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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 15 18h32 UT by Francois Kugel


(Copyright Francois Kugel)

Magnitude (MPC m2)15.4
Aperture radius for m26.3 "
Magnitude bandVj
r (dist/Sun) 1.399 AU
d (dist/Earth) 0.613 AU
Right ascension316.50573 °
Declination+6.67656 °
ADES report
# version=2022
# observatory
! mpcCode A77
# submitter
! name F. Kugel
# observers
! name F.Kugel
# measurers
! name F. Kugel
# telescope
! design reflector
! aperture 0.40
! fRatio 2.8
! 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|           | FD26094| CMO|A77 |2026-10-15T18:31:46.3Z |316.50573  |+6.67656   |0.37 |0.37  |0.52  |  ATLAS2|15.4 |0.04  |  Vj|  ATLAS2| 6.3  |1.63  | 270|    K|
   161P|           | FD26094| CMO|A77 |2026-10-15T18:37:15.1Z |316.49918  |+6.67906   |0.35 |0.35  |0.49  |  ATLAS2|15.4 |0.03  |  Vj|  ATLAS2| 6.3  |1.63  | 255|    K|
   161P|           | FD26094| CMO|A77 |2026-10-15T18:42:32.6Z |316.49290  |+6.68147   |0.36 |0.35  |0.50  |  ATLAS2|15.4 |0.04  |  Vj|  ATLAS2| 6.3  |1.62  | 255|    K|
Instrumental configurationConfig2
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
FilterNone
CameraIMX492
SensorCMOS
Binning2x2
Picture exposure details52x15s
Observatory MPC codeA77
Reference stars catalog (ast)ATLAS2
Reference stars catalog (phot)ATLAS2
Resulting picture sampling (scale)0.85 "/pix
Observation submission date2026 Oct 15 19h50m11s
Observation modification date2026 Oct 15 19h51m16s

(Record n° 31983)

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