| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Phoenix |
| Right ascension | 00h 24m 20s |
| Declination | -56° 39′ 00″ |
| Apparent magnitude (V) | 9. In Astronomy, an epoch is a moment in time used as a reference for the Orbital elements of a Celestial body. In Astronomy, an epoch is a moment in time used as a reference for the Orbital elements of a Celestial body. In common usage a constellation is a group of celestial bodies that are connected together in some arrangement typically stars to form a visible figure or picture Each culture has its own Constellations usually based on Mythology. Phoenix (ˈfiːnɪks is a minor southern Constellation, introduced by Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman, and popularized Right ascension (abbrev RA; symbol α) is the Astronomical term for one of the two Coordinates of a point on the Celestial sphere In Astronomy, declination (abbrev dec or δ) is one of the two coordinates of the Equatorial coordinate system, the other being either The apparent magnitude ( m) of a celestial body is a measure of its Brightness as seen by an observer on Earth, normalized to the value 01 |
| Distance | 292. The cosmic distance ladder (also known as the Extragalactic Distance Scale) is the succession of methods by which astronomers determine the Distances to celestial 9 ly (89. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by 8 pc) |
| Spectral type | G2/G3 IV-V |
| Other designations | |
HD 2039 is a yellow dwarf or yellow subgiant star in the constellation Phoenix. History The first direct measurements of an object at interstellar distances were undertaken by German Astronomer Friedrich Wilhelm Bessel in 1838 In Astronomy, stellar classification is a classification of Stars based initially on photospheric temperature and its associated Spectral characteristics A star catalogue, or star catalog, is an Astronomical catalogue that lists Stars In Astronomy, many stars are referred to simply by catalogue In Astronomy, Durchmusterung or Bonner Durchmusterung ( BD) is the usual name for three comprehensive astrometric Star catalogues The Hipparcos and Tycho Catalogues (Tycho-1 are the primary products of the European Space Agency 's astrometric mission Hipparcos. The Smithsonian Astrophysical Observatory Star Catalog is an astrometric Star catalogue. In Astronomy, a G V star is a Main-sequence Star of spectral type G and luminosity class V A star is a massive luminous ball of plasma. The nearest star to Earth is the Sun, which is the source of most of the Energy on Earth In common usage a constellation is a group of celestial bodies that are connected together in some arrangement typically stars to form a visible figure or picture Phoenix (ˈfiːnɪks is a minor southern Constellation, introduced by Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman, and popularized The magnitude is 9, meaning it can only be visible through small telescope or better equipment. The apparent magnitude ( m) of a celestial body is a measure of its Brightness as seen by an observer on Earth, normalized to the value A telescope is an instrument designed for the observation of remote objects and the collection of Electromagnetic radiation.
In 2002, a planet was found to be orbiting the star. See also 2002 (disambiguation Year 2002 ( MMII) was a Common year starting on Tuesday of the Gregorian calendar. An extrasolar planet, or exoplanet, is a Planet beyond the Solar System, orbiting around other Stars As of September 2008 312
Contents |
HD 2039 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 2. An extrasolar planet, or exoplanet, is a Planet beyond the Solar System, orbiting around other Stars As of September 2008 312 The following are lists of stars with confirmed Extrasolar planets. The elements of an orbit are the parameters needed to specify that Orbit uniquely given a model of two point-masses obeying the Newtonian laws of motion and the In Geometry, the semi-major axis (also semimajor axis) is used to describe the dimensions of ellipses and hyperbolae 19 ± 0. 2 AU |
| Eccentricity | (e) | 0. The astronomical unit ( AU or au or au or sometimes ua) is a unit of Length based on the distance from the Earth to the In Astrodynamics, under standard assumptions, any Orbit must be of Conic section shape 68 ± 0. 15 |
| Orbital period | (P) | 1192. The orbital period is the time taken for a given object to make one complete Orbit about another object 582 ± 150 d |
| Angular distance | (θ) | 24 mas |
| Longitude of periastron |
(ω) | 223° |
| Time of periastron | (T0) | 2449645. A day (symbol d is a unit of Time equivalent to 24 Hours and the duration of a single Rotation of planet Earth with respect to the In Mathematics (in particular Geometry and Trigonometry) and all Natural sciences (including astronomy geophysics etc the angular distance A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. In Astrodynamics, the longitude of the periapsis (symbolized \varpi of an orbiting body is the Longitude (measured from the point of the vernal equinox In Celestial mechanics, an apsis, plural apsides (ˈæpsɨdɪːz is the point of greatest or least distance of the Elliptical orbit of an object from In Celestial mechanics, an apsis, plural apsides (ˈæpsɨdɪːz is the point of greatest or least distance of the Elliptical orbit of an object from 48 ± 150 JD |
| Semi-amplitude | (K) | 153 ± 22 m/s |
| Physical characteristics | ||
| Mass | (m) | >4. The Julian date (JD is the interval of time in days and fractions of a day since 4713 B Amplitude is the magnitude of change in the oscillating variable with each Oscillation, within an oscillating system Mass is a fundamental concept in Physics, roughly corresponding to the Intuitive idea of how much Matter there is in an object 85 ± 1. 7 MJ |
| Discovery information | ||
| Discovery date | 2002 | |
| Discoverer(s) | Tinney, Butler, Marcy | |
| Detection method | Doppler Spectroscopy | |
| Discovery status | Published | |
HD 2039 b is an extrasolar planet orbiting the star HD 2039. Jupiter mass is the unit of Mass equal to one Jupiter (18986 × 1027 kg, 317 See also 2002 (disambiguation Year 2002 ( MMII) was a Common year starting on Tuesday of the Gregorian calendar. Any Planet is an extremely faint light source compared to its parent Star. Doppler spectroscopy, also known as Radial velocity measurement is a spectroscopic method for finding Extrasolar planets It involves the observation It is almost five times as massive as Jupiter and has a very eccentric orbit. In Mathematics, the eccentricity, denoted e or \varepsilon is a parameter associated with every conic section. In Physics, an orbit is the gravitationally curved path of one object around a point or another body for example the gravitational orbit of a planet around a star
See also
References
- Tinney et al. The following are lists of stars with confirmed Extrasolar planets. (2003). "Four New Planets Orbiting Metal-enriched Stars". The Astrophysical Journal 587 (1): 423 – 428. The Astrophysical Journal (abbreviated to ApJ or Astrophys J) is a Scientific journal covering Astronomy and Astrophysics. doi:. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document.
- Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505 – 522. The Astrophysical Journal (abbreviated to ApJ or Astrophys J) is a Scientific journal covering Astronomy and Astrophysics. doi:. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document. (web Preprint)
External links
- The Extrasolar Planets Encyclopaedia: HD 2039 + HD 2039 b
- Extrasolar Visions: HD 2039 + HD 2039 b
- SIMBAD: HD 2039 + HD 2039 b