[Iaude] CBET 5084: 2021 DN_15

quai at eps.harvard.edu quai at eps.harvard.edu
Sat Dec 18 22:33:23 EST 2021

                                                  Electronic Telegram No. 5084
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau at eps.harvard.edu (alternate cbat at iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network

2021 DN_15
     S. S. Sheppard, Carnegie Institution for Science; D. J. Tholen,
University of Hawaii; and C. A. Trujillo, Northern Arizona University, report
that discovery images from the Subaru 8-m meter telescope on Mauna Kea on 2021
Feb. 17 reveal that the transneptunian minor planet 2021 DN_15 (cf. MPEC
2021-Y17) is a binary system.  The primary and secondary were separately
resolved in two images and were measured to have a mean separation of 1".05.
The secondary was about 0.1 magnitude fainter and at position angle about 3
deg from the primary.  Follow-up images from the Magellan 6.5-m telescope on
2021 Mar. 9, 17, and 18 again showed the binary nature of the object with
similar characteristics as at discovery.

NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2021 CBAT
2021 December 19                 (CBET 5084)              Daniel W. E. Green

More information about the Iaude mailing list