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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 20h10 UT by Tiago Ferreira


(Copyright Tiago Ferreira)

Magnitude (MPC m2)14.9
Aperture radius for m28.1 "
Magnitude bandVj
r (dist/Sun) 1.489 AU
d (dist/Earth) 0.504 AU
Right ascension349.24893 °
Declination-5.64586 °
ADES report
# version=2022
# observatory
! mpcCode R39
# submitter
! name T. Ferreira
# observers
! name Dobsonian Power
# measurers
! name Tiago Ferreira
# telescope
! design Reflector
! aperture 0.41
! fRatio 3.3
! detector CCD
# software
! astrometry Tycho 13.7
! photometry Tycho 13.7
permID |provID     |trkSub  |mode|stn |obsTime                |ra         |dec        |rmsRA|rmsDec|rmsFit|astCat  |mag  |rmsMag|band|photCat |photAp|logSNR|exp |notes|remarks
   161P|           |  TR0000| CCD|R39 |2026-10-01T20:09:37Z   |349.24893  |-5.64586   |0.28 |0.40  |0.49  |  ATLAS2|14.9 |0.05  |  Vj|  ATLAS2| 8.1  |1.98  |  72|    K|
   161P|           |  TR0000| CCD|R39 |2026-10-01T20:13:04Z   |349.24236  |-5.64392   |0.27 |0.40  |0.48  |  ATLAS2|14.9 |0.05  |  Vj|  ATLAS2| 8.1  |1.91  |  72|    K|
   161P|           |  TR0000| CCD|R39 |2026-10-01T20:19:58Z   |349.22868  |-5.63897   |0.22 |0.45  |0.50  |  ATLAS2|14.9 |0.05  |  Vj|  ATLAS2| 8.1  |1.96  |  72|    K|
Instrumental configurationConfig1
Instrument typeNewton
Instrument aperture (0=naked eye)410 mm
Instrument focale length1353 mm
Instrument focale/diameter3.3
SensorCMOS
Picture exposure details1x8s
Observatory MPC codeR39
Reference stars catalog (ast)ATLAS2
Reference stars catalog (phot)ATLAS2
Resulting picture sampling (scale)0.91 "/pix
Observation submission date2026 Oct 01 23h46m56s
Observation modification date2026 Oct 08 13h15m59s

(Record n° 31930)

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