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Comet C/2020 H7 (LEMMON)

Photometric data obtained from FOCAS-II software

COD X02

OBS Telescope.Live Observatory

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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FoCAs 3.66

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

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

http://cara.uai.it

COMET C/2020 H7 (LEMMON)

     An apparently asteroidal object discovered on images taken by G. J. Leonard with the Mount Lemmon Survey 1.5-m reflector on Apr. 29.4 UT has been found to show cometary appearance by observers elsewhere after the object was posted on the Minor Planet Center's PCCP webpage.

... (Snip)  H. Sato, Tokyo, Japan, writes that fourteen stacked 60-s exposures taken remotely with a 0.61-m f/6.5 astrograph located at the Sierra Remote Observatory near Auberry, CA, USA, on May 2.5 UT show a stellar appearance; the magnitude was 20.8 as measured within a circular aperture of radius 3".7.

Twenty-five stacked 120-s unfiltered exposures taken by E. Bryssinck, Kruibeke, Belgium, with a 0.4-m f/3.8 reflector, during May 11.94-11.97 shows a diffuse, elongated coma of size 8" x 11", oriented north-south (p.a. About 183 deg); the magnitude was 20.0 in an aperture of radius 5". ... (Snip)