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image

Photometry

(FOCAS)

Afρ

astrometry

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20170309

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Q62 - iTelescope.net

20180604

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B96 - BRIXIIS



























































































Comet C/2017 E3 (PANSTARRS)

Photometric data obtained from FOCAS-II software


COD Q62

CON Tzec-Maun - Siding Spring Observatory, Coonabarabran, NSW, Australia

CATALOG: USNO A2.0 / CMC 14-15 - BAND: R


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

COMET         UTC                    +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

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

C/2017 E3     09/03/2017 18:14:47  16.68  16.17  15.97  15.95                10.6  19.9  Q62

C/2017 E3     09/03/2017 18:14:47*  0.04   0.05   0.08   0.12                   7   3.0  USN


                                                                     AFRHO         LOG

COMET         UTC                   DELTA    r    BOX "   MAG   RSR    CM    +/-  AFRHO  OBS

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

C/2017 E3     09/03/2017 18:14:47    5.24   5.84   5.26  16.98   11   1453   137  3.162  Q62



FoCAs 3.50

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

Af(rho) data acoording the CARA-approach is available via request to CARA-coordinator


http://cara.uai.it

CBET 4372 20170313:  Eva Lilly, Rob Weryk, and Richard Wainscoat, Institute for Astronomy, University of Hawaii, report the discovery of another comet on i-band images obtained with the 1.8-m Pan-STARRS1 telescope at Haleakala on Mar. 7 (discovery observations tabulated below), the object showing a broad tail extending for approximately 8" to the south-southwest; the coma shows a full-width-at-half-maximum of approximately 1".8 (vs. 1".1 for nearby stars). .....

...... After the object was posted on the Minor Planet Center's PCCP webpage, other CCD astrometrists also reported on its cometary appearance.  H. Sato, Tokyo, Japan, writes that stacked 60-s....appearance (red mag 17.4-17.5).     E. Bryssinck, Kruibeke, Belgium, relates that stacked images taken remotely with an iTelescope 0.4-m f/3.6 reflector at Siding Spring on Mar. 9.76 show a central condensation with a coma of size 16" x  21" that is elongated towards the southwest (p.a. About 189 degrees); the red magnitude was measured as 17.1 in a photometric aperture of radius 5".  Images taken by A. Maury, B. ......