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Lupus-TR-3b
Extrasolar planet List of extrasolar planets
300px
Size comparison of Lupus-TR-3b with Jupiter.
Parent star

<tr> <td colspan="2">Star</td> <td>Lupus-TR-3</td></tr><tr> <td colspan="2">Constellation</td> <td>Lupus</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>15h 30m 18.67s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−42° 58′ 41.5″</td></tr><tr><td colspan="2">Distance</td><td>8950 ly
(2744 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K1V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.0464 ± 0.0007 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>3.91405 ± 4e-5 d</td></tr><tr> <td>Inclination</td> <td style="text-align: center">(i)</td> <td>88.3+1.3-0.8°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2453887.0818 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>114 ± 25 m/s</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>0.81 ± 0.18 MJ</td></tr><tr><td>Radius</td><td style="text-align: center">(r)</td><td>0.89 ± 0.07 Template:Jupiter radius</td></tr><tr><td>Density</td><td style="text-align: center">(ρ)</td><td>1400 ± 400 kg m-3</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>November 12, 2007</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Weldrake et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Transit</td></tr><tr> <td colspan="2">Discovery site</td> <td>Siding Spring Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr> <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>


Lupus-TR-3b is an extrasolar planet orbiting the star Lupus-TR-3 (a K-type main sequence star approximately 8,950 light-years away in the constellation Lupus). The planet was discovered in 2007 by personnel from the Harvard-Smithsonian Center for Astrophysics observing at the Siding Spring Observatory in Australia, by the transit method.

The planet has four-fifths the mass of Jupiter, nine-tenths the radius, and has density of 1.4 g/cm³. This planet is a typical “Hot Jupiter” as it orbits at 0.0464 AU distance from the star, taking 3.9 days to orbit. It is currently the faintest ground-based detection of a transiting planet.[1]

See also Edit

References Edit

External links Edit

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Coordinates: Sky map 15h 30m 18.67s, −42° 58′ 41.5″


ru:Волка TR-3

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