Printable finder charts for Astraea
| Color schemes | |||
| Date span | Date of opposition | Dark on light | Light on dark |
| Dec 2011 – May 2012 | 12 Mar | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Dec 2015 – May 2016 | 16 Feb | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Nov 2019 – Apr 2020 | 21 Jan | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Oct 2023 – Mar 2024 | 28 Dec | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Sep 2027 – Feb 2028 | 6 Dec | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Jan 2037 – Jun 2037 | 15 Apr | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Jan 2041 – Jun 2041 | 23 Mar | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Dec 2044 – May 2045 | 26 Feb | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
| Nov 2048 – Apr 2049 | 31 Jan | PNGPDF-RGBPDF-CMYKSVG | PNGPDF-RGBPDF-CMYKSVG |
Credits
The charts above were generated using StarCharter, 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 files using EphemerisCompute, which was also written by the author, and is also freely available for download.
The positions of asteroids are calculated from orbital elements published by Ted Bowell of the Lowell Observatory. Comet positions are computed from orbital elements published by the Minor Planet Center (MPC).
Star positions and magnitudes were taken from the Hipparcos, Tycho, Tycho-2 and Gaia EDR3 catalogs.