8474 RETTIG binary system discovery

Minor Planet 8474 Rettig from Roger Groom on Vimeo. Video sequence of the minor planet 8474 Rettig moving across the night sky. [caption id="attachment_1915" align="alignnone" width="958"] 8474 Rettig - 2015-07-11T10:43 UTC[/caption] I often participate in astronomical research by way of providing observations to other amateurs and to professionals. The promise…