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Exoplanetary Scratchpad

[SysBP Img]

Ogma (HD 149026) is a yellow sub-giant star with the first known Saturn mass transiting planet, Smertrios. Also the first planet found with a dense core, leading credence to the core-accretion theory. Sometimes called a Super-Neptune, though it is not known if its core is rocky or icy. Also the first TEP discovered smaller than Jupiter. It was revealed to be as black as coal, twice as hot as any other known exoplanet, and hotter than some stars. One of the first 20 exoplanet systems allowed to be given common names by the IAU. The star is named after a Celtic god of eloquence, writing, and great physical strength, while the planet was named after a Gallic deity of war.

My Thoughts[]

It was discovered by the N2K Consortium, which is a collaboration between American, Chilean, and Japanese astronomers. It's super massive and small and dense. It is in the constellation Hercules. I'm going to pick Yamatotakeru and his sword Kusanagi, a mythical Japanese figure. This is one case where I wouldn't mind seeing a Japanese wrestler either (Jiyaiantobaba/Jumbotsuruta). There's also an interesting Celtic Hercules like figure Ogmios/Smertrios too.

HD 149026 System Web Pages[]

HD 149026 System In the News[]

Discovered with Dopplar Spectrometry (Jul 2004)[]

Transit Detected, Found to Be Smallest Transiting Exoplanet (May 2005)[]

Thermal Emissions Detected, Hottest Exoplanet (Jan 2005)[]

Found to Have a Large Dense Core (Jul 2005)[]

A Saturn sized planet with a large dense core is discovered, gives credance to the core-accretion theory.

Planet detected by Amateur Astronomers (Jul 2005)[]

The day before the planet was announced, amateur astronomers detected its presense, becoming the third transiting planet detected by amateurs.

Interior Modelled (2006)[]

Found to be Black As Coal and Hottest Exoplanet (May 2007)[]

More Precise Radius Measured (2008)=[]

Growth Could Be Explained With Core Accretion (2009)[]

One of the Top 20 Exoplanetary Systems First Up For Naming (May 2015)[]

See Also[]

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