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C/2025 R2 (SWAN)

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 deviation0.1
Aperture radius used for m25.6 "
r (dist/Sun) 2.114 AU
d (dist/Earth) 1.727 AU
Right ascension00 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      K97
Instrumental configurationConfig1
InstrumentT540
Instrument typeNewton
Instrument aperture (0=naked eye)540 mm
Instrument focale length2025 mm
Instrument focale/diameter3.75
Filter(s)L
CameraAtik 460EX
SensorCCD
Sensor size10x12.5 mm2
Sensor pixels number2749x2199
Sensor temperature-10 °C
Binning2x2
MountVMA300
Exposure total time1860 s
Exposure details31x60s
Moon phase16 °
Moon elongation46 °
Air mass1.66
Observatory MPC codeK97
LocationFreconrupt
Reference stars catalogATLAS2
Used softwaresTycho Tracker
Image resize factor1
Resulting picture sampling (scale)0.93 "/pix
Image processingPrism11 & Gimp
Observation submission date2026 Jan 01 13h32m36s
Observation modification date2026 Jan 01 13h35m03s

(Record n° 30777)

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