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C/2023 H5 (Lemmon)


NASA/JPL elements
IAU/MPC elements


On 2025 May 30 21h48 UT by Patrick Ditz


(Copyright Patrick Ditz)

Nuclear magnitude (m2)14.7
m2 standard deviation0.0
Aperture radius used for m25.6 "
Afrho470 cm
Afrho error15 cm
r (dist/Sun) 4.320 AU
d (dist/Earth) 4.538 AU
Right ascension10 36 21.61 h m s
Declination+65 20 42.5 ° ' "
MPC report
COD K97
CON P.Ditz
OBS P.Ditz
MEA P.Ditz
TEL 0.54-m f/3.75 reflector + CCD
NUM 3
ACK MPCReport  CodK97-PDI #CK23H050 obs2025-05-30 (r_36x120s_bin2) file updated 2025.05.31 09:30:26
NET ATLAS2
AC2 patrick.ditz@wanadoo.fr,pat.ditz@gmx.fr
    CK23H050 KC2025 05 30.90861 10 36 21.61 +65 20 42.5          14.7 r      K97
    CK23H050 KC2025 05 30.92742 10 36 21.82 +65 20 40.2          14.7 r      K97
    CK23H050 KC2025 05 30.94550 10 36 22.01 +65 20 38.0          14.7 r      K97
Instrumental configurationConfig1
InstrumentT540
Instrument typeNewton
Instrument aperture (0=naked eye)540 mm
Instrument focale length2025 mm
Instrument focale/diameter3.75
Filter(s)R (RGB)
CameraAtik 460EX
SensorCCD
Sensor size10x12.5 mm2
Sensor pixels number2749x2199
Sensor temperature-10 °C
Binning2x2
MountVMA300
Exposure total time4200 s
Exposure details35x120s
Moon phase146 °
Moon elongation47 °
Air mass1.3
Observatory MPC codeK97
LocationFreconrupt
Reference stars catalogATLAS2
Used softwaresTycho Tracker
Image resize factor1
Resulting picture sampling (scale)0.93 "/pix
Image processingPrism11 & Gimp
Remarks or commentsl'Afrho a été calculé avec "Comet Photometry" de Tycho Tracker. L'Afrho correspond à une distance de 30 000 km. A 40 000 km l'Afrho vaut 410 cm
Observation submission date2025 May 31 12h17m00s
Observation modification date2025 Jun 10 19h52m36s

(Record n° 29709)

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