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COMET C/2021 T1 (Lemmon)

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/2021 T1 (LEMMON) (astro.vanbuitenen.nl)

Discovery:  CBET 5053 : 20211008 : COMET C/2021 T1 (LEMMON)

R. Haver and R. Gorelli report cometary activity of an asteroidal NEOCP candidate (submitted by Mount Lemmon Survey on Oct. 2 UT) in forty 90-second images taken on Oct. 2 at Frasso Sabino Observatory (157), noting a diffuse 8" coma. Prediscovery images were reported back to Sep. 2021.  Additional reports of cometary features are as follows:

OC   Date        Reporter           Coma    Tail    PA          Exposures

H06  2021-10-03  H. Sato            6"                           14x60s

B49  2021-10-04  J. Camarasa       12"      10"    180  

B96  2021-10-04  E. Bryssinck       8"      12"    317           30x90s

MPEC 2021-T168: COMET C/2021 T1 (Lemmon)