HAT-P-34 is a star that is in the constellation Arrow at a distance of about 838 light years from us. At least one planet is drawn around the star.
HAT-P-34 | |||
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Star | |||
Observational data ( Epoch J2000.0 ) | |||
Type of | Single star | ||
Right ascension | |||
Declination | |||
Distance | 838.2 sv. years (257 pc ) [1] | ||
Visible magnitude ( V ) | 10,162 ± 0,073 [1] | ||
Constellation | Arrow | ||
Astrometry | |||
Absolute magnitude (V) | 3.32 ± 0.19 [1] | ||
Specifications | |||
Spectral class | FV [1] | ||
physical characteristics | |||
Weight | 1,392 ± 0,047 [1] M ☉ | ||
Radius | 1.535 [1] R ☉ | ||
Age | 1.7 billion [1] years | ||
Temperature | 6442 ± 88 [1] K | ||
Luminosity | 3.63 [1] L ☉ | ||
Metallicity | [Fe / H] = + 0.22 ± 0.04 [1] | ||
Rotation | 24.0 ± 0.5 km / s -1 [1] | ||
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Information in databases | |||
SIMBAD | data | ||
Sources: [3] | |||
Content
Characteristics
HAT-P-34 is a dwarf F class star. It is brighter, larger, and much younger than our Sun. Its mass and radius are 1.39 and 1.53 solar, respectively. [1] The star's luminosity is 3.63 times the solar one. Surface temperature is about 6442 Kelvin . The star's age is estimated at about 1.7 billion years.
Planetary system
In early 2012, a group of astronomers working under the HATNet project announced the discovery [1] of the planet HAT-P-34 b in the system. This is a typical hot jupiter , having a mass and radius equal to 3.33 and 1.2 Jupiter . The planet turns at a distance of 0.068 a. e. from the parent star, making a full turn in 5.45 days. The effective temperature of the planet is 1520 Kelvin . The discovery was made by the transit method .
Planet | Weight ( M J ) | Radius ( R j ) | Period of treatment ( days ) | Big axis orbits ( a. e ) | Eccentricity orbits |
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b | 3.33 ± 0.21 | 1.2 ± 0.13 | 5,453 | 0.068 ± 0.001 | 0,44 ± 0,03 |
Notes
- ↑ 1 2 3 4 5 6 7 8 9 10 11 12 13 G. Á. Bakos et al. HAT-P-34b - HAT-P-37b: Four Transition Planets More Massively Than Jupiter Orbiting Moderately Bright Stars (eng.) . Arxiv.org (Jan 3, 2012). The date of circulation is January 11, 2012. Archived September 8, 2012.
- ↑ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 SIMBAD Astronomical Database
- ↑ SIMBAD (English) . - HAT-P-34 in SIMBAD database . The appeal date is January 11, 2012.
See also
- Arrow Constellation Stars List