|International Comet Quarterly||Central Bureau for Astronomical Telegrams|
When the comet was recovered by E. Schwab (Egelsbach, Germany) on CCD images taken on 2017 Sept. 20.1 UT by D. Abreu with a 1.0-m f/4.4 reflector at the European Space Agency's Optical Ground Station at Tenerife, Canary Islands, the comet showed no coma and no visible tail on a frame with a total exposure time of 600 s. Schwab obtained follow-up images on Sept. 20.9 with an 0.8-m f/3 Schmidt telescope at Calar Alto. The indicated correction to the prediction by G. V. Williams on MPC 89017 is Δ(T) = +0.15 day; the indicated correction to the prediction by S. Nakano in the ICQ's 2017 Comet Handbook is Δ(T) = +0.08 day.
The recovery details were announced on CBET 4429.
|Central Bureau for Astro. Tel.||Cometary Science Archive||International Comet Quarterly|
|Minor Planet Center||Origins/Harvard||EPS/Harvard|