Planet ISO 1I

Detailed information about planet ISO 1I and its parameters.

Planet

Name
ISO 1I
Planet Status
Confirmed
Discovered in
2017
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
2e-06 RJ
Inclination
Update
2023-06-29
Detection Method
Imaging
Mass Detection Method
Radius Detection Method
Theoretical
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
1I/2017_U1, 'Oumuamua
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

04 Mar 2022
Can We Still Send a Probe to Oumuamua ?   (Marshall Eubanks)
14 Aug 2020
Video   Trajectory of Lyra to 1I/'Oumuamua
29 Nov 2017
Trajectory

  • Incoming direction: RA=18h 42, DEC=+34.3 deg (Meech et al. 2017)
  • Perihelion: 0.25 AU (9 Sept2017)
  • Outgoing direction: RA=23h 52, DEC=24.8 deg (Meech et al.2017)
Physical properties
  • Dimensions: 400 m x 40 m, assuming an albedo 0.04 (Meech et al. 2017),
  • Rotation period: 7.34 hours (Meech et al. 2017).
  • Spectrum: redish (Bannister et al. 2017)

17 Nov 2017 Currently, the "ccordinates" allowed by the structure of tha catalogue are those of the Sun. Later on, as the asteroid will be sufficiently distant from the Sun, its real coordinates, varying slowly, will be updated from time to time.
13 Nov 2017 Although it is not a planet in the IAU sense, it is of interest for exoplanet.eu (like planetary disks) since it provides informations on planetary systems it general.
08 Nov 2017 Spitzer DDT Proposal (Trilling et al.)
08 Nov 2017 Rotation period at least 5h. and axial ratio is at least 3:1 (Knight et al. 2017)
08 Nov 2017 Incoming direction RA, Dec=280.14,+34.15 (Mamajek 2017)
02 Nov 2017 Although detected by direct imaging inside the Solar System, its eccentricity larger than 1 (de la Fuente Marcos C. & R. 2017) makes it an intertsellar substellar object. Its perihelion is 0.25 AU.

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Star

Name
Sun
Distance
Spectral type
Apparent magnitude V
Mass
1.0 MSun
Age
Effective temperature
Radius
1.0 RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000
00:00:00.0
Dec2000
+00:00:00.0
Alternate Names

No remarks

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