Thursday, April 30, 2009

LTT 17736

Star type
g M V

Distance from Earth
g 44.7 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g NG 97-15

Sci-fi mentions
g NA

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Wednesday, April 29, 2009

L 113-55

Star type
g M4 Ve

Distance from Earth
g 44.7 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g Gl 398, G 44-27, LHS 2285

Sci-fi mentions
g NA

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Monday, April 27, 2009

Beta Aquilae AB

Star type
g A: G8 IV
g B: M3 V

Distance from Earth
g 44.7 ly

Star Service No.
g NA

Age
g A: Its subgiant status and that it is overly bright for its temperature show that it has stopped fusing hydrogen in its core, and with a dead helium core is preparing to become a much more luminous giant star; Sol will reach such a stage in about seven billion years, while Beta Aquilae A has a hydrogen-fusing lifetime only about 80% solar.
g B: NA

Radius/Mass/Temp (xSol)
g A: 300%; 130%; 5300 K
g B: NA; 33%; 3400 K

Brightness (xSol)
g A: 533%
g B: 2.5% (which is 10 times brighter than Proxima Centauri)

Metallicity
g A: NA
g B: NA

Comparison to Sol
g A: Magnetic field slightly stronger than that of the Sun, and displays some solar-like activity
g B: NA

Picture of star
g A: NA
g B: NA

Star system features
g Star B orbits Star a at 175 AU

Known planets
g A: Its motions have been examined for the effects of planets, but none have been found. Neither has any surrounding dust disk that might indicate a planetary system.
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: NA
g B: NA

View from stars
g A: Star B would shine only about as brightly as our quarter Moon as seen from Alshain A (or from some undetected close-in planet).

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

Map locating star system
g NA

Location in Earth sky
g In constellation Aquila

Other names
g A: Alshain
g B: NA

Sci-fi mentions
g A: In "Star Trek" universe, located in Federation space
g B: NA

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Sunday, April 26, 2009

BD+28 4704 AB

Star type
g A: K0 Ve
g B: NA

Distance from Earth
g 44.7 ly

Star Service No.
g NA

Age
g A: NA
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; NA; NA
g B: NA; NA; NA

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

Metallicity
g A: NA
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 NA

Known planets
g A: NA
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: NA
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Pegasus

Other names
g A: HR 8, Gl 5; HIP 544; HD 166
g B: NA

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

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Saturday, April 25, 2009

10 Tauri AB

Star type
g A: F8-9 IV-V

Distance from Earth
g 44.7 ly

Star Service No.
g NA

Age
g A: NA

Diameter/Mass/Temp (xSol)
g A: NA; 160%; NA

Brightness (xSol)
g A: 314%

Metallicity
g A: NA

Comparison to Sol
g A: NA

Picture of star
g A: NA

Star system features
g NA

Known planets
g A: NA

Habitable zone
g A: NA

Orbital map
g NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Taurus

Other names
g A: HR 1101

Sci-fi mentions
g A: NA

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Friday, April 24, 2009

G 265-8

Star type
g M V

Distance from Earth
g 44.6 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g GJ 1035, LHS 140

Sci-fi mentions
g NA

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Thursday, April 23, 2009

BD+62 780

Star type
g K7 V

Distance from Earth
g 44.6 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Camelopardalis

Other names
g Gl 215; HIP 27188; LHS 1782

Sci-fi mentions
g NA

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CP-60 6718

Star type
g K0-K2 V

Distance from Earth
g 44.6 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Ara

Other names
g Gl 656; HIP 83990; HD 154577; CD-60 6576; LHS 3268

Sci-fi mentions
g NA

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Tuesday, April 21, 2009

Wolf 1373

Star type
g M3 V

Distance from Earth
g 44.5 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g AC+22 308-605, LFT 1588, Gl 813, Hip 103441, G 187-9, LHS 3605

Sci-fi mentions
g NA

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Sunday, April 19, 2009

G 179-43 AB

Star type
g A: M V
g B: M V

Distance from Earth
g 44.5 ly

Star Service No.
g NA

Age
g A: NA
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; NA; NA
g B: NA; NA; NA

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

Metallicity
g A: NA
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 NA

Known planets
g A: NA
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: Stars A and B separated by about 68 AU
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g A: GJ 1194 A, LHS 402
g B: GJ 1194 B, LHS 403

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

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Saturday, April 18, 2009

L 258-146

Star type
g K0-M2.5 V

Distance from Earth
g 44.4 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In cosntellation Centaurus

Other names
g Gl 524; LTT 5327; YPC 3130.00

Sci-fi mentions
g NA

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Friday, April 17, 2009

HR 8501 AB

Star type
g A: G1 V
g B: M V

Distance from Earth
g 44.39 ly

Star Service No.
g NA

Age
g A: NA
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; NA; NA
g B: NA; NA; NA

Brightness (xSol)
g A: 112.7%
g B: 1.77%

Metallicity
g A: NA
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 NA

Known planets
g A: NA
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: NA
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g NA

Other names
g A: NA
g B: NA

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

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Wednesday, April 15, 2009

G 192-12 AB

Star type
g A: M1 V
g B: M V

Distance from Earth
g 44.3 ly

Star Service No.
g NA

Age
g A: NA
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; NA; NA
g B: NA; NA; NA

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

Metallicity
g A: NA
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 NA

Known planets
g A: NA
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: Stars A and B separated by about 2290 AU
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g A: Hip 28368
g B: NA

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

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Tuesday, April 14, 2009

G 204-39

Star type
g M V

Distance from Earth
g 44.2 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g Hip 87938, LHS 3343

Sci-fi mentions
g NA

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Monday, April 13, 2009

Wolf 414

Star type
g M3.5

Distance from Earth
g 44.2 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g Gl 469, Hip 60910, G 12-38, LHS 2565

Sci-fi mentions
g NA

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Sunday, April 12, 2009

BD+36 1970

Star type
g M0-M2 V

Distance from Earth
g 44.2 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g Gl 353, Hip 46769, G 116-36, LHS 2155, Vys 548

Sci-fi mentions
g NA

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Saturday, April 11, 2009

CD -30°19255

Star type
g K5eV

Distance from Earth
g 44.2 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g 12%

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Piscis Austrinus

Other names
g Gl 868; HIP 111960; HD 214749

Sci-fi mentions
g NA

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Friday, April 10, 2009

Ross 863

Star type
g M3 V

Distance from Earth
g 44.1 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g Gl 655, Hip 83762, G 170-17, LHS 5324

Sci-fi mentions
g NA

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Thursday, April 9, 2009

L 217-28

Star type
g M4 V

Distance from Earth
g 44.1 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g LTT 57, BPM 16015, Sm 154

Sci-fi mentions
g NA

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BD+20 802

Star type
g K3 V

Distance from Earth
g 44 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Taurus

Other names
g Gl 174; HIP 21818; HD 29697; G 8-51

Sci-fi mentions
g NA

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Tuesday, April 7, 2009

Theta Ursae Majoris AB

Star type
g A: F6 IV
g B: M V-VI

Distance from Earth
g 43.99 ly

Star Service No.
g NA

Age
g A: NA
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; 155%; NA
g B: NA; 12%; NA

Brightness (xSol)
g A: 854.7%
g B: 0.0478%

Metallicity
g A: NA
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 NA

Known planets
g A: NA
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: NA
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Ursa Major

Other names
g A: The UMa, HR 3775, Al Haud, Sarir, 25 Ursae Majoris, Gl 354, BD +52°1401, HD 82328, LHS 270, LTT 12519, GCTP 2266.00, SAO 27289, FK5 358, GC 13157, ADS 7420, CCDM 09329+5141, HIP 46853.


g B: NA

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

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Monday, April 6, 2009

Upsilon Andromedae AB

Star type
g A: F8 V
g B: M4.5 V

Distance from Earth
g 43.93 ly

Star Service No.
g NA

Age
g A: A bit younger than Sol
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; 120%; NA
g B: NA; 20% ; NA

Brightness (xSol)
g A: 365%
g B: NA

Metallicity
g A: NA
g B: NA

Comparison to Sol
g A: NA
g B: NA

Picture of star
g A: See artist's illustration at upper right; planet Ad is in the illustration's upper left corner (illustration courtesy of NASA, ESA, and A. Feild (STScI))
g B: NA

Star system features
g NA

Known planets
g A: Planet “Upsilon Andromedae Ab” is a hot Jupiter; it circles sun once every 4.6 days, is tidally locked; outer atmosphere is circulating much faster than interior atmosphere; temp difference between hot and cold sides is 2550 F. Two other Jupiter-type planets are farther out then “Ab”; their orbits are at a steep angle to each other. There are hints that a fourth planet, “Ae”, orbits the star much farther out.
g B: NA

Habitable zones
g A: The giant planets with wacky orbits likely affect any Earth-like planets in the same system. A smaller planet might fluctuate between being habitable and being inhospitable to life because of the forces exerted by the neighboring giant planets with eccentric orbits. These forces could cause the orbit of the smaller planet to repeatedly elongate and then become circular again in as little as 1,000 years, causing significant temperature variations. For part of the time, liquid water could exist on the surface, but at others it would boil off. For an Earth-like planet at the outer edge of its habitable zone, the alteration in orbit could take it too far from its star, leading to planetary glaciations. In addition, the smaller planet's geological properties likely would change over very long timescales, cycling in and out of intense volcanism and earthquake stages. Tidal forces also would fix the planet’s rotation period, and as the orbit becomes more elongated the length of day would change significantly - almost day to day.
g B: NA

Orbital map
g A: Orbits of two planets (Ac and Ad) are inclined by 30 degrees with respect to each other, which as of 2010 as not been seen in any other planetary system; see illustration at right for comparison of our solar system and the Upsilon Andromedae System in the polar view. (llustration courtesy of NASA, ESA, and A. Feild (STScI))
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Andromeda

Other names
g A: Ups And; HR 458
g B: NA

Sci-fi mentions
g A: Home system of the hostile alien species the Narrat in “Ace of Aces” novel by Chris Berman
g B: NA

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Saturday, April 4, 2009

Ross 370 AB

Star type
g A: M1.5 V
g B: M2 V

Distance from Earth
g 43.9 ly

Star Service No.
g NA

Age
g A: NA
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; NA; NA
g B: NA; NA; NA

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

Metallicity
g A: NA
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 NA

Known planets
g A: NA
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: NA
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g A: AC+57 22428, LFT 265, LTT 11063, CC 214, G 130.1 A, Hip 15220, G 174-41, LHS 1522, Vys 416
g B: AC+57 22429, LFT 266, G 130.1 B

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

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Friday, April 3, 2009

L 427-34 AB

Star type
g A: M6 V
g B: NA

Distance from Earth
g 43.8 ly

Star Service No.
g NA

Age
g A: NA
g B: NA

Diameter/Mass/Temp (xSol)
g A: NA; NA; NA
g B: NA; NA; NA

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

Metallicity
g A: NA
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 NA

Known planets
g A: NA
g B: NA

Habitable zones
g A: NA
g B: NA

Orbital map
g A: NA
g B: NA

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation NA

Other names
g A: LTT 8708, BPM 44196, Sm 89, Hip 107711
g B: NA

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

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Thursday, April 2, 2009

BD+63 229

Star type
g K5 V

Distance from Earth
g 43.8 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Cassiopeia

Other names
g Gl 69; HIP 8070; HD 10436; LHS 1291

Sci-fi mentions
g NA

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Wednesday, April 1, 2009

Gliese 777 ABC

Star type
g A: G8 IV-V
g B: M4 V
g C: M4.4-6 V

Distance from Earth
g 51.84 ly

Star Service No.
g NA

Age
g A: 12.11 Gyr
g B: NA
g C: NA

Radius/Mass/Temp (xSol)
g A: 120%; 90%-104%; 5588 K
g B: NA; NA; NA
g C: NA; NA; NA

Brightness (xSol)
g A: 144.4%
g B: 0.0393%
g C: NA

Metallicity
g A: NA
g B: NA
g C: NA

Comparison to Sol
g A: NA
g B: NA
g C: NA

Picture of star
g A: NA
g B: NA
g C: NA

Star system features
g NA

Known planets
g A: HD 190360 b is a 150.2% Jupiter that orbits its stars once very 2891 days at 3.92 AU. HD 190360 c is a 5.7% Jupiter that orbits its stars once every 17.1 days at 1.28 AU.
g B: NA
g C: NA

Habitable zones
g A: NA
g B: NA
g C: NA

Orbital map
g A: NA
g B: Orbits Star A
g C: Orbits Star A

View from stars
g NA

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

Map locating star system
g NA

Location in Earth sky
g NA

Other names
g A: HD 190360
g B: NA
g C: NA

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

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BD+53 1719

Star type
g K3 V

Distance from Earth
g 43.8 ly

Star Service No.
g NA

Age
g NA

Diameter/Mass/Temp (xSol)
g NA; NA; NA

Brightness (xSol)
g NA

Metallicity
g NA

Comparison to Sol
g NA

Picture of star
g NA

Star system features
g NA

Known planets
g NA

Habitable zone
g NA

Orbital map
g NA

View from star
g NA

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

Map locating star system
g NA

Location in Earth sky
g In constellation Bootes

Other names
g Gl 556; HIP 71181; HD 128165; G 200-49

Sci-fi mentions
g NA

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