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HAT-P-1b
Sign in to saveAlso known as NAME BD+37 4734Bb, HAT-P-1 b, TOI-1388.01, TOI-1388b, TIC 346338552b, TIC 346338552.01
HAT-P-1b is an extrasolar planet orbiting the Sun-like star HAT-P-1, also known as ADS 16402 B. HAT-P-1 is the dimmer component of the ADS 16402 binary star system. It is located roughly 521 light years away from Earth in the constellation Lacerta. HAT-P-1b is among the least dense of any of the known extrasolar planets.
Astronomical data · SIMBAD
- Object type
- Pl
- Distance
- 522 light-years
- Coordinates
- RA 344.4452° · Dec 38.6751°
via SIMBAD · CDS Strasbourg
Key facts
- Planet.name
- HAT-P-1 b
- Planet.image
- Exoplanet Comparison HAT-P-1 b.png
- Planet.caption
- Size comparison of HAT-P-1b with Jupiter.
- Planet.discoverer
- HATNet Project
- Planet.discovery_site
- Arizona and Hawaii
- Planet.discovered
- Thurs, Sept 14, 2006
- Planet.discovery_method
- Transit, radial velocity
- Planet.apsis
- astron
- Planet.eccentricity
- <0.067
- Planet.period
- 4.4652968 ± 0.0000018 d
- Planet.inclination
- 85.634 ± 0.056
- Planet.semi amplitude
- 59.3 ± 1.4
- Planet.star
- HAT-P-1 (ADS 16402 B)
- Planet.mean_radius
- 1.319 ± 0.019
- Planet.mass
- 0.529 ± 0.020
- Planet.single_temperature
- 1322 ± 15 K
via Wikipedia infobox
Wikidata facts
- Constellation
- Lacerta
- Radius
- 1.217
- Mass
- 0.525
- Orbital period
- 4.46529913
- Image
- Exoplanet Comparison HAT-P-1 b.png
Show 17 more facts
- Commons category
- HAT-P-1 b
- catalog code
- TIC 346338552.01
- epoch
- J2000.0
- discovery method
- transit method
- time of discovery or invention
- 2007-02-00
- right ascension
- 344.44518458957543
- declination
- 38.67509871797694
- orbital eccentricity
- 0.011
- semi-major axis of an orbit
- 0.05535
- argument of periapsis
- 253.1
- orbital inclination
- 85.63
- M sin i
- 0.53
- angular distance
- 0.000398
- temperature
- 1322.0
- right ascension component of proper motion
- 32.384
- declination component of proper motion
- -41.751
- parallax
- 6.2615
Sources (2)
via Wikidata · CC0
~4 min read
Encyclopedic overview
6 sectionsContents
- Discovery
- Orbit and mass
- Rotation
- Characteristics
- References
- External links
HAT-P-1b is an extrasolar planet orbiting the Sun-like star HAT-P-1, also known as ADS 16402 B. HAT-P-1 is the dimmer component of the ADS 16402 binary star system. It is located roughly 521 light years away from Earth in the constellation Lacerta. HAT-P-1b is among the least dense of any of the known extrasolar planets.
==Discovery== HAT-P-1b was detected by searching for astronomical transits of the parent star by orbiting planets. As the planet passes in front of its parent star (as seen from Earth), it blocks a small amount of the light reaching us from the star. HAT-P-1b was first detected by a dip of 0.6% in the light from the star. This enabled determination of the planet's radius and orbital period. The discovery was made by the HATNet Project (Hungarian Automated Telescope Network) using telescopes at the Fred Lawrence Whipple Observatory on Mount Hopkins in Arizona and at the Submillimeter Array facility in Hawaii. It was confirmed and the orbital parameters determined by radial velocity measurements made at the 8.2 m Subaru and 10 m Keck telescopes, the discovery announcement being made on September 14, 2006.
Excerpted from Wikipedia’s “HAT-P-1b” article, available under the CC BY-SA 4.0 licence.