A package for performing stellar photometry.
Project description
A Python Package for Stellar Photometry
Stellarphot is a Python package to allow you to turn reduced astronomical images of point sources (e.g. stars) into useful photometry, with a focus on variable star and exoplanet transit observations. Specifically:
- If you have reduced astronomical images as FITS files but haven't obtained photometry yet,
stellarphotcan perform aperture photometry on your images. - If you already have aperture photometry for a field,
stellarphotcan- choose comparison stars based on a catalog (e.g. APASS DR9),
- calculate relative flux (like AstroImageJ),
- calculate calibrated magnitudes by transforming to a catalog (e.g. APASS DR9), and/or
- calculate calibrated magnitudes with a user-provided set of comparison stars (as is done in AAVSO submissions).
- If you are working with exoplanet transit observations,
stellarphotcan turns the photometry into exoplanet transit light curves (see installation notes below).
Installation
stellarphot requires Python 3.10 or later.
You can install stellarphot with either pip or conda. If you are interested in stellarphot for exoplanet transit light curves, conda is recommended at the moment because of an issue with installing one of the dependencies.
-
Install with
condausingconda install -c conda-forge stellarphotIf you are interested in exoplanet light curve fitting, also install
batmanusingconda install -c conda-forge batman-package -
Install with
pipusingpip install stellarphotor if you are interested in exoplanet light curve fitting you should instead use:
pip install stellarphot[exo_fitting]
Getting started with stellarphot
- Start Jupyterlab from the command line:
jupyter lab - Once JupyterLab opens in your web browser, open the Launcher (see Figure below)
- Click on the notebook you want (see figure below) and follow the instructions in the notebook. Output files and the settings used to generate them will show up in the file browser
Questions?
Feel free to contact @mwcraig or @JuanCab with your questions about using stellarphot.
Contributors
License
This project is Copyright (c) 2019-2024 The Stellarphot Team and licensed under the terms of the BSD 3-Clause license. This package is based upon the Astropy package template which is licensed under the BSD 3-clause license.
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