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Images of Comet C/2000 WM1 (LINEAR) were taken on the evening of 2001-11-01 with an ST-7e CCD Camera through an 8" LX200 f/10 telescope.
CCD Session S00009 C/2000 WM1 animation C/2000 WM1 images
The comet could not be seen visually though the LX200, due to bright sky background (full moon 39 deg away) and poor dark adaption, but could be picked up in a 10 sec CCD exposure. Movement of the comet relative to background stars was measured at approximately 1.4 arcmin per hour.
The comet appeared to be a lot fainter than expected (Calibrated m2 Magnitude of only +13.2).
The coma was noticeably brighter in the direction of the sun (more or less in direction of travel). It appears like a short tail but isn't a real tail, an optical artefact can be probably be ruled out (stars in the same image don't show any such feature).
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Comet C/2000 WM1 (LINEAR) | |
2001-11-01, 22:33h UT 10 sec exposure (#9006) |
2001-11-01, 22:38h UT 1 min exposure (#9008) |
2001-11-01, 23:20 to 23:23h UT 3 min exposure (#9009) |
2001-11-01, 23:50 to 23:53h UT 3 min exposure (#9018) [ enhanced image of coma ] [ false colour image ] |
Stacked Images 2001-11-01, 23:42-23:50h UT 3 x 3 min exposure (#9016, 9017, 8018) Stars appear trailed in this image |
Enhanced to maximise comet
detail 2001-11-03, 23:20h UT 3 min exposure (#9009, part). The coma is elongated due to trailing during the exposure. A tail-like feature extends to the right, but this points towards the sun and can't be a real tail ? |
CCD Images taken with ST-7E at 1x1
binning, though 8" LX200 at exposures of 10 sec, 1 min and 3 min exposure. CCD Temperature -15 deg C Images autoguided on star adjacent to main field of view. |
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This Web Page: | CCD Images - Session 9 (2001-11-01) |
Last Updated : | 2015-05-16 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |