Forum der Vereinigung der Sternfreunde

Joshua K. Hogan, Lunar and Planetary Laboratory (LPL), University of
Arizona, reports his discovery of a comet with a "long tail" on 30-s CCD
exposures taken with the Mt. Lemmon Survey's 1.5-m reflector in Arizona on
2023 Dec. 15 UT (discovery observations tabulated below).

2023 UT R.A. (2000) Decl. Mag. Observer
Dec. 15.25302 4 51 18.60 +23 51 38.0 20.0 Hogan
15.25819 4 51 18.32 +23 51 37.6 20.4 "
15.26339 4 51 17.99 +23 51 36.9 20.1 "
15.26856 4 51 17.74 +23 51 36.9 20.3 "

RETRACTION OF M.P.E.C. 2023-B144 and P/2023 X5

On January 28, 2024, the Minor Planet Center erroneously issued
M.P.E.C. 2024-B144 and therefore this publication is being retracted.
The designation P/2023 X5 is being deleted and will be listed as omitted.