Internet resources
| Digitized Sky Survey: | archive.stsci.edu/cgi-bin/dss_form |
| SIMBAD Astronomical Database: | simbad.u-strasbg.fr/simbad |
| Space and sky-watching news: | www.space.com |
| Observing artificial satellites: | heavens-above.com |
| Digitized Sky Survey: | archive.stsci.edu/cgi-bin/dss_form |
| SIMBAD Astronomical Database: | simbad.u-strasbg.fr/simbad |
| Space and sky-watching news: | www.space.com |
| Observing artificial satellites: | heavens-above.com |