| July 31, 2000 |
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Unfiltered false-color image of comet C/1999 S4 (LINEAR), obtained on 2000 July 31.830UT with 19-cm, f/4 flat field S-C telescope and 1500 x 1000 CCD.
Exposure time was 2 minutes. Copyright © 2000 by J. Skvarc and H. Mikuz.
(Size 117K) |
| July 30, 2000 |
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Unfiltered false-color images of comet C/1999 S4 (LINEAR), obtained on 2000 July 30.838UT with 19-cm, f/4 flat field S-C telescope and 1500 x 1000 CCD.
Exposure time was 2 minutes. The right image was processed in a way thet show strongly elangated and almost flat inner coma. No central condensation is present.
Copyright © 2000 by J. Skvarc and H. Mikuz.
(Size 114K, 118K) |
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Unfiltered image of comet C/1999 S4 (LINEAR), obtained on 2000 July 30.838UT with 20-cm, f/6.3 S-C telescope and CCD. Image is a composition of twelve 30-sec exposures.
The image size is 19x13 arc min with North at the top, East to left. Copyright © 2000 by Rolando Ligustri, C.A.S.T., Italy.
(Size 26K) |
| July 29, 2000 |
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Unfiltered false-color images of comet C/1999 S4 (LINEAR), obtained on 2000 July 29.839UT with 19-cm, f/4 flat field S-C telescope and 1500 x 1000 CCD. Exposure time was 2 minutes.
The right image was processed in a way thet show strongly elangated and almost flat inner coma. No central condensation is present. Copyright © 2000 by J. Skvarc and H. Mikuz.
(Size 160K, 104K) |
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False-color image of comet C/1999 S4 (LINEAR), obtained on 2000 July 29.842UT with 15-cm, f/5 Maksutov-Cassegrain telescope, R filter and CCD.
Exposure time was 1 minute. Copyright © 2000 by H. Mikuz.
(Size 70K) |
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False-color image of comet C/1999 S4 (LINEAR), obtained on 2000 July 29.849UT with 15-cm, f/5 Maksutov-Cassegrain telescope, V filter and CCD.
Exposure time was 1 minute. Copyright © 2000 by H. Mikuz.
(Size 85K) |
| July 28, 2000 |
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Unfiltered image of comet C/1999 S4 (LINEAR), obtained on 2000 July 28 (20h20UT) with 41-cm, f/5 telescope and CCD. Image is a composition of 24 10-sec exposures.
North is at the top, East to left. Copyright © 2000 by Giannantonio Milani, Giuseppe Colombo Observatory, Padova, Italy.
(Size 24K) |
| July 23, 2000 |
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False-color image (left) and w-b image (right) of comet C/1999 S4 (LINEAR), obtained on 2000 July 23 (20h54-21h00UT) with 15-cm, f/5 Maksutov-Cassegrain telescope and CCD.
Image is combined from nine 30sec exposures with Cousins R filter.Copyright © 2000 by H. Mikuz.
(Size 66K, 72K) |
| July 22, 2000 |
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False-color images of comet C/1999 S4 (LINEAR) processed in different ways. They show details in ion tail structure (left and middle) as well as inside the comet coma (right image).
Image is composed from ten unfiltered 30sec exposures, obtained on 2000 July 22 (20h46-20h54UT) with 36-cm, f/6.7 S-C telescope and 1024 x 1024 CCD.
Vertical streaks in the coma region are CCD camera artefacts. Copyright © 2000 by J. Skvarc, B. Dintinjana and H. Mikuz.
(Size 240K, 321K, 277K) |
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False-color image (left) and w-b image (right) of comet C/1999 S4 (LINEAR), obtained on 2000 July 22 (20h43-20h48UT) with 15-cm, f/5 Maksutov-Cassegrain telescope and CCD.
Image is combined from eight 30sec exposures with Cousins R filter. Copyright © 2000 by H. Mikuz.
(Size 70K, 65K) |
| July 21, 2000 |
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False-color image (left) and b-w image (right) of comet C/1999 S4 (LINEAR), obtained on 2000 July 21 (20h45-20h51UT) with 15-cm, f/5 Maksutov-Cassegrain telescope and CCD.
Image is combined from ten 30sec exposures with Cousins R filter. Copyright © 2000 by H. Mikuz.
(Size 61K, 39K) |
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False-color image of comet C/1999 S4 (LINEAR), obtained on 2000 July 21.862UT with 15-cm, f/5 Maksutov-Cassegrain telescope, R filter and CCD.
Exposure time was 1 minute. Copyright © 2000 by H. Mikuz.
(Size 86K) |
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False-color image of comet C/1999 S4 (LINEAR), obtained on 2000 July 21.853UT with 15-cm, f/5 Maksutov-Cassegrain telescope, V filter and CCD.
Exposure time was 1 minute. Copyright © 2000 by H. Mikuz.
(Size 87K) |
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Image of comet C/1999 S4 (LINEAR), obtained on 2000 July 21.867UT with 20-cm, f/6.3 S-C telescope, CCD and R filter. Image is a composition of twelve 60-sec exposures.
The image size is 30x20 arc min with North to the left, East at bottom. Copyright © 2000 by Rolando Ligustri, C.A.S.T., Italy.
(Size 23K) |