ʻOumuamua

Frae Wikipedia
Jump to navigation Jump to search
A/2017 U1
Discovery[1]
Discovered bi Pan-STARRS
Designations
Interstellar
Orbital chairactereestics[2]
Epoch 2017-Oct-25 (JD 2458051.5)
Perihelion 0.2525 ± 0.00106 AU
Eccentricity 1.1922 ± 0.00268
26 km/s (58,000 mph)
(peakin at 87.8 km/s at perihelion)[n 1]
Inclination 122.422° ± 0.10°[n 2]
24.611 ± 0.0044
241.195 ± 0.19
Yird MOID 0.1000 AU
Jupiter MOID 1.463 AU
Pheesical chairacteristics
Dimensions ~160 meters (500 ft) (assumed)[3]
Spectral teep
(red)[4]
22.2

A/2017 U1 (previously C/2017 U1 (PANSTARRS)) is an apparently interstellar object passin throu the Solar Seestem.

Notes[eedit | eedit soorce]

  1. Comet C/2012 S1 (ISON) peaked at 377 km/s in perihelion acause it passed 0.0124 AU frae the Sun (20 times closer than 2017 U1).
  2. Relative tae the plane o the Solar Seestem's ecliptic. The nummer is greater nor 90, indicatin that it orbits in the opposite direction tae the ither planets at an inclination o 60 degrees.

References[eedit | eedit soorce]

  1. "MPEC 2017-U181: COMET C/2017 U1 (PANSTARRS)". Minor Planet Center. International Astronomical Union. 25 October 2017. Retrieved 25 October 2017.  (CK17U010)
  2. "Pseudo-MPEC for A/2017 U1". Bill Gray of Project Pluto. 26 October 2017. Retrieved 26 October 2017. 
  3. "Astronomers Spot First-Known Interstellar Comet". Sky & Telescope. Retrieved 25 October 2017. 
  4. Astronomer Alan Fitzsimmons w/ 4.2-m William Herschel Telescope