HD 189733 AB

Star type
g A: K1.5 V
g B: M

Distance from Earth
g 62.48 ly

Star Service No.
g NA

Age
g A: More than 5 billion years old
g B: NA

Radius/Mass/Temp (xSol)
g A: 75%; 82%; 4939 K
g B: NA; NA; NA

Brightness (xSol)
g A: 26.4%
g B: NA

Metallicity
g A: 89%-102% as enriched in iron as Sol
g B: NA

Comparison to Sol
g A: NA
g B: NA

Picture of star
g A: NA
g B: NA

Star system features
g Star B orbits Star A in a clockwise orbit (which is nearly perpendicular to the orbital plane of transiting planet HD 189733 b) at about 216 AU once every 3,200 years

Known planets
g A: Planet b, with a mass of 113% Jupiter, orbits star every 2.21857 days at a distance of 0.03 AU. The planet’s temperature is about 1,832 F. Temperatures on the day and night sides of the world differ by about 500 degrees Fahrenheit, causing the strong winds to blow. Methane, carbon dioxide and significant amounts of water vapor exist in atmosphere. The nearness of the planet to the star causes the star to spin up, activating a strong magnetic dynamo of the star that produces the observed strong X-ray coronal emissions and large starspots. Its color is a deep cobalt blue. Raging storms of sidwways glass rain and 4350 mph winds encompass the planet. See illustrations of planet.
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: NA
g B: NA

View from stars
g See illustration at above right.

Nearby stars
(Star systems with 10 light years)
g NA

Map locating star system
g NA

Location in Earth sky
g In constellation Vulpecula; star can be found with binoculars 0.3 degrees east of the Dumbbell Nebula (M27)

Other names
g A: V452 Vul, HIP 98505, N1 1677, BD: +22° 3887, GJ 4130, LTT 15851, TYC 2141-972-1, AG+22 2072, GSC 02141-00972, USNO-B1.0 1127-00538857, ASCC 807144, NLTT 48568, uvby98 100189733, BD+22 3887, HIC 98505, PPM 110211, Wolf 864, EXO 195834+2234.6, SAO 88060, YZ 22 7419, GC 27741, LSPM J2000+2242, SKY# 37530
g B: 2MASS J20004297+2242342

Sci-fi mentions
g A: NA
g B: NA

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