[BAA Comets] another amateur comet discovery

[denis buczynski]

COMET C/2018 Y1 (IWAMOTO)

COMET C/2018 Y1 (IWAMOTO)
I. Endoh, National Astronomical Observatory of Japan, Tokyo, reports the
discovery of a comet of magnitude 14.5 by Masayuki Iwamoto (Awa, Tokushima,
Japan) on two 60-s CCD exposures obtained around Dec. 18.84 UT with a 10-cm
f/4.0 Pentax SDUF II telephoto lens and a Canon EOS 6D camera. Iwamoto
reported the approximate position as R.A. = 14h17m45s, Dec. = -24d44' (equinox
J2000.0). S. Nakano, Sumoto, Japan, reports that the discovery images show a
blue coma, and he provides the following astrometry that he measured from
Iwamoto's images:

2018 UT R.A. (2000) Decl. Mag. Observer
Dec. 18.8410 14 17 45.33 -24 44 13.4 12 Iwamoto
18.8417 14 17 45.36 -24 44 15.8 "
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