Nikon D3000 DSLR Saturn and Jupiter help
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By Daniel Valencia
Hi Guys!
My name is Daniel and I am from Ecuador, I love astronomy and the secrets our universe holds. I love Jupiter, our big brother, so I opened this forum to talk about facts, secrets, theories, etc. About our gas giant!
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By DeepSkyBrad
I've just had a Canon EOS 250d modified by Juan, IR filter off and shim to restore focal plane. He previously did the same for a 100d which got me going in the hobby. Juan is willing and able to take on successive generations of camera. I prefer to rely on Juan's experience for this task, despite me being an optics specialist professionally. The cost of the camera and Juan's conversion service together are a bargain and I trust him with a new camera.
I like to use this type of imager over the specialist cameras because they are the result of Canon's massive R&D capability and bundle together all these functions: battery, an up to date sensor chip, the on-board software, on-board storage, built-in display, easy-fit Astronomik filter. In the case of the 250d, that very important tiltable display so you don't have to crawl around on the wet lawn to see it. The only thing they don't have is an easily-implemented thermo-electric cooling. But I've got a long way to go in astro-imaging before I care about noise that much (though I'd like to cool, and understand what can be achieved, I use stacking averaging in the meantime to go part way in that respect).
The dslr is my one imager for three rigs, the most notable being that it's lightweight enough to go on my Omegon clockwork mount.
On my heftier rig, I do have an Altair camera with a Sony back-lit chip but only use it for tracking with a wireless-controlled Stellarmate setup, having got fed up with all the cables and tablet pc with memory dangling off it.
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By MarsG76
Hello All,
This is a photo accurate representation of how I've seen the conjunction through a Skywatch 14" f4.6 Dobsonian, using the 17mm Ethos eyepiece combined with the 2X Powermate during the observation of the great conjunction of Jupiter and Saturn, and how well both of the planets fit into the eyepiece field of view.
My location on the east coast of Australia was totally overcast for the last week and this evening I had a small window of opportunity to actually have a glimpse of the rare event, which no doubt, I will not have a another chance of experiencing in my life time.
This happened about 17 hours after the actual closest point between the planets, and most likely the difference would be so small that it wouldn't be noticeable without direct comparison.
This image was composited by first taking a series of shots through the eyepiece using an iPhone, I chose the best frame of the series than superimposed the overexposed planets with images of the planets captured separately with enough transparency as to accurately show how the planet details looked in the eyepiece.
Observation time was 22 December 2020 @ 09:51 UTC.
Clear Skies,
MG
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By pete_81
Hi all, just getting straight to the point.
Just got a Rasp Pi 400 (equivalent to Pi4-4GB), and looking to get into guiding through this as it's obviously a popular (and successful) technique.
Plan is to have the RPi as mini computer at home, running it with RaspPiOS (supplied on µSD with the full kit), then use it with a SECOND micro SD card for astro - I figure having another SD to run Astroberry (as on SGL) may ignore any issues with the family using the pi for other stuff in the house, giving a stand-alone 'computer' as the OS and files would be available on different SD's.
From this point, I'd setup as follows:
Connect the RPi directly via USB to the mount (it's the newer SW-AZ-EQ6Pro with the USB-B port on the mount)
Guidescope (240mm f/4) with T7C (equivalent to ZWO Mini) again USB-B direct to RPi
Nikon DSLR (either on telescope or using camera lenses) connected to RPi via Nikon USB (using the 3 USB points on the RPi-400) to control capture and later using this for plate-solving (but that's not for just right now!)
I don't spy any flaws in the plan, it's just going to be a matter of testing and setting things up hoping to follow the guide for Astroberry as linked to SGL below...
Or is there an alternative OS? From brief reading, Astroberry includes KStars & PHD2 which is what I've got for use on the macbook (although not used in earnest as it doesn't appear to like the cold too much!)
What about guiding software - I know KStars comes with it's own, and can run PHD2 from within, with PHD2 being the industry standard (and simplest?) to use?
Control will then be sitting in the warm via OS-X, which seems to be again a common technique as I've had posts on my other questions about this!
Thoughts???
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By Planetarian
Just thinking how this setup would compare to normal astrophotography setups. Imagine a Nikon coolpix p1000 on an equatorial mount. Has anyone done that yet?
As I saw in the YouTube videos about the camera, it has absolutely no chromatic aberration, so I assume it's got apochromatic lens. It's magnification is extremely good (125x with 16MP sensor). The aperture is quite small tho compared to many different refractors available.
So what do you think about the idea: astrophotography with a Nikon?
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