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261P/Larson

Orbital period : 6.52 years

NASA/JPL elements
IAU/MPC elements


On 2025 Sep 11 23h38 UT by Jean-Louis Virlichie


(Copyright Jean-Louis Virlichie)

Nuclear magnitude (m2)18
m2 standard deviation0.0
Aperture radius used for m26.0 "
r (dist/Sun) 2.180 AU
d (dist/Earth) 1.427 AU
Right ascension19 43 15.39 h m s
Declination-17 14 24.0 ° ' "
MPC report
COD X03
CON J. L. Virlichie [jl.virlichie@gmail.com]
OBS J. L. Virlichie, P. Traverse, H. Roy
MEA J. L. Virlichie
TEL 0.36-m f/4.8 reflector + CMO
NUM 4
ACK MPCReport file updated 2025.09.12 13:26:29
NET Gaia DR2
AC2 jl.virlichie@gmail.com
0261P        KB2025 09 11.98480 19 43 15.39 -17 14 24.0          18.0 G      X03
0261P        KB2025 09 12.00067 19 43 15.56 -17 14 21.6          18.0 G      X03
0261P        KB2025 09 12.01655 19 43 15.76 -17 14 19.5          18.0 G      X03
0261P        KB2025 09 12.03241 19 43 15.93 -17 14 17.3          18.0 G      X03
Instrumental configurationConfig1
InstrumentONTC 355
Instrument typeNewton
Instrument aperture (0=naked eye)360 mm
Instrument focale length1728 mm
Instrument focale/diameter4.8
Filter(s)L
CameraPlayer One IMX571 Mono
SensorCMOS
Sensor size23.5x15.7 mm2
Sensor pixels number6252x4176
Sensor temperature-10 °C
MountSW EQ8
AutoguideYes
Exposure details11x2mn
Observatory MPC codeX03
LocationPoroto Chili
Reference stars catalogGaia DR2
Used softwaresTycho V10.5
Resulting picture sampling (scale)0.86 "/pix
Observation submission date2025 Sep 12 19h37m58s
Observation modification date2025 Sep 12 19h41m17s

(Record n° 30034)

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