C/2023 H5 (Lemmon) (Record n° 29709)
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 deviation 0.0 Aperture radius used for m2 5.6 " Afrho 470 cm Afrho error 15 cm r (dist/Sun) 4.320 AU d (dist/Earth) 4.538 AU Right ascension 10 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 configuration Config1 Instrument T540 Instrument type Newton Instrument aperture (0=naked eye) 540 mm Instrument focale length 2025 mm Instrument focale/diameter 3.75 Filter(s) R (RGB) Camera Atik 460EX Sensor CCD Sensor size 10x12.5 mm2 Sensor pixels number 2749x2199 Sensor temperature -10 °C Binning 2x2 Mount VMA300 Exposure total time 4200 s Exposure details 35x120s Moon phase 146 ° Moon elongation 47 ° Air mass 1.3 Observatory MPC code K97 Location Freconrupt Reference stars catalog ATLAS2
Used softwares Tycho Tracker Image resize factor 1 Resulting picture sampling (scale) 0.93 "/pix Image processing Prism11 & Gimp Remarks or comments l'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 date 2025 May 31 12h17m00s Observation modification date 2025 Jun 10 19h52m36s