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161P/Hartley-IRAS

Perihelion distance : 1.27 AU
Inclination to ecliptic : 96 °
Orbital period : 21.46 years
Eccentricity : 0.84

NASA/JPL elements
IAU/MPC elements


On 2026 Oct 01 20h09 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Magnitude (MPC m2)14.4
Aperture radius for m27.2 "
Magnitude bandG
r (dist/Sun) 1.489 AU
d (dist/Earth) 0.504 AU
Right ascension349.24745 °
Declination-5.64609 °
ADES report
# version=2022
# observatory
! mpcCode Y87
# submitter
! name J.-G. Bosch
# observers
! name J.-G. Bosch
# measurers
! name J.-G. Bosch
# telescope
! design reflector
! aperture 0.25
! fRatio 4.75
! detector CMO
# software
! astrometry Tycho 13.6
! photometry Tycho 13.6
permID |provID     |trkSub  |mode|stn |obsTime                |ra         |dec        |rmsRA|rmsDec|rmsFit|astCat  |mag  |rmsMag|band|photCat |photAp|logSNR|exp |notes|remarks
   161P|           | ABC1838| CMO|Y87 |2026-10-01T20:08:45Z   |349.24745  |-5.64609   |0.20 |0.25  |0.32  |   Gaia2|14.5 |0.03  |   G|   Gaia2| 7.2  |2.02  | 540|    K|
   161P|           | ABC1838| CMO|Y87 |2026-10-01T20:17:56Z   |349.22932  |-5.63983   |0.20 |0.25  |0.32  |   Gaia2|14.4 |0.02  |   G|   Gaia2| 7.2  |2.03  | 540|    K|
   161P|           | ABC1838| CMO|Y87 |2026-10-01T20:27:17Z   |349.21084  |-5.63340   |0.21 |0.24  |0.32  |   Gaia2|14.4 |0.04  |   G|   Gaia2| 7.2  |2.04  | 540|    K|
Instrument typeNewton
Instrument aperture (0=naked eye)250 mm
Instrument focale length1187.5 mm
Instrument focale/diameter4.75
CameraAsi 294MM
SensorCMOS
Sensor temperature-5 °C
Binning4x4
MountEQ6-R pro
Picture exposure details81x20s
Observatory MPC codeY87
LocationTrevinca skies-Amalthea
Reference stars catalog (ast)Gaia2
Reference stars catalog (phot)Gaia2
Used softwaresTycho Tracker
Image resize factor1
Resulting picture sampling (scale)1.6 "/pix
Observation submission date2026 Oct 02 06h09m21s
Observation modification date2026 Oct 02 11h49m35s

(Record n° 31932)

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