Central Bureau for Astronomical Telegrams

Comet C/2017 S3 (PANSTARRS)

Discovery

R. J. Wainscoat and R. Weryk (Institute for Astronomy, University of Hawaii) report the discovery of this comet on four w-band CCD exposures taken with the 1.8-m Pan-STARRS1 telescope at Haleakala on 2017 Sept. 23 UT, noting the comet to be very faint with possible asymmetry to the east; a stacked image showed the comet to have full-width-at-half-maximum of 1".75 in 1".25 seeing.

The discovery details were announced on CBET 4432.

Orbit and Ephemeris

An ICQ ephemeris is available here.

Orbital elements and an ephemeris from the Minor Planet Center are available here.

Orbit diagram

An orbit diagram, when available, is posted here.

Images

Images, when available, are posted here.

Light curve

A light curve of the photometry, when available, is posted here.

Photometry

Published/tabulated photometric observations, when available, are posted here.

Recent photometric observations of this comet from the ICQ archive are available here.

Astrometry

Astrometric observations of this comet from the Minor Planet Center archive are available here.

Links

A list of published articles/papers related to this comet from the Astrophysics Data System are available here.

Central Bureau for Astro. Tel.	Cometary Science Archive	International Comet Quarterly
Minor Planet Center	Origins/Harvard	EPS/Harvard