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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 05 18h59 UT by Francois Kugel


(Copyright Francois Kugel)

Magnitude (MPC m2)13.2
Aperture radius for m229.9 "
Magnitude bandVj
r (dist/Sun) 1.462 AU
d (dist/Earth) 0.510 AU
Right ascension338.35475 °
Declination-1.69999 °
ADES report
# version=2022
# observatory
! mpcCode A77
# submitter
! name F. Kugel
# observers
! name F.Kugel
# measurers
! name F. Kugel
# telescope
! design reflector
! aperture 0.03
! fRatio 5.0
! detector CMO
# 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|           | FD26060| CMO|A77 |2026-10-05T18:59:34Z   |338.35475  |-1.69999   |0.55 |0.54  |0.78  |  ATLAS2|13.1 |0.06  |  Vj|  ATLAS2|29.9  |1.31  | 490|    K|
   161P|           | FD26060| CMO|A77 |2026-10-05T19:06:59Z   |338.34162  |-1.69486   |0.52 |0.51  |0.73  |  ATLAS2|13.3 |0.08  |  Vj|  ATLAS2|29.9  |1.25  | 490|    K|
   161P|           | FD26060| CMO|A77 |2026-10-05T19:18:10Z   |338.32070  |-1.68711   |0.51 |0.54  |0.74  |  ATLAS2|13.2 |0.14  |  Vj|  ATLAS2|29.9  |1.33  | 480|    K|
Instrumental configurationConfig5
Instrument typeNewton
Instrument aperture (0=naked eye)30 mm
Instrument focale length150 mm
Instrument focale/diameter5.0
FilterNone
CameraIMX662
SensorCMOS
Binning2x2
MountAltaz
AutoguideNo
Picture exposure details143x10s
Observatory MPC codeA77
Reference stars catalog (ast)ATLAS2
Reference stars catalog (phot)ATLAS2
Used softwaresTycho
Resulting picture sampling (scale)3.99 "/pix
Observation submission date2026 Oct 08 17h29m14s
Observation modification date2026 Oct 08 17h30m18s

(Record n° 31949)

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