An astronomer's calculator used to perform common calculations, conversions and measurements.
An astronomer’s calculator used to perform common calculations, conversions and measurements..
astrocalc [-c] coordflip <ra> <dec> astrocalc sep <ra1> <dec1> <ra2> <dec2> astrocalc timeflip <datetime> astrocalc trans <ra> <dec> <north> <east> astrocalc now mjd astrocalc dist (-z | -m) <distVal> [--hc=hVal --wm=OmegaMatter --wv=OmegaVacuum] COMMANDS: ======== coordflip flip coordinates between decimal degrees and sexegesimal and vice-versa sep calculate the separation between two locations in the sky. timeflip flip time between UT and MJD. trans translate a location across the sky (north and east in arcsec) now report current time in various formats dist convert distance between mpc to z VARIABLES: ========== ra, ra1, ra2 right-ascension in deciaml degrees or sexegesimal format dec, dec1, dec2 declination in deciaml degrees or sexegesimal format datetime modified julian date (mjd) or universal time (UT). UT can be formated 20150415113334.343 or "20150415 11:33:34.343" (spaces require quotes) north, east vector components in arcsec distVal a distance value in Mpc (-mpc) or redshift (-z) hVal hubble constant value. Default=70 km/s/Mpc OmegaMatter Omega Matter. Default=0.3 OmegaVacuum Omega Vacuum. Default=0.7 -h, --help show this help message -m, --mpc distance in mpc -z, --redshift redshift distance -c, --cartesian convert to cartesian coordinates
The easiest way to install astrocalc is to use pip:
pip install astrocalc
Or you can clone the github repo and install from a local version of the code:
git clone firstname.lastname@example.org:thespacedoctor/astrocalc.git cd astrocalc python setup.py install
To upgrade to the latest version of astrocalc use the command:
pip install astrocalc --upgrade
If you want to tinker with the code, then install in development mode. This means you can modify the code from your cloned repo:
git clone email@example.com:thespacedoctor/astrocalc.git cd astrocalc python setup.py develop
Pull requests are welcomed!
Please report any issues here.
Copyright (c) 2016 David Young
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.