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.

Filter by
Sorted by
Tagged with
1
vote
3answers
80 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 ...
5
votes
2answers
90 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 (...
9
votes
2answers
517 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? ...
0
votes
2answers
94 views

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 ...
7
votes
2answers
326 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.)...
1
vote
0answers
46 views

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,...
1
vote
3answers
102 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 ...
4
votes
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....
2
votes
1answer
74 views

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 ...
2
votes
2answers
39 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? ...
1
vote
0answers
30 views

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 ...
2
votes
0answers
37 views

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 ...
14
votes
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 ...
0
votes
0answers
36 views

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 ...
8
votes
2answers
399 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 ...
1
vote
4answers
339 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 ...
1
vote
1answer
62 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 ...
1
vote
0answers
39 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 ...
4
votes
1answer
87 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 ...
4
votes
1answer
56 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: ...
1
vote
0answers
42 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 ...
6
votes
2answers
487 views

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 ...
2
votes
0answers
45 views

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–...
2
votes
1answer
101 views

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? ...
17
votes
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'...
1
vote
2answers
44 views

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 ...
1
vote
1answer
55 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-...
4
votes
1answer
130 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 ...
2
votes
1answer
76 views

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 ...
0
votes
1answer
68 views

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://...
1
vote
2answers
143 views

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 ...
2
votes
1answer
43 views

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....
16
votes
4answers
3k views

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 ...
5
votes
1answer
313 views

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 ...
1
vote
0answers
60 views

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 ...
4
votes
1answer
102 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 ...
3
votes
1answer
215 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 ...
8
votes
1answer
827 views

How can I observe Sgr A* with itelescope.net

I've been experimenting with itelescope.net and tried to observe Sgr A*. I was wondering if there are any suggestions how I can best observe the surrounding stars.
21
votes
6answers
9k views

Does this smartphone photo show Mars just below the Sun?

I live in Essex, England (51.7678° N, 0.0878° E). On 25 July 2019 (hottest day ever in the UK, btw), 06:43 BST, I took this smartphone photo of the Sun. Is that white dot just below and left of the ...
2
votes
0answers
62 views

Is there any free stacking program that stack images which are not aligned?

I liked to photo deep-sky-objects and planets with my camera Canon sx130. But I have never stacked images because they were too much apart. I was looking for some free astronomy stacking program for ...
2
votes
1answer
48 views

Telescope focal point and inversion

When looking at a diagram of the optical path through a newtonian reflector, the lines always cross before the eyepiece. I understand that the eyepiece is used to focus this diverging light cone so ...
1
vote
2answers
96 views

Sagittarius star cloud?

I was using SkySafari with my phone, but the compass didn't quite work. So as I knew where the cardinal points were, I think I have shot the Sagittarius star cloud, at least a part of it. Can you ...
7
votes
3answers
2k views

Attach a visible light telescope to the outside of the ISS

Visible light imaging of the heavens is limited on Earth primarily due to the atmosphere. I know the ISS is moving at 17000mph, but given the delays to the James Webb telescope, is there any merit in ...
9
votes
1answer
2k views

How far into intergalactic space would you have to go to see the Milky Way?

If in the distant future a ship were somehow able to move beyond the galaxy and into intergalactic space, how far would it have to go before we could look out a window and see the Milky Way in its ...
2
votes
1answer
154 views

High quality, detailed images of planets on web

I have been looking for images of the planets and have found pretty decent ones of Earth and Venus from NASA. That detail is opposed to this one of Uranus: And these of Mars, (and this and this) I ...
1
vote
1answer
79 views

What are the most popular galaxies for which we have images? [closed]

The only galaxies I can think of (not being an astronomer) are Andromeda and Milky Way. There are 51 near galaxies, but they all pretty much say "satellite of Milky way" or "satellite of Andromeda". ...
3
votes
1answer
148 views

Why does the moon 'peel' away from the horizon in this photograph?

The Himawari-8 geostationary weather satellite recently had a lunar intrusion into it's primary sensor (the Advance Himawari Imager, or AHI): Zooming in on the moon: I see a strange cupping (or '...
3
votes
1answer
137 views

How are space telescopes stabilised to a perfect standstill?

I assume that for space telescopes to get good images, they must be put in perfect standstill, as even the slightest deviation in the viewing angle is amplified by the distance of observed objects, ...
1
vote
1answer
101 views

False-color wavelength assignments in this “drop-dead gorgeous” image of NGC 2903?

C|Net's Hubble spots drop-dead gorgeous spiral galaxy tucked into Leo links to NASA's Hubble Spots Stunning Spiral Galaxy which shows the image below. The caption on the NASA page doesn't mention the ...
3
votes
1answer
228 views

What is the highest granularity focal-plane array on a dish radio telescope? Or is this the ONLY ONE?

There is a short Wikipedia article Focal Plane Arrays that enumerates some projects, but my question is more along the lines of what is (at least) nearly complete or in "first light" phase, even if ...