1994 XD
Abstract
Further to IAUC 8329, L. A. M. Benner, M. C. Nolan, S. J. Ostro, J. D. Giorgini, J. L. Margot (now at Cornell University), and C. Magri report that Arecibo delay-Doppler images (2380 MHz, 12.6 cm), obtained on June 24-25, reveal that 1994 XD is a binary system. Preliminary estimates, based on range extents at 150-m resolution, give the primary's diameter as about 600 m and a lower bound on the secondary's diameter as 150 m (apparent separation about 600 m on June 24, with uncertainty as much as 300 m).
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- July 2005
- Bibcode:
- 2005IAUC.8563....2B