Astronomy Cast

Astronomy Cast takes a fact based journey through the cosmos as it offers listeners weekly discussions on astronomical topics ranging from planets to cosmology.

2006 HU30

This sequence of 3 track-and-stacks was taken on the evening of October 30, between 21:41 and 23:09 UT. The image is a detail of our standard 22.5 x 15 arcmin field and shows minor planet 2006HU30 moving at a medium speed of 4.3 arcsec/min in northeastern direction. Each frame is a stack of 20 x 30 second exposures with the 16 inch Schmidt-Cassegrain and SBIG ST8-XME camera located on Guidestar Observatory.

Weather conditions not optimal at the beginning but improving during the night as the object was rising from 30° to 49° altitude. The image shows the time of mid-exposure for each stack.

2006HU30 is an Apollo discovered on April 25, 2006 by the Catalina Sky Survey and confirmed by Peter Birtwhistle J95. Our follow-up-astrometry was published in the Minor Planet Electronic Circular Daily Orbit Update MPEC 2006-U95

2004 EU22

Apollo-class asteroid, 18.6 mag , P.A. 323°, 4.28"/min
3 stacks of 20x30 sec., 16 inch SC, ST8-XME 2x2 binned.