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BD+04°4048 System

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Exoplanetary Scratchpad

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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.

BD+04°4048 System Web PagesEdit

BD+04°4048 System In the NewsEdit

First Exoplanet Discovered Using AstrometryEdit

Planet to Refuel Star in 10 Trillion Years (2009)Edit

Planet Not Confirmed by Dopplar Spectrometry (2009)Edit


See AlsoEdit

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