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261P/Larson

Orbital period : 6.52 years

NASA/JPL elements
IAU/MPC elements


On 2025 Jul 17 01h33 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Nuclear magnitude (m2)18.6
m2 standard deviation0.5
Aperture radius used for m26.4 "
r (dist/Sun) 2.366 AU
d (dist/Earth) 1.354 AU
Right ascension20 12 56.83 h m s
Declination-18 32 54.8 ° ' "
MPC report
COD Y87
CON J.-G.Bosch
OBS J.-G.Bosch
MEA J.-G.Bosch
TEL 0.25-m f/4.75 reflector + CMO
NUM 221
ACK MPCReport file updated 2025.07.17 18:09:08
NET Gaia DR2
AC2 jgbosch@free.fr
0261P        KB2025 07 17.06450 20 12 56.83 -18 32 54.8          17.9 G      Y87
0261P        KB2025 07 17.07905 20 12 56.11 -18 32 54.2          18.8 G      Y87
0261P        KB2025 07 17.09344 20 12 55.30 -18 32 53.5          19.1 G      Y87
Instrument typeNewton
Instrument aperture (0=naked eye)250 mm
Instrument focale length1187.5 mm
Instrument focale/diameter4.75
CameraAsi 294MM
SensorCMOS
Sensor temperature-10 °C
Binning4x4
MountEQ6
Exposure details140x25s
Observatory MPC codeY87
LocationTrevinca skies-Amalthea
Reference stars catalogGaia DR2
Used softwaresTycho Tracker
Image resize factor2
Resulting picture sampling (scale)1.6 "/pix
Observation submission date2025 Jul 17 18h31m43s
Observation modification date2025 Jul 17 18h38m39s

(Record n° 29814)

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