Questions tagged [photography]

Questions about photography of celestial objects by amateur or professional astronomers. Questions about photography of other objects are off-topic but might be asked on our sister site Photography Stack Exchange.

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39 views

Mystery CCD camera

What I know: this is a Meade-brand CCD camera. I believe it to be relatively old (2004?). It does not have a model number, and the only pictures I can find on the internet call it a "USB PC-...
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1answer
800 views

Why was the Vera C. Rubin Observatory LSST Camera tested with a broccoli and a pinhole?

The SLAC National Accelerator Laboratory video Vera C. Rubin Observatory LSST Camera (caution! annoyingly loud music, lower volume before playing) shows a Romanesco broccoli (which I'd assumed was a ...
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Point spread function image deconvolution

I would like to deconvolve an image of Saturn. I took an image of Saturn: Stack of 50 frames, the angular resolution of the original frames is 1.6''/pixel and the frames are scaled x4 before stacking....
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Why does the background noise in this image of 2020 QG look like corduroy?

The news item Small asteroid becomes closest ever seen passing Earth: NASA contains a "handout image" with the caption: This NASA/JPL/ZTF/Caltech Optical Observatories handout image ...
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1answer
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Canon camera recommendation

I am an amateur astronomer looking to upgrade from a simple point and shoot camera looking through a Newtonian telescope to a more sophisticated set-up. I lecture at a local college and I am lucky ...
2
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1answer
61 views

Searching dataset for Constellation detection

I need to develop an Machine Learning (ML) model for predicting constellation seen in a picture taken from a mobile. This I need to develop from scratch. Firstly, I need help finding a database which ...
7
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1answer
219 views

Lucky imaging with Celestron 14 - is this result reasonable?

I attempted to do some lucky imaging of Jupiter using a permanent installation (Celestron $14$" SCT + Paramount ME II) and Nikon D5600 attached directly to a Baader Hyperion 8-24mm eyepiece (...
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1answer
66 views

360 degree image of the whole sky

I look for an image that I know exists. It is an image showing the whole sky, showing all stars and galaxies bright enough to be visible at the resolution, projected to the same shape that is commonly ...
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1answer
83 views

Trying to use Canon 60D DSLR with Skywatcher 130P. Can't focus image

I have a Skywatcher Heritage 130P FlexTube Dobsonian Telescope. It works well, I can see lovely stars, planets, moons of Jupiter etc. It came with two eye pieces (1.25 inch): 10 mm and 25 mm. I also ...
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1answer
85 views

50mm f1.8 for Astrophotography

I am considering using a 50mm f1.8 maybe even try aN 85mm f1.8 on my Astro FI 102MM Telescope have you any thoughts or suggestions? I have never taken images via a telescope so this is a whole new ...
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1answer
90 views

How to calculate local position, knowing the RA and Dec of the center of an image, RPY of the camera, and precise time?

Given a picture of stars - assume it is possible to identify the stars and their Right Ascension (RA) and Declination (Dec). By choosing one near the center of the image (or interpolating RA/Dec to ...
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2answers
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Jupiter with a mobile phone and Celestron Astro FI 102mm Maksutov

My name is John, I am new here and now that I am retired I decided to get myself my first ever telescope, why I never got one before I have no idea...probably too busy. So I thought I would try and ...
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2answers
373 views

Why in my area does NEOWISE appear so dim and small?

So, I was always amazed by images of NEOWISE around the Internet like this: Or this: Yet, all my efforts to see it or photograph it in its full glory were fruitless... 22.07.2020 22:01 Here you can ...
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1answer
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How do we know that the discovered M87 black hole isn't just a star surrounded by a dust disk?

To an untrained eye like mine, pictures of stars surrounded by dust discs look very much similar to the picture of the M87 black hole. Here are some pictures of these dust discs: And here is a ...
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1answer
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Can a laser pointer ruin a long exposure photo?

I am a hobby astronomer and usually out with people that aren't familiar with the night sky. In order to help them find constellations or show them stuff in the sky, I was thinking of buying a laser ...
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3answers
173 views

I'd like to photograph NEOWISE from Los Angeles, what is the optimal time?

I live in Los Angeles and have a camera adapter for my telescope -- nothing fancy just an Astromaster 114. What is the optimal time, in terms of dark sky and bright comet, to take a photo of Comet ...
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529 views

Would Adaptive Optics be Useful in Radio Astronomy?

This Question and Answer got me thinking. If atmospheric seeing at visible wavelengths is the result of refractive index inhomogeneity, would it also be a similar problem for mm to cm wavelengths? ...
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2answers
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60 second exposure photo with phone at eyepiece with an app produced giant ball of light, what next?

Last night I tried my first long exposure photo of M44 (the beehive cluster). While my exposure time was 60 seconds, my photos came out with a giant ball of light in the center of the photo. Could ...
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2answers
338 views

What does “additive fringing from the (multiplicative) twilights” mean?

The question How can I make the fringing pattern visible in my flat (twilight) images for filter i? includes: I have a bunch of twilight flats that have been preprocessed (dark, bias, overscan etc.)...
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Longest time after an image was taken when a new solar system body was discovered from it?

This answer to If there's nothing special about Pluto, why was it discovered so early? says: In fact, often objects are discovered to be in pictures from long ago, such as Orcus, discovered in 2004,...
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3answers
107 views

Frames per second capabilities cameras currently installed in Modern Telescopes?

What are the present real-time capabilities of various modern telescopes as video cameras? How do these compare with the capabilities various of space telescopes? For example, if it was known that ...
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1answer
1k views

What's the rationale behind the false colours in solar observation photographs?

Images from SOHO, SDO and other sun observatories are often coloured differently for different wavelengths or temperatures: http://www.nasa.gov/mission_pages/sunearth/science/Sun-Wavelength-Chart....
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1answer
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Which telescope would be better with a DSLR?

I'm interested in astrophotography and since I haven't left my home in six weeks, my interest in photographing the skies has been growing. I'm on a tight budget and I've found these two options: A ...
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2answers
51 views

Taking a picture of Starlink satellites

I really want to take pictures of Starlink satellites, but I am fairly new to this kind of photography so I have a few questions. What is the best lense to use and do I need any additional filters? ...
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Taking a picture of Starlink satellites [duplicate]

I really want to take pictures of Starlink satellites, but I am fairly new to this kind of photography so I have a few questions. I am using a Nikon d3400 and a tripod obviously. What is the best ...
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Where can I download light pollution data?

I'm creating a website with prediction of how good will be a night for astrophotography. I take into account the Moon, clouds, but of course I need light pollution data. Where can I download a light ...
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2answers
1k views

Why does the closest approach of star S2 to Sgr A* not appear to be near the focus of its elliptical orbit?

Phys.org's Very Large Telescope sees star dance around supermassive black hole, proves Einstein right links to several ESO videos, including The star S2 makes a close approach to the black hole at the ...
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What was that single file line formation of flashing plane lights flying in the sky at night? [duplicate]

It was here on the west coast at 5 am pacific standard time when I went outside for a smoke when out of the corner of my eye what looks like a plane with flashing lights going across the sky when all ...
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2answers
406 views

What does this “web on the surface of the Sun” image reflect? What does 789 nm show us?

What is this web on the surface of the Sun? has got me thinking. This is probably not a normal color photo. The cooler areas are really dark! update: Comments point out The NSO press release says ...
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4answers
359 views

Why are there no photos of exoplanets?

There are a lot of photos of diffrent astronomial objects such as galaxies, nebulae and stars of which some are very far away. However there are no real photos of exoplanets (by “real photos” I mean ...
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1answer
79 views

Python controllable amateur astrophotography cameras?

I would like to read further about any successes that amateur astrophotographers (or professionals) have had with USB CCD cameras that are controlled by Python scripts. I'd like to script the setting ...
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57 views

Python interface for DMK 23U274 USB camera for astrophotography

I have access to a monochrome USB camera (DMK 23U274, The Imaging Source) and I'd like to record focal plane images from a small telescope with a python script that would control it by setting ...
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1answer
88 views

Information about known objects in the Universe

I want to retrieve coordinates, photos, and information (size, atmosphere composition, distance from Earth, etc.) about every known object in the universe. Ideally, the information is available via an ...
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1answer
61 views

Moon Images from Earth

Is there a resource online of images of the moon (taken from the Earth) suitable for processing with a computer: I.e. taken with the same camera, optics, location, etc, over months/years? Purpose: ...
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2answers
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Weird Blob near Polaris?

I need help identifying a blob. Last night I took a picture of Polaris, and there is a weird blob in it that I can't identify. Star charts and other pictures on the 'net do not show this blob. I ...
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Why do all the stars near this comet show up as four separate dots in a row?

After seeing this tweet about our not-so-new but at least newly-discovered "mini-moon" I scrolled down and saw the tweeted image below. Since the object is the known short-period comet 114P/Wiseman–...
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1answer
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Will the Magdalena Ridge Optical Interferometer be able to image extended objects like the surface of the Moon?

Inspired by several questions: When will a moon landing site be visible via telescope? Could the E.H.T. produce an image of the human artifacts on the moon? Picture of equipment left on the Moon? ...
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2answers
3k views

Why don't they make an image of the black hole in the M33 galaxy?

Since we see the Triangulum galaxy M33 from a quite vertical position (contrary to our Milky Way and a bit the Andromeda galaxy) it should be easy to image the black hole in the center of it, shouldn'...
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2answers
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What is the horizontal distance needed to observe an object just as badly as if it where in space at the zenith?

When I see an object in space (let's say the ISS) above my head, my line of sight traverses ~$100\; km$ of atmosphere. The vast majority of the extinction, absorption and turbulence happens closer to ...
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1answer
65 views

How can I use my current camera whose zoom lens can't be removed behind an f/6 refractor for as an astrophotography?

I am looking at an Astrotech AT60ED (60 mm f/6 with a field flattener) and a Digi-Kit telescope adapter to do astrophotography, mainly deep-sky and I'm wondering if I can use my current Panasonic DMC-...
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1answer
139 views

What is the LSST's plan to address frequent satellite trails in data?

update: From Nature.com News article: SpaceX launch highlights threat to astronomy from ‘megaconstellations’: But an upcoming, cutting-edge telescope could be in bigger trouble. The US Large Synoptic ...
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1answer
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Do large telescopes, especially plans for the LSST, avoid saturation artifacts from the brightest stars and planets? If so, how?

This interesting answer to What is the LSST's plan to address frequent satellite trails in data? quotes: From the LSST webpage: The first group of Starlink satellites are sufficiently bright during ...
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1answer
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Astronomical animations of deep space objects

Is there any real animations from NASA or others (not simulation or Artist's impression) like this https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004442/frames/730x730_1x1_30p/ or this https://...
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2answers
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Did Hubble see a pair of UFOs? (Identify this artifact)

The image below is this one, found in this group of Hubble space telescope images of the interstellar comet 2I/Borisov (C/2019 Q4). Can anyone recognize this pair of artifacts in the upper right ...
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1answer
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Questions about Hubble's brand new view of an interstellar comet (video)

This GIF is made (via giphy.com) from the new NASA Goddard video Hubble's New Image of Interstellar Object and if I understand correctly many (if not all) of these frames are from https://archive....
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4answers
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Which are stars and which are noise in this comet photo?

The Forbes news article NASA's Hubble Telescope Snaps Best Images Yet Of Our First Interstellar Comet shows the image below (which I have since annotated) of comet 2I/Borisov (C/2019 Q4) and links to ...
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1answer
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How (the heck) does Astrometry.net work?

What magic is this? This answer to my question Astronomy detective question: what part of the sky are these photos of? What are a few of the stars? nails it, and the output (linked there) contains ...
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Are these stars in MASCOT image of Ryugu?

Are these stars in this MASCOT image of Ryugu? Larger image: https://www.sciencealert.com/images/2019-08/processed/RocksOfRyuguStranglyFamiliar_1024.jpg They seem too bright to be stars (if the ...
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1answer
107 views

Astronomy detective question: what part of the sky are these photos of? What are a few of the stars?

The 9to5Google article Exclusive: Official Pixel 4 camera samples show astrophotography, selfies, more [Gallery] shows some surprisingly nice (at least to me) photos of the Milky Way. I've asked ...
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1answer
217 views

What lens should I use for my Raspberry Pi?

I am building myself a camera that attaches to the back of my Celestron NexStar 4 SE telescope and I am not sure what type of lens to choose to replace the stock lens on the Raspberry Pi camera. I ...