C/2024 J4 (Lemmon) (Record n° 29622)
NASA/JPL elements
IAU/MPC elements
On 2025 Mar 31 03h06 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 18.7 m2 standard deviation 0.1 Aperture radius used for m2 6.5 " r (dist/Sun) 5.698 AU d (dist/Earth) 5.260 AU Right ascension 16 48 11.01 h m s Declination +29 52 17.2 ° ' " MPC report COD C10
CON J.-F. Soulier [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.30-m f/3.8 Newtonian reflector + CCD
ACK C10 2025.03.31 07:37:26
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
CK24J040 KC2025 03 31.12898 16 48 11.01 +29 52 17.2 18.8 R C10
CK24J040 KC2025 03 31.16098 16 48 09.31 +29 52 27.6 18.6 R C10
Instrument type Newton Instrument aperture (0=naked eye) 300 mm Instrument focale length 1140 mm Instrument focale/diameter 3.8 Filter(s) None Camera ST8 XME Sensor CCD Sensor temperature -20 °C Binning 1x1 Mount F60a Axis Instruments Autoguide No Exposure details 40 x 60s Observatory MPC code C10 Location Seine et Marne Reference stars catalog UCAC-4
Used softwares Astrometrica Resulting picture sampling (scale) 1.62 "/pix Remarks or comments Echant. SETUP Observation submission date 2025 Mar 31 07h45m20s Observation modification date 2025 Mar 31 08h12m44s