Central Bureau for Astronomical Telegrams

Comet C/2017 S2 (PANSTARRS)

Discovery

Comet C/2017 S2 was discovered on four w-band Pan-STARRS1 CCD images taken with the 1.8-m Pan-STARRS1 telescope at Haleakala (Hawaii, USA) on Sept. 16 UT and reported by Eva Lilly (Institute for Astronomy, University of Hawaii). The discovery observations showed evidence for a faint tail 4" long toward the west, but the head appeared essentially stellar.

The discovery details were announced on CBET 4431.

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