Copyright © All rights reserved. Made By Erik Bryssinck  Terms of use  |  Privacy policy

Comet C/2007 Q3 (SIDING-SPRING)

IAUC 8865

An apparently asteroidal object discovered by Donna M. Burton with the 0.5-m Uppsala Schmidt telescope in the course of the

Siding Spring survey and posted on the 'NEOCP' webpage, has also been found to show cometary appearance by Sarneczky and Kiss, who on Aug. 30.8 UT found a 6" coma and 12"-long tail in p.a. 290 deg on a 1800-s co-added image taken with the 1.0-m reflector at Siding Spring.  Also, N. Teamo and J. C. Pelle write that CCD exposures taken on Aug. 29.6 with a 0.35-m reflector at Punaauia, Tahiti, show the comet's FWHM image to be larger than those of neighboring stars of similar brightness.

                                  10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB   COD

OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

------------  ---------- --------  -----  -----  -----  -----  -----  -----  ----  ----  ---

C/2007 Q3     09/03/2010 20:49:28  13.86  13.10  12.73  12.51  12.36  12.24  15.7  16.3  B96

C/2007 Q3     09/03/2010 20:49:28*  0.01   0.02   0.02   0.03   0.03   0.03     7   4.4  USN

C/2007 Q3     19/03/2010 09:34:21  14.35  13.57  13.20  12.97  12.81  12.69  15.9  17.8  H10

C/2007 Q3     19/03/2010 09:34:21*  0.02   0.03   0.02   0.01   0.01   0.02     5   1.7  USN

C/2007 Q3     27/03/2010 11:52:16  14.32  13.58  13.21  12.97  12.80  12.65  25.1  19.5  H10

C/2007 Q3     27/03/2010 11:52:16*  0.00   0.01   0.01   0.02   0.03   0.04     5   3.6  USN

C/2007 Q3     09/03/2010 20:49:28  13.86  13.10  12.73  12.51  12.36  12.24  15.7  16.3  B96

C/2007 Q3     09/03/2010 20:49:28*  0.01   0.02   0.02   0.03   0.03   0.03     7   4.4  USN

C/2007 Q3     19/03/2010 09:34:21  14.35  13.57  13.20  12.97  12.81  12.69  15.9  17.8  H10

C/2007 Q3     19/03/2010 09:34:21*  0.02   0.03   0.02   0.01   0.01   0.02     5   1.7  USN

C/2007 Q3     27/03/2010 11:52:16  14.32  13.58  13.21  12.97  12.80  12.65  25.1  19.5  H10

C/2007 Q3     27/03/2010 11:52:16*  0.00   0.01   0.01   0.02   0.03   0.04     5   3.6  USN

C/2007 Q3     04/04/2010 10:54:15   14.42  13.71  13.34  13.11  12.94  12.81  17.5 18.0  H10

C/2007 Q3     04/04/2010 10:54:15*   0.01   0.01   0.01   0.01   0.01   0.01   5    3.4  USN

C/2007 Q3     06/04/2010 20:40:50  14.63  13.89  13.55  13.35  13.23  13.16   9.9  16.4  B96

C/2007 Q3     06/04/2010 20:40:50*  0.02    0.03   0.04    0.03    0.03  0.05   7   3.5  USN

C/2007 Q3     08/04/2010 20:40:43  14.88  14.14  13.77  13.54  13.37  13.26  15.6  17.4  H10

C/2007 Q3     08/04/2010 20:40:43*  0.01   0.02   0.02   0.02   0.02   0.02     8   3.3  USN

C/2007 Q3     13/04/2010 21:46:22  14.70  13.99  13.61  13.39  13.23  13.10  13.7  16.7  B96

C/2007 Q3     13/04/2010 21:46:22*  0.02   0.03   0.02   0.03   0.02   0.03     7   3.2  USN

C/2007 Q3     15/04/2010 20:47:31  14.47  13.70  13.32  13.08  12.92  12.77   9.4  16.1  B96

C/2007 Q3     15/04/2010 20:47:31*  0.03   0.02   0.03   0.03   0.03   0.04     5   3.5  USN

C/2007 Q3     18/04/2010 21:26:07  14.37  13.66  13.30  13.08  12.93  12.82   9.9  16.1  B96

C/2007 Q3     18/04/2010 21:26:07*  0.02   0.03   0.04   0.05   0.06   0.06     6   3.8  USN

C/2007 Q3     22/04/2010 22:01:59  14.41  13.69  13.31  13.07  12.89  12.75  11.0  16.6  B96

C/2007 Q3     22/04/2010 22:01:59*  0.03   0.04   0.03   0.04   0.04   0.04     7   3.4  USN

C/2007 Q3     23/04/2010 21:24:58  14.42  13.69  13.33  13.10  12.94  12.81  12.0  16.8  B96

C/2007 Q3     23/04/2010 21:24:58*  0.02   0.03   0.03   0.02   0.01   0.02     8   3.7  USN

C/2007 Q3     24/04/2010 22:30:17  15.29  14.31  13.72  13.35  13.10  12.94  11.6  16.6  B96

C/2007 Q3     24/04/2010 22:30:17*  1.09   0.75   0.47   0.30   0.22   0.17     7   3.6  USN