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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 27 19h00 UT by Francois Kugel


(Copyright Francois Kugel)

Magnitude (MPC m2)15.6
Aperture radius for m26.3 "
Magnitude bandVj
r (dist/Sun) 1.337 AU
d (dist/Earth) 0.826 AU
Right ascension301.86333 °
Declination+12.42835 °
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|           | FD26112| CMO|A77 |2026-10-27T19:00:27.8Z |301.86333  |+12.42835  |0.49 |0.48  |0.69  |   APASS|15.6 |0.06  |  Vj|   APASS| 6.3  |1.68  | 330|    K|
   161P|           | FD26112| CMO|A77 |2026-10-27T19:06:32.3Z |301.85994  |+12.42968  |0.48 |0.45  |0.66  |   APASS|15.6 |0.06  |  Vj|   APASS| 6.3  |1.67  | 330|    K|
Instrumental configurationConfig2
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
FilterNone
SensorCMOS
Binning2x2
Picture exposure details11x30s
Observatory MPC codeA77
Reference stars catalog (ast)APASS
Reference stars catalog (phot)APASS
Resulting picture sampling (scale)0.85 "/pix
Observation submission date2026 Nov 03 19h45m44s
Observation modification date2026 Nov 03 19h48m12s

(Record n° 32024)

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