HD 49674 bDiscovery

Discovered by| Butler, Marcy,
Vogt et al.
Department of Astronomy,
601 Campbell Hall,
University of California, Berkeley,
California
Discovery site| exoplanets.org
Discovery date| June 13, 2002

Detection method

| Radial velocity
Orbital characteristics
Apastron| 0.0630 AU (9,420,000 km)
Periastron| 0.0530 AU (7,930,000 km)

Semi-major axis

| 0.0580 ± 0.0034 AU (8,680,000 ± 510,000 km)
Eccentricity| 0.087±0.095

Orbital period (sidereal)

| 4.94737±0.00098 d

Average orbital speed

| 128

Time of periastron

| 2,451,882.38±0.88

Argument of periastron

| 264
Semi-amplitude| 13.7±0.21
Star| HD 49674

HD 49674 b is an extrasolar planet[1] located approximately 134 light-years away in the constellation of Auriga, orbiting the star HD 49674. This planet was discovered orbiting the star in 2002. The planet is a gas giant and orbits extremely close to its star, which takes only 4.95 days to revolve.[2]

HD 49674 b, along with its parent star, was chosen as part of the 2019 NameExoWorlds campaign organised by the International Astronomical Union in which each country was assigned a star and planet to be named. The HD 49674 system was assigned to Belgium. The winning proposal named HD 49674 b Eburonia and the parent star Nervia, both after prominent Belgic tribes, the Eburones and Nervii respectively.[3]

## References[edit]

1. ^ Butler, R. Paul; et al. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal. 582 (1): 455–466. Bibcode:2003ApJ...582..455B. CiteSeerX 10.1.1.7.6988. doi:10.1086/344570.
2. ^ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.
3. ^ "Belgium". NameExoworlds. Retrieved 2019-12-22.

## External links[edit]

* "Notes for planet HD 49674 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-23.
* "HD 49674". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-23.
* Sky Map

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