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Mu Arae e
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>Mu Arae</td></tr><tr> <td colspan="2">Constellation</td> <td>Ara</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>17h 44m 08.7s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−51° 50′ 03″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>5.15</td></tr><tr><td colspan="2">Distance</td><td>50.6 ± 0.2 ly
(15.51 ± 0.07 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G3IV–V</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>1.10 ± 0.01 M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>1.36 ± 0.01 R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5820 ± 40 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.30 ± 0.01</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td>6.34 ± 0.40 Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>5.235[1] AU
(783.1 Gm)</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>4.719 AU
(705.9 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>5.750 AU
(860.3 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.0985 ± 0.0627[1]</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>4205.8 ± 758.9[1] d
(11.51 y)</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>57.6 ± 43.7[1]°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,450,541 ± 96[1] JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>18.1 ± 1.1[1] m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.814[1] MJ
(576 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>June 13, 2002</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Butler, Marcy</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>California, Template:Country data USA</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

Other designations
HD 160691 e

<tr style="background-color: #A0B0FF;"><td align=center colspan=3>Database references</td></tr><tr valign=baseline><td colspan=2>Extrasolar Planets
Encyclopaedia
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

Mu Arae e (also known as HD 160691 e) is one of the four extrasolar planets orbiting the star Mu Arae. Its discovery was announced on June 13, 2002. Mu Arae e is a gas giant at least 1.8 times as massive as Jupiter. The planet orbits at Jupiter-like distance at 5.235 AU.

ReferencesEdit

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Pepe, F.; Correia, A. C. M.; Mayor, M.; Tamuz, O.; Couetdic, J.; Benz, W.; Bertaux, J.-L.; Bouchy, F.; Laskar, J.; Lovis, C.; Naef, D.; Queloz, D.; Santos, N. C.; Sivan, J.-P.; Sosnowska, D.; Udry, S. (2007). The HARPS search for southern extra-solar planets. VIII. μ Arae, a system with four planets. Astronomy and Astrophysics 462 (2): 769–776.

Template:Mu Arae Coordinates: Sky map 17h 44m 08.7s, −51° 50′ 03″ Template:Nearest bright star systems


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