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2015 RY245

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Last Updated: 18 January 2022

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2015 RY245

Discovered byOSSOS
Discovery siteMauna Kea Obs.
Discovery date9 September 2015
Designations
MPC designation2015 RY 245
Alternative designationso5s13
Minor planet categoryTNO SDO
Orbital characteristics
Epoch4 September 2017 ( JD 2458000.5)
Uncertainty parameter5
Observation arc1.47 yr (538 days)
Aphelion411.25 AU
Perihelion31.276 AU
Semi-major axis221.26 AU
Eccentricity0.8586
Orbital period3291.32 yr (1,202,155 days)
Mean anomaly1.6973
Mean motion0 0 m 1.08 s / day
Inclination6.0347
Longitude of ascending node341.55
Argument of perihelion354.30
Physical characteristics
Dimensions78 km
Apparent magnitude24.6
Absolute magnitude (H)9.0683

Because this planet is thought to be tidally locked to its star, meaning same face of planet is always pointed at star, there would be region called terminator that perpetually divides day and night. If night side is icy, day side might give way to liquid water in area where sufficient starlight hits surface. One of unusual features of TRAPPIST-1 Planets is how close they are to each other-so close that other Planets could be visible in sky from surface of each one. In this view, planets in sky correspond to TRAPPIST1e, d and c. TRAPPIST-1e would appear about same size as moon and TRAPPIST1-c is on far side of star. Star itself, ultra-cool dwarf, would appear about three times larger than our own sun does Earth's skies. TRAPPIST-1 System Has Been Revealed Through Observations From NASA's Spitzer Space Telescope And Ground-base TRAPPIST Telescope, As Well As Other Ground-base Observatories. System Was Named For TRAPPIST Telescope. NASA's Jet Propulsion Laboratory, Pasadena, California, manages Spitzer Space Telescope Mission for NASA's Science Mission Directorate, Washington. Science operations are conducted at Spitzer Science Center Caltech, also in Pasadena. Spacecraft operations are based at Martin Space Systems Company, Littleton, Colorado. Data Are Archive At Infrared Science Archive House At Caltech / IPAC. Caltech manages JPL for NASA.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Sources

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

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