Printable finder charts for
by Dominic Ford
Use this form to generate customised finder-charts for planets, asteroids and comets. Charts can be generated
over periods ranging from three days to three months.
You can download this image from:
The charts above were generated using
a command-line tool for producing vector-graphics charts of the night sky,
written by the author and freely available for download.
The paths of the planets are taken from the
DE430 planetary ephemeris computed by the Jet Propulsion Laboratory (JPL). Planetary positions were extracted from the DE430
which was also written by the author, and is also freely available for download.
Asteroid positions are computed from orbital elements made available by Ted Bowell at the
Comet positions are computed from orbital elements published by the
Minor Planet Center (MPC).
Star positions and magnitudes were taken from the
Gaia DR1 catalogs.