Questions tagged [software]

Questions about computer programs that assist modeling and observing the dynamics of astronomy.

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1 vote
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94 views

JPL Ephemeris or Skyfield - how to get moon phase percentage (not illumination percentage)

I know how to use JPL's Horizons to get moon illumination percentage but I noticed that even at new moon, the illumination never goes to zero: ...
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1 vote
1 answer
79 views

orbit viewer for any date for moon

I'm aware of the NASA orbit viewer but it limits you to years > 1600 AD. Is there an orbit viewer for any date?
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2 votes
0 answers
84 views

tool to calculate moonrise/moonset and moon phase for any date for any location

I have googled for such a solution but I have not found anything substantial: I found one website but it was someone's side hobby so my confidence in it is low. Thankfully, I have discovered ...
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3 votes
2 answers
91 views

software library that calculates earth/moon/sun/planets positions based on the geocentric model

is there any software library that calculates earth/moon/sun/planets positions based on the geocentric model? if that exists, why is the heliocentric model the most popular?
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1 vote
1 answer
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Lunar Librations and Subsolar Point in Matlab

So I have been trying to write a program to generate the latitude and longitude of the lunar subsolar point in Matlab. I have the ephemeris data from aero toolbox, but I can't seem to get values that ...
2 votes
0 answers
60 views

creating asteroid light curves and analysing them

I came across the video Tutorial: Creating a Lightcurve of a Minor Planet linked below by Tycho Tracker, which itself is a software to build an asteroid light curve from raw images and analyse it to ...
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1 vote
0 answers
29 views

uvotdetect sometimes doesn't make valid .fits files for DS9 to read (Swift UVOT, Heasoft)

I have downloaded galactic center sky images from the Swift database (https://www.swift.ac.uk/swift_live/index.php#doSimpleSearch.php?catname=swiftmastr&searchpos=galactic+center&searchrad=10&...
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3 votes
0 answers
101 views

Software to create star maps with custom asterism lines?

I would like to be able to create star maps and charts, but define my own sets of “constellation” lines. I imagine I would need to provide an input file containing pairs of stars which would be ...
1 vote
0 answers
63 views

Do I need ENVI if I want to just learn IDL?

I am trying to gain experience in IDL in order to do basic image data reduction techniques like stacking and aperture photometry, so I decided to purchase an IDL license, however, the license is ...
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3 votes
4 answers
214 views

For what aspects of cosmology research can a software engineer contribute?

I'm a software engineer and I would love to learn more about cosmology by participating in this field. I'd like to change my career path closer to it and further from web programming. But I don't know ...
5 votes
1 answer
84 views

Making an application to draw the night sky of other planets

I'm making an application for drawing a night sky of planets other than Earth. Ultimately my app may be used to draw a night skies of a hypothetical planets in other solar systems. I'm doing it ...
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3 votes
1 answer
170 views

What are some astrophotography editing options and strategies for taking photos of galaxies with a telescope and a cell phone?

We purchased a phone adapter for my sons telescope and got some amazing pictures, BUT we believe that they can be clearer. What is the best, or a really good, image editing program for amateur ...
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2 votes
2 answers
182 views

Incorrect Mars orbital time while calculating using Kepler formula in Java

Question: I am trying to make a simple java program to do planetary orbital calculation like how many days it takes to complete the orbital along with each Earth day data but I end up getting a 4 ...
1 vote
0 answers
21 views

How to choose numeric precision when creating a file with STILTS?

I am using the STILTS command-line tools, popular in astronomical data processing, to merge many (~330k) .fits astronomic tables into 1 large table. I am doing this with the STILTS command in the ...
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1 vote
2 answers
62 views

Looking for an interactive star chart

First, apologies; I understand this is like a software request over at Stack Overflow. I'm looking for a star chart for a friend that likes to stargaze while in his outdoors hot tub. He is at latitude ...
1 vote
1 answer
318 views

What objects can I search for using astropy.coordinates?

The spectacular Python package astropy allows the user to search for a celestial object using astropy.coordinates, querying ...
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6 votes
1 answer
98 views

What image analysis approaches/algorithms are used to detect near-Earth objects?

Disclaimer: I am not an astronomer or astrophysicist. I'm a computer scientist. Astronomers collect vast amounts of image data through astronmical surveys. The data is then analysed for signs of ...
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2 votes
0 answers
62 views

Frame used for RGB cube in SAOImage

I have RGB FITS images with NAXIS=3 so I read them into SAOImage (ds9 8.2.1). I use this command line: $ ds9 -rgbcube myimage.fits Doing so, the window is split in ...
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3 votes
0 answers
47 views

Is there software that will let me calculate things like lunar phases and the position of bodies in the sky in a custom solar system?

I am constructing a fictional solar system and want to be able to calculate astronomical events and locations, like lunar phases and eclipses, plus the positions of other astronomical bodies in the ...
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0 votes
1 answer
80 views

Would it be a good idea to dockerize softwares in order to conduct hands-on tutorial sessions? [closed]

I am going to organize a tutorial in which I intend to train students on semi numerical simulations for reionization. Is it a good idea to supply use Docker to supply the codes? What do you think ...
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2 votes
2 answers
121 views

Basic, learning examples of applications of CFD and MHD in astrophysics, and current research directions using these techniques?

I am an undergraduate in Physics, and I have an opportunity to work with a some of my seniors to learn Computational Fluid Dynamics (CFD) and Magnetohydrodynamics (MHD). I would like to choose my ...
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1 vote
0 answers
27 views

Filtering local region in SIMBAD

I am completely new to astrophysics and currently writing a paper on Cepheid variables for high school physics. I would like to filter out all Cepheid variables in the local system which I would ...
2 votes
1 answer
234 views

Installing IRAF

Recently I asked this question on IRAF like software that can be run in a window but it seems it is not possible. So I installed window subsystem for linux. I followed these steps to install IRAF. ...
1 vote
1 answer
354 views

IRAF Like software that work on Window

My professor asks to me install IRAF for the photometry project but We have a hard time installing it and also I'm more comfortable with the Windows environment (because there is other software that ...
3 votes
1 answer
63 views

Star Map Vs Star Catalogue vs Planetarium Software

What is the difference between a star map, star catalogue and the sky provided by planetarium software? I have read the wiki but was having a hard time understanding how the data, accuracy and detail ...
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1 vote
2 answers
88 views

Opening VLA Export Format data on Windows

I recently downloaded some data from the NRAO archive. It came as a file in the "VLA export format" with the extension .xp1. From what I gather I can open this using some software called ...
9 votes
4 answers
745 views

Is there a term for "path of the Sun at a given point of the Earth"

I want to buy a house and I'm asking myself what quantity of daylight the various sides of the house receive. I know the house is roughly oriented in the east-west direction. But I'd like to know the ...
4 votes
0 answers
75 views

How to place an observer in a cosmological simulation

Suppose I have a cosmological simulation with points in xyz space at a certain redshift in a cube like this: And I have these for many cubes of different redshifts say from z=0 to z=2. Now I want to ...
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3 votes
1 answer
257 views

Mathamatica vs Sympy and Astropy to solve basic astronomy problems: solving linear equations and unit conversion

I realize this may be slightly off topic, but I also believe this is probably the best way to get an answer to my question: What is the best combination of software packages / programming languages to ...
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3 votes
1 answer
149 views

How to I calcuate observed position of the Sun and Moon using the SOFA C library?

There are a number of answers on here that skirt the topic, but no concrete answers. I currently have an implementation based on "Astronomical Algorithms by Jean Meeus" for stars, moon, and ...
1 vote
0 answers
51 views

Variation in g acceleration due to gravity

I want to find a routine which will enable me to calculate the variations in g as a result of the motion of sun and moon. I need to have the date as a variable. I realise that Dennis Milbert's earth ...
5 votes
0 answers
97 views

Search satellite locations on the sky by date and coordinates

I would like to know what satellites, asteroids, comets, etc passed through a certain coordinate or region on the sky at a certain date. I have found sites like NASA's HORIZONS, but this searches for ...
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3 votes
1 answer
724 views

Easy interactive visualization of orbital elements

To get a grip on orbital elements, I'd like to play with a ready interactive visualization like in Universe Sandbox. E.g. drag the inclination slider and see immediately what happens to the satellite ...
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1 vote
1 answer
84 views

Accurate catalogue of the Stars according to Hemisphere

I am in the need for an accurate catalogue of the stars in the Hemisphere I am currently in (or the one that I chose) and their positions at any time of the year. The more accurate the catalogue is, ...
1 vote
1 answer
204 views

MOOG 2019 and gfortran

I've been trying to install MOOG Nov2019 (utexas, Wiki) on my desktop running OpenSUSE 13.1. I have the SM and X11 library paths copied into the makefile, and I am 3-sigma confident that they are the ...
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2 votes
0 answers
62 views

Software apps for calculating distances between planets

Are there somewhere any software apps for calculating distances between any planets in our solar system?
2 votes
0 answers
52 views

Is there any synthetic spectrum software for neutron star?

Is there any software that can calculate the emergent spectrum of a neutron star photosphere, for Teff is about 1e7K, density is above 1e21-1e22 cm^-3 ? Output line wavelength is about 0-100A is ...
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1 vote
1 answer
85 views

trouble installing drizzlepac

I'm trying to install drizzlepac to follow this tutorial on aligning hst images: https://spacetelescope.github.io/notebooks/notebooks/DrizzlePac/align_to_catalogs/align_to_catalogs.html However, I get ...
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2 votes
2 answers
95 views

Tools for simulation of theoretical astronomical problems?

I tried looking around for open source tools that would allow me to run simulations and build on top of the code with my own need(mainly mathematical simulations, but 3D visuals would be a bonus.), ...
16 votes
3 answers
3k views

Is there an online planetarium where the observer is on another celestial body?

I know about in-the-sky.org and its online planetarium feature, but that's from the Earth's perspective. Is there a planetarium (preferably online but if not, that's fine) where the observer is on ...
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2 votes
0 answers
45 views

GPU-based astronomical software for MacOS/AMD/OpenCL environment

I notice that most astronomical software that uses GPUs to accelerate computation makes use of Nvidia's CUDA toolkit. Are there established software packages that, instead, can be used on a modern Mac ...
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2 votes
0 answers
176 views

"Real time" Stellarium Scripting?

I'm getting into scripting in Stellarium, and it's fairly similar to the scripting language used in a real Planetarium I used to work in, which used DigitalSky2, if memory serves. In the Planetarium I ...
3 votes
2 answers
456 views

Convert Stellarium video capture to 360 for youtube

I am wanting to capture video of Stellarium (I can already do this with CamStodio) and somehow convert this into a video usable for the YouTube 360 (or VR!) capability. Even if it can be converted ...
2 votes
0 answers
54 views

Is science data from astronomical telescopes analyzed with something analogous to "optical character recognition"?

Do people manually input the science data from telescopes into databases or does some software automatically collect the data from telescopes and put it in servers and databases? I'd imagine there's ...
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3 votes
2 answers
133 views

Is looking through a telescope to do astronomy a thing of the past?

Do astronomers actually look through a telescope with the naked eye or do they mostly look the the data generated by telescopes on computers? Are they mostly working behind the computer and pencil ...
user avatar
1 vote
4 answers
169 views

Is this render of a ringed planet's shadow accurate?

I've noticed that when it's the equinox on this planet I'm making, the sun seems to cast a double shadow on the planet. How come the planet's ring seems to make two shadows with a space in between, ...
2 votes
1 answer
291 views

How to install Distro Astro operating system?

I've recently started a project on Galaxy spectroscopy for which I had to use IRAF software. During the search for IRAF software, I came across a platform which said that Distro Astro is a very good ...
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9 votes
2 answers
2k 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 ...
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11 votes
2 answers
3k views

On the consistency of different well-polished astronomy software

I have purchased a custom wedding band from a seller that claims the ring will show the constellations visible at the horizon on a specific date at a certain date and time. However, I have fired up ...
2 votes
0 answers
117 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 ...
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