C/2025 R2 (SWAN) (Record n° 30777)
Orbital period : 781.30 years
NASA/JPL elements
IAU/MPC elements
On 2025 Dec 31 20h46 UT by Patrick Ditz
(Copyright Patrick Ditz)Nuclear magnitude (m2) 17.3 m2 standard deviation 0.1 Aperture radius used for m2 5.6 " r (dist/Sun) 2.114 AU d (dist/Earth) 1.727 AU Right ascension 00 59 46.39 h m s Declination +11 55 50.0 ° ' " MPC report COD K97
CON P.Ditz
OBS P.Ditz
MEA P.Ditz
TEL 0.54-m f/3.75 reflector + CCD
NUM 2
ACK MPCReport CodK97-PDI #CK25R020 obs2025-12-31 (L_32x60s_bin2) file updated 2026.01.01 12:53:47
NET ATLAS2
AC2 patrick.ditz@wanadoo.fr,pat.ditz@gmx.fr
CK25R020 KC2025 12 31.86495 00 59 46.39 +11 55 50.0 17.3 V K97
CK25R020 KC2025 12 31.88000 00 59 47.70 +11 55 55.8 17.2 V K97Instrumental 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) L 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 1860 s Exposure details 31x60s Moon phase 16 ° Moon elongation 46 ° Air mass 1.66 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 Observation submission date 2026 Jan 01 13h32m36s Observation modification date 2026 Jan 01 13h35m03s