C/2024 J4 (Lemmon) (Record n° 29604)
NASA/JPL elements
IAU/MPC elements
On 2025 Mar 21 09h02 UT by Herve Roy
(Copyright Herve Roy)Nuclear magnitude (m2) 18.9 m2 standard deviation 0.1 Aperture radius used for m2 6.0 " r (dist/Sun) 5.701 AU d (dist/Earth) 5.374 AU Right ascension 16 55 20.06 h m s Declination +28 58 18.3 ° ' " MPC report COD X03
CON H. Roy [roy-nee@wanadoo.fr]
OBS J. L. Virlichie, P. Traverse, H. Roy
MEA H. Roy
TEL 0.36-m f/4.8 reflector + CMO
NUM 3
ACK MPCReport file updated 2025.03.21 15:30:00
NET Gaia DR2
AC2 roy-nee@wanadoo.fr
CK24J040 KB2025 03 21.37635 16 55 20.06 +28 58 18.3 18.8 G X03
CK24J040 KB2025 03 21.38573 16 55 19.67 +28 58 20.9 18.9 G X03
CK24J040 KB2025 03 21.39294 16 55 19.45 +28 58 22.8 18.9 G X03
Instrumental configuration Config1 Instrument ONTC 350mm Instrument type Newton Instrument aperture (0=naked eye) 360 mm Instrument focale length 1728 mm Instrument focale/diameter 4.8 Filter(s) L Camera PlayerOne IMX571 Mono Sensor CMOS Sensor size 23.5x15.7 mm2 Sensor pixels number 6252x4176 Sensor temperature -10 °C Binning 2x2 Mount SW EQ8 Motorization No Autoguide Yes Exposure details 5x2mn Observatory MPC code X03 Location Monte Patria Chili Reference stars catalog Gaia DR2
Used softwares TychoTracker Resulting picture sampling (scale) 0.86 "/pix Remarks or comments Lune 60% Observation submission date 2025 Mar 21 15h52m35s Observation modification date 2025 Apr 23 18h05m35s