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Exoplanet Records

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Exoplanetary Scratchpad

[SysBP Img]

Smallest Planet RecordsEdit

Temperature RecordsEdit

Star Size RecordsEdit

Smallest Star With Exoplanet RecordEdit

  • (2008) MOA-2007-BLG-192L System - A very dim Red Dwarf star (once thought to be a potential Brown Dwarf) around which the smallest known exoplanet around a normal star (1.4 ME, once thought to be 3.3 ME) orbits. Orbiting at Venus-like distances, the planet is likely an icy frozen super-Earth.
  • (2009) VB 10 System - BD+04°4048 is most commonly known as Gliese 752 and also called DM+04°4048. A nearby binary Red Dwarf star system in Aquila and the nearest star to Altair, which appears two order of magnitude than in our sky. Star A is also a flare star known as V1428 Aquilae and is also known as HD 180617. Its high proper motion was first noticed by Max Wolf in 1919, and dubbed Wolf 1055. It was later rediscovered by Frank Ross in 1927 and dubbed Ross 652. It has about half of the Sun's mass and radius and is the M3 V spectral standard star. Star B is also a UV Ceti variable star known as V1298 Aquilae and VB 10 or simply Van Biesbroeck's Star. It shares a proper motion with star A, but is not gravitationally bound with it and lies 434 AU away. VB 10 was the faintest star known when it was discovered in 1944 and is the M8 V spectral standard star. VB 10 contains a controversial "first" exoplanetary system announced in 2009 using astrometry and lies only 20 light years away, but not confirmed with dopplar spectrometry. Would be smallest known star to host a planet and is a flare star. Contain's a cold Jupiter six times Jupiter's mass a Mercury like distance. The "planet" and the star are about the same size and the planet contains 10% of the mass of the system. The star will burn for 10 trillion years, then the planet would fall into it, fuelling it for another 100 billion years. The system is about 1 Billion years old. Mnemonic is BD Aquilae.

Largest RecordsEdit

Largest Measured Radius RecordsEdit

  • Jupiter
  • HD 209458 System - Has first discovered transiting planet which was nicknamed Osiris due to the (first detected) comet-like tail detected and the first exoplanet around a normal star to have its mass directly measured. Also the first Inflated Hot Jupiter found. The planet may be losing its outer atmosphere, or magnetism may prevent the ions from escaping. They detected water in its atmosphere (they had failed earlier), the first time this has been done for any exoplanet. 2nd Exoplanet with detected organic compounds; like HD 189733b, it has water and carbon dioxide, but it has a lot more Methane. Was one of 2 planets to have light directly taken and thus their temperatures read (over 1000K). Tracking carbon molecules with dopplar spectrometry caused it to be the first exoplanet detected to have winds, which are raging at 5,000 to 10,000 km/h. This is believed to cause hotspots to appear at terminators rather than at the star-ward facing point. Had one of the strongest water detection of the 5 exoplanets contrasted by Hubble in 2013, though still less intense than expected, probably due to dust clouds or a haze blocking its detection.

Surface Gravity RecordsEdit

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