C/1998 M5 (LINEAR)


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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980913.87  - S 11.1  HS 20.3   T  10  64  1.7  2 ---    ---    Timo Karhula
Site: Virsbo, Sweden.


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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980918.85  - S 11.8  HS 38.4   L  4.3 183 0.8  6 ---    ---    Johan Warell
Comment: Diffuse, small, brighter stellar center. Coma slightly elongated towards PA 030 deg. 
Weather humid, hazy with scattered Cirrus clouds. Site: Rasbo 15 km E Uppsala, Sweden.


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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980923.85  - S 12.5  HS 44.5   L  4.5 255 0.9  6 ---    ---    Lars Hermansson
Comment: Round, diffuse coma. Nearly stellar nucleus. Site: Sandvreten Observatory, Sweden.


CCD image by Jörgen Danielsson 1998 September 23, 20:37-20:40 UT, 
Starlight Xpress SXL8 cooled. Exposure time 3 x 60 sec with Meade LX200 12" f/6.3. 
Field approx 3x3 arcmin. Simulated guiding on comet pseudo-nucleus.


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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981016.84  - S 11.0  HS 44.5  L   4.5 100 2.0  3 ---    ---    Timo Karhula
Site: Virsbo, Sweden.


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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981215.70  - S  9.8  HS 22.0  L    5  80  3.5  7 ---    ---    Johan Warell
Comments: No CC visible. Diffuse, round and large coma. ZLM=6.5. 
Site: UAA Sandvreten Observatory, Sweden.


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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981215.83  - S 10.4 HS  20.3  T   10  102 2.1  3 ---    ---    Timo Karhula
Comments: Disturbed by a streetlight. Site: Virsbo, Sweden.


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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981222.10  - S 10.7  HS 22.0  L    5  80  2.5  5 ---    ---    Johan Warell
Comments: No CC visible. Diffuse, round coma. Altitude 15 degrees. Hazy sky. ZLM=6.5. 
Site: UAA Sandvreten Observatory, Sweden.


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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990416.95  - S  11.1 HS 44.5 L   4.5 110  1.5 6  0.03   070    Johan Warell
Comments: Bright, well condensed. A faint, fuzzy and wide tail about 2 arcmin
long extended eastward from the coma. ZLM +6.7. Site: UAA Sandvreten Observatory, Sweden.