Loading…
Loading contentLoading…
Loading contentA hot Jupiter and the first exoplanet observed transiting its host star and to have its atmosphere detected.
exoplanet:hd-209458-bDataset membership
Open data
In the graph export: graph.json · graph.jsonld
Planned API: GET /api/v0/entities/exoplanet:hd-209458-b
Scientific entity. See the evidence framework and authority dashboard.
Asteria Scientific Review Process · verification: sourced · accurate
HD 209458 b was the first exoplanet observed to transit its host star (2000) and the first exoplanet with an atmosphere detected.
Source: NASA Exoplanet Science Institute (Caltech/IPAC) — NASA Exoplanet Archive · Freely available; acknowledgement requested
Reviewed by the internal Asteria Scientific Review Process — not an external institutional review. See the evidence framework and authority dashboard.
Real, source-backed references — primary papers first, then datasets and institutional sources. Formatted through the citation engine; nothing is fabricated.
David Charbonneau et al. · The Astrophysical Journal 529, L45 · 2000
The Astrophysical Journal · doi:10.1086/312457
David Charbonneau, Timothy M. Brown, David W. Latham, & Michel Mayor (2000). Detection of Planetary Transits Across a Sun-like Star. The Astrophysical Journal 529, L45. The Astrophysical Journal. https://doi.org/10.1086/312457
@misc{cite:charbonneau-2000,
title = {Detection of Planetary Transits Across a Sun-like Star},
author = {David Charbonneau and Timothy M. Brown and David W. Latham and Michel Mayor},
organization = {The Astrophysical Journal},
howpublished = {The Astrophysical Journal 529, L45},
year = {2000},
doi = {10.1086/312457},
url = {https://doi.org/10.1086/312457},
note = {First detection of an exoplanet transit (HD 209458 b).}
}NASA Exoplanet Science Institute (Caltech/IPAC)
NASA Exoplanet Science Institute (Caltech/IPAC) (n.d.). HD 209458 b — NASA Exoplanet Archive. NASA Exoplanet Science Institute (Caltech/IPAC). https://exoplanetarchive.ipac.caltech.edu/
@misc{cite:exoarchive-exoplanet-hd-209458-b,
title = {HD 209458 b — NASA Exoplanet Archive},
organization = {NASA Exoplanet Science Institute (Caltech/IPAC)},
year = {n.d.},
url = {https://exoplanetarchive.ipac.caltech.edu/},
note = {Confirmed parameters and discovery references for HD 209458 b.}
}How HD 209458 b connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
A Sun-like star in Pegasus whose planet HD 209458 b was the first exoplanet observed transiting its star.
Measuring the gravitational wobble a planet induces in its star.
The W. M. Keck Observatory is an astronomical observatory on Mauna Kea, Hawaii, operating two of the largest optical and infrared telescopes in the world.
The NASA Exoplanet Archive is the authoritative catalogue of confirmed exoplanets and their measured parameters.
Large planets dominated by hydrogen and helium, larger than about 5.5 Earth radii.
11 Com b is a gas giant orbiting 11 Com, discovered in 2007 by the radial velocity method.
11 UMi b is a gas giant orbiting 11 UMi, discovered in 2009 by the radial velocity method.
14 And b is a gas giant orbiting 14 And, discovered in 2008 by the radial velocity method.
14 Her b is a gas giant orbiting 14 Her, discovered in 2002 by the radial velocity method.
17 Sco b is a gas giant orbiting 17 Sco, discovered in 2020 by the radial velocity method.
18 Del b is a gas giant orbiting 18 Del, discovered in 2008 by the radial velocity method.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
European missions, observatories, and space science imagery.