Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.4510h&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #45.10; Bulletin of the American Astronomical Society, Vol. 34, p.1173
Astronomy and Astrophysics
Astronomy
Scientific paper
Comet 28P/Neujmin 1 is a Jupiter family comet that was observed at the CTIO 1.5 m telescope for four days from April 27-30, 2002. The lightcurve that was obtained in broadband R exhibited a period of 12.66 +/- 0.07 hours with a peak to peak variation of 0.56 mag, yielding a lower limit for the nuclear axial ratio of 1.7. The mean magnitude of the comet was 16.74 mag with an estimated effective radius between 12.1 to 14.8 km, assuming a 0.03 and 0.02 albedo, respectively. We also observed the comet in V and I and the extracted colors will be discussed. The values we obtained are in good agreement with previous determinations. Allison M. Heinrichs's research was supported by the NOAO/KPNO Research Experiences for Undergraduates (REU) Program which is funded by the National Science Foundation.
Heinrichs A. M.
Mueller Beatrice E. A.
Samarasinha Nalin H.
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