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COMET C/2022 L1 (CATALINA)

Photometric data obtained from FOCAS-II software

CATALOG: Gaia DR2 - BAND: G

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

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

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                                                                     AFRHO         LOG

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

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

http://cara.uai.it

Comet C/2022 L1 (Catalina) (astro.vanbuitenen.nl)

Discovery:  [ CBET 5134 : 20220613 : COMET C/2022 L1 (CATALINA) ]

An apparently asteroidal object discovered on June 4 with the 0.68-m Schmidt reflector of the Catalina Sky Survey has been found to show cometary appearance by CCD astrometrists elsewhere after the Minor Planet Center posted it to the PCCP webpage on the basis of a comet-like orbit.  

Sixty stacked 60-s exposures taken by A. Aletti, F. Bellini, L. Buzzi, and G. Galli (and measured by Aletti) with a 0.36-m f/8.4 reflector at Hakos, Namibia, in good conditions on June 8.1 UT show a condensed 6" coma elongated in p.a. 235 degrees, with a possible faint outer coma up to 15" wide.

E. Bryssinck, Kruibeke, Belgium, writes that twenty-five stacked luminance- filtered 60-s exposures taken remotely by a large group of observers using a "Telecope Live" 0.61-m f/6.5 reflector at Rio Hurtado, Chile, on June 9.3 UT show a condensed coma of size 11", with magnitude 19.5 as measured in a circular aperture of radius 5".5, with no clear tail visible.  

Twelve stacked 60-s exposures taken remotely by H. Sato (Tokyo, Japan) using a 0.51-m f/6.8 astrograph at Mayhill, NM, USA, on June 11.4 show a strongly condensed coma 12" in diameter with no tail; the magnitude was 18.9 as measured within a circular aperture of radius 6".5

MPEC 2022-L97 : COMET C/2022 L1 (Catalina)