C/2000 WM1 (LINEAR) was
discovered by LINEAR on
The light curve The light curve shown below is made up from 344 observations. The magnitudes listed as m2 are taken in R with a 10" aperture. CCD total magnitudes are taken with apertures from 0.2' to 4.7'. m1 is the total visual magnitude. After a rather disappointing photometric performance during its inbound phase the light curve became highly active in November 2001. A 2 magnitude outburst was seen that is best defined in the m2 data in the lower plot - this reached m1=5.5. A second outburst was seen that started 6 days after perihelion and led to a peak magnitude of m1=3.
Although the comet has faded considerably it is still being observed actively. Over the last few months the rate of fade has slowed considerably and the comet remains easily visible to CCD observers with telescopes of 20-25cm.
The absolute magnitude of C/2000 WM1 is 9.0 from the data above, making the comet a much smaller than average object.
The best fit to the light curve outside outburst is:
m1 = 9.0 + 5 log Delta + 7.0 log r
CCD observations in a 10 arcsecond aperture by:
CCD aperture photometry in apertures of 0'.2, 0'.8, 1'.0, 1'.1, 1'.2, 1'.3, 1'.5 and 1'.7 by:
Visual data by:
Última actualización 18/01/2003