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Observation date

image

Photometry

(FOCAS)

Afρ

astrometry

Observatory

20120908

X

X


X

B96 (BRIXIIS)

20121010

X

X

X

X

B96 (BRIXIIS)

20121022

X

X

X

X

B96 (BRIXIIS)

20121027

X

X

X

X

B96 (BRIXIIS)

20121031

X

X

X

X

H06 (iTelescope.net)

20121101

X

X

X

X

B96 (BRIXIIS)

20121102

X

X

X

X

B96 (BRIXIIS)

20121104

X

X

X

X

B96 (BRIXIIS)

20121114

X

X

X

X

B96 (BRIXIIS)

20121217

X

X

X

X

B96 (BRIXIIS)











































168P/Hergenrother = P/1998 W2 = 2005 N2 (HERGENROTHER)

The comet originally named P/1998 W2, C W Hergenrother found a comet on CCD images obtained by Timothy B. Spahr on Nov. 22.10 in the course of the Catalina Sky Survey. The comet was 17th magnitude and will fade. The comet was a short period one, almost at perihelion.returned in 2005 and got the temporary name P/2005 N2 and assigned later as comet 168P/HERGENROTHER

Photometric data obtained by use of FOCAS-II software



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

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

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

168P          08/09/2012 03:17:34  14.21  13.34  12.97  12.77  12.63  12.53  12.2  17.6  B96

168P          08/09/2012 03:17:34*  0.10   0.04   0.02   0.02   0.02   0.01     5   4.3  CMC

168P          16/09/2012 00:37:41  14.27  13.37  12.99  12.77  12.61  12.47   7.0  17.5  B96

168P          16/09/2012 00:37:41*  0.00   0.00   0.00   0.00   0.00   0.00     1   4.4  CMC

168P          19/09/2012 00:06:21  14.01  13.28  12.96  12.75  12.58  12.45  13.9  18.1  B96

168P          19/09/2012 00:06:21*  0.05   0.03   0.03   0.03   0.03   0.03     7   4.4  CMC

168P          10/10/2012 23:31:28  11.45  10.72  10.36  10.12   9.95   9.82  28.9  17.9  B96

168P          10/10/2012 23:31:28*  0.02   0.03   0.03   0.02   0.03   0.03     9   3.8  CMC

168P          12/10/2012 20:25:54  11.75  10.94  10.55  10.30  10.13   9.99  20.6  17.9  B96

168P          12/10/2012 20:25:54*  0.04   0.05   0.04   0.04   0.04   0.04     8   4.0  CMC

168P          22/10/2012 21:27:14  13.43  12.50  12.02  11.67  11.42  11.21  15.6  17.5  B96

168P          22/10/2012 21:27:14*  0.07   0.09   0.11   0.13   0.14   0.16     8   3.7  CMC

168P          27/10/2012 22:06:08  13.19  12.56  12.22  11.97  11.77  11.62  30.0  17.4  B96

168P          27/10/2012 22:06:08*  0.02   0.04   0.05   0.05   0.05   0.05     7   3.9  CMC

168P          31/10/2012 06:49:28  13.36  12.69  12.39  12.19  12.03  11.90   8.6  17.2  H06

168P          31/10/2012 06:49:28*  0.05   0.07   0.06   0.06   0.07   0.08     9   2.3  CMC

168P          01/11/2012 18:17:05  13.27  12.55  12.22  12.00  11.84  11.70  22.8  17.6  B96

168P          01/11/2012 18:17:05*  0.02   0.05   0.06   0.06   0.06   0.05     7   3.7  CMC

168P          02/11/2012 20:13:46  13.34  12.62  12.27  12.04  11.88  11.74  21.5  17.8  B96

168P          02/11/2012 20:13:46*  0.03   0.04   0.04   0.04   0.04   0.04    22   3.8  CMC

168P          05/11/2012 05:22:04  13.60  12.87  12.52  12.28  12.09  11.94  15.0  19.1  H06

168P          05/11/2012 05:22:04*  0.05   0.05   0.05   0.05   0.05   0.04     8   2.2  CMC

168P          14/11/2012 19:05:17  14.27  13.41  13.00  12.73  12.51  12.34   9.3  17.6  B96

168P          14/11/2012 19:05:17*  0.10   0.08   0.08   0.07   0.06   0.05     8   3.9  CMC

168P          17/12/2012 20:21:55  16.48  15.85  15.55  15.37  15.20  15.19   7.5  17.3  B96

168P          17/12/2012 20:21:55*  0.10   0.19   0.21   0.14   0.08   0.06     4   3.1  CMC


Comet 168P/Hergenrother - Afρ-plot vs periheliondate with rho = 5000 km according CARA - apperation 2012