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Optical and Near-IR Imaging Observations of Comet Austin 1989c1Near-nucleus imaging observations of comet Austin 1989cl were carried out by the Japanese CCD imaging team. Six telescopes were used to monitor the time variation of the near-nucleus images in C2, CN, H2O+, Na, continuum in the optical region, and in J, H, K bands in the near-IR region. A featureless, round shape of the comet was revealed in all images. Although some of the Jet features are recognized by using image enhancement technique, the azimuthal difference of the intensity distribution is about 10%. The images in the H20+ band show complex ion structures near the nucleus.
Document ID
19910011702
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
J Watanabe (National Astronomical Observatory of Japan Mitaka-shi, Japan)
N Hlromoto (National Institute of Information and Communications Technology Tokyo, Japan)
H Takami (National Institute of Information and Communications Technology Tokyo, Japan)
Te Aoki (The University of Tokyo Tokyo, Japan)
T Nakamura (National Astronomical Observatory of Japan Mitaka-shi, Japan)
K Takagishi (University of Miyazaki Miyazaki, Japan)
I Hatsukade (University of Miyazaki Miyazaki, Japan)
B Suzuki (Koshigaya High School Koshigaya, Japan)
H Kurihara (Kanagawa prefectural Kanagawa Technical High School Yokohama, Japan)
S Isobe (National Astronomical Observatory of Japan Mitaka-shi, Japan)
G Sasaki (National Astronomical Observatory of Japan Mitaka-shi, Japan)
H Agata (Sundai Gakuen High School Kita City, Tokyo, Japan)
Y Taniguchi (The University of Tokyo Tokyo, Japan)
H Suga (The University of Tokyo Tokyo, Japan)
S Okamura (The University of Tokyo Tokyo, Japan)
S Ichikawa (National Astronomical Observatory of Japan Mitaka-shi, Japan)
Date Acquired
September 6, 2013
Publication Date
June 15, 1990
Publication Information
Publication: Workshop on Observations of Recent Comets (1990)
Publisher: National Aeronautics and Space Administration
Subject Category
Astronomy
Report/Patent Number
NASA-CR-188960
Meeting Information
Meeting: Workshop on Observations of Recent Comets
Location: Albuquerque, NM
Country: US
Start Date: June 15, 1990
End Date: June 16, 1990
Sponsors: National Aeronautics and Space Administration
Accession Number
91N21015
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.

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IDRelationTitle19910011699Collected WorksWorkshop on Observations of Recent Comets (1990)
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