Hercules: Difference between revisions

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Lisa

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Revision as of 00:28, 17 March 2015 (view source) Lisa (talk \| contribs) (Created page with "Hercules is a constellation named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles. Hercules was one of the 48 constellations listed by the 2nd...")		Revision as of 00:30, 17 March 2015 (view source) Lisa (talk \| contribs) No edit summary Newer edit →
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	Fifteen stars in Hercules are known to be orbited by extrasolar planets.		Fifteen stars in Hercules are known to be orbited by extrasolar planets.

	~~14 Herculis has~~ two ~~planets. The planet 14 Herculis b had~~ the ~~longest period (4.9 years)~~ and ~~widest orbit (2~~.~~8 AU) at~~ the ~~time of discovery~~. ~~The planet 14 Herculis corbits much further out with very low eccentricity.HD 149026 has a transiting hot Jupiter planet~~ and is ~~one of the most prominent and studied.HD 154345 has~~ the ~~planet HD 154345 b,~~ a ~~long period (9~~.~~095 years) and wide orbit~~ (~~4.18 AU~~)~~.HD 164922 has the first long period Saturn-like planet discovered. The mass~~ is ~~0.36 MJ and semimajor axis~~ of 2.~~11 AU.HD 147506 has~~ the ~~most massive transiting planet HAT-P-2b at~~ the ~~time of discovery. The mass~~ is ~~8.65 MJ.HD 155358 has two planets around the lowest metallicity planet-harboring star (21% Sun). Both planets orbit~~ in mild eccentricities.GSC 03089-00929 has a short transiting planet TrES-3. The period was 31 hours and undergoing orbital decay.Gliese 649 has a saturnian planet around the red dwarf star.HD 156668 has a 4.~~15 Earth mass plan~~		Hercules contains two bright globular clusters: [[Messier 13]], the brightest globular cluster in the northern hemisphere, and [[Messier 92]]. It also contains the nearly spherical planetary nebula Abell 39. M13 lies between the stars η Her and ζ Her; it is dim, but may be detected by the unaided eye on a very clear night.The Hercules Cluster (Abell 2151) is a cluster of galaxies in Hercules.The Hercules–Corona Borealis Great Wall, the largest structure in the universe, is in Hercules.