest by a small margin but NOT the brightest, there have been many brighter moons over the past years. A friend wrote this explanation: https://docs.google.com/document/d/1rcs3Qfn7cSWqfNH4vNoo4Oz-KJRvH1ojo4vcT_P8_s8/edit?usp=sharing

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I like the final sentence Ed, where ther term ‘super-moon’ appears to have been coined ‘by an astrologre’

(and I’m leaving that typo in !!)

Nuff said!

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I make hummus from scratch. I bark at the moon and I would lasso the moon for her (best bang for buck, right?)…

Just say the word and I’ll throw a lasso around it and pull it down. Hey. That’s a pretty good idea. I’ll give you the moon, Mary. — It’s a Wonderful Life

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“assuming the sky remains clear enough”

HAHAHAHAHAHAHAHAHAHAHA

100% cloud cover here all evening.

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I believe that the scope is actually a Tasco 4.5″ reflector.
The main optic (a mirror) is 4.5 inches in diameter and is known as a Newtonian telescope. Many thanks to a well known Mr. Isaac Newton who is credited for inventing it.

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Has anyone built a Pi-based telescope mount?

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I’m sure I’ve seen something along those lines that tracked stars using Stellarium – can’t find the project I was thinking about at the moment, though. I’ll have a more thorough search later on!

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I have a python script on a pi to do autoguiding of a mount, including an eq6…

https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=45246&start=308

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As long as you do this project before the next solar eclipse

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I would like to take a very long exposure but the camera module max time exposure are 6 seconds. Is there a way to extend this time?

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The pi V2 camera can do 10 seconds.

see section 3.7 here

http://picamera.readthedocs.io/en/release-1.11/fov.html

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Has anyone built a Pi-based telescope mount?

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Be fair – it would have to be a 17″ pizza – and I spend my time in Tesco’s looking for the “Buy 3, get one free” offers.

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This is very cool :) shame i don’t have my old telescope anymore or maybe its in my parents loft…..

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The image below was taken with a pi camera on a 4″ Newtonian scope.

The images were stacked and cleaned up using Registax

https://flic.kr/p/qGRF2b

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Quality isn’t that good… I can do better pictures with my Nexus 5 and cheap lens from China.

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Are the files up on GitHub yet?

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Here’s a different approach to a self contained astrophotography mounting for the Raspberry Pi and a better examples of the astro image quality that can be obtained with the Pi:
The camera –
http://astronomy.robpettengill.org/astroRPi.html
A 72 panel moon mosaic –
http://astronomy.robpettengill.org/RaspberryPiMoon20131020_byGallery.html
Jupiter with the Great Red Spot and moons Io and Europa
http://astronomy.robpettengill.org/JupiterGRSIoEuropaRPi_byGallery.html

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getting ready to set this up, but will be using a Pi3 and noIR camera. I want to live stream from my 12inch LX200. hopefully we can see some shots of the great orion nebula. We will at least be able to see the planets and the moon. Should be fun trying.

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