Comet 453P/WISE-Lemmon

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Observation date	image	Photometry (FOCAS)	Afρ	astrometry	Observatory
20221113	X			X	B96 - BRIXIIS
20221226	X	X		X	B96 - BRIXIIS

COMET 453P/WISE-Lemmon - (= P/2022 V1 = P/2010 BN_109)

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 453P/WISE-Lemmon (astro.vanbuitenen.nl)

Discovery:

Nakano was able to link the comet with an asteroid discovered by WISE on 2010 January 28.89 and designated as 2010 BN109. [MPEC 2022-W148, CBET 5193, 2022 November 23]. The comet is at perihelion at 2.3 au in 2023 March and has a period of 12.7 years.

Recovery: [ CBET 5193 ]

H. Sato reports cometary activity of an asteroidal NEOCP candidate (initially reported by Mt. Lemmon Survey on Nov. 1 UT) in 12-stacked 60-second exposures obtained at iTelescope Observatory (H06), noting a very condensed 8" coma. Prediscovery positions were reported from Oct. 2022. Subsequently, S. Nakano has identified this object with 2010 BN109 (MPS 343780). Additional reports of cometary features are as follows:

OC Date Reporter Coma Tail PA Exposures

G00 2022-11-02 M. Jaeger 7" 20" 245-290 25x120s

204 2022-11-04 A. Aletti 6" 5" 270 170x60s

B96 2022-11-13 E. Bryssinck 11" 9" 249 25x120s

T08 2022-11-22 A. Fitzsimmons 10" 4x30s

MPEC 2022-W148 : COMET P/2022 V1 = P/2010 BN109 (WISE-Lemmon)