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- ...The star motif marks the position of its host star; whose light is blocked by a [[coronagraph]]. ...found in 2002 when measurements of the [[radial velocity]] of Epsilon Indi by Endl et al. appeared to show a trend that indicated a planetary companion w ...16 KB (2,242 words) - 00:34, 13 February 2025
- ...hat Neptune's orbit would look like around the star HIP 65426, represented by a small cross. | discovery_method = [[Methods of detecting exoplanets#Direct imaging|Direct imaging]] ...12 KB (1,655 words) - 23:55, 15 February 2025
- |footer=''Left:'' A representation of a star orbited by a planet. All the movement of the star is along the viewer's line-of-sight; ...determined using the [[binary mass function]]. This method reveals planets by measuring changes in the movement of stars in the [[Line-of-sight propagati ...12 KB (1,694 words) - 17:58, 2 November 2024
- {{Starbox astrometry Planetary candidates were detected around the star by [[NASA]]'s [[Kepler Mission]], a mission tasked with discovering planets in ...12 KB (1,721 words) - 23:38, 15 July 2024
- {{Starbox astrometry ...belongs to the [[Tucana-Horologium association]]. The binary is separated by around 12 [[astronomical unit]]s (AU).<ref name="Delorme2013"/> In 2014 Rie ...14 KB (1,987 words) - 07:50, 5 October 2024
- {{Starbox astrometry ...ptstyle M_{V_{\odot}}=4.83</math>, the visual luminosity can be calculated by <math>\scriptstyle \frac{L_{V_{\ast}}}{L_{V_{\odot}}}=10^{0.4\left(M_{V_{\o ...19 KB (2,346 words) - 03:10, 14 October 2024
- {{Short description|Exoplanets confirmed or discovered from direct imaging}} [[File:HR 8799 Orbiting Exoplanets.gif|thumb|right|Motion interpolation of seven images of the [[HR 8799]] sys ...69 KB (8,893 words) - 23:57, 2 February 2025
- {{Starbox astrometry ...e only two objects announced in the discovery paper). The system was found by comparing WISE images at different [[Epoch (astronomy)|epoch]]s to reveal o ...43 KB (6,000 words) - 06:40, 6 February 2025
- ...[[brown dwarfs]] which are the least voluminous known (the smallest stars by volume). ...explodes in a supernova at the end of its life. They are usually produced by stars of less than 20 solar masses, although a more massive star may produc ...149 KB (20,469 words) - 03:47, 17 February 2025
- ...06-0203 Voyager 58M to 31M reduced.gif|thumb|251x251px|[[Jupiter]] as seen by ''[[Voyager 1]]'' in 1979. It is the largest [[planet]] having its surface ...st [[exoplanet]]s''' so far discovered, in terms of physical size, ordered by radius. ...255 KB (33,949 words) - 15:38, 2 March 2025
- {{Starbox astrometry ...n <math>M_{V_\odot} = 4.83</math>, the visual luminosity can be calculated by <math>\tfrac{L_{V_\ast}}{L_{V_\odot}} = 10^{0.4(M_{V_\odot} - M_{V_\ast})}. ...187 KB (25,955 words) - 17:28, 25 February 2025
- ...the [[Doppler effect]]. The transverse, or [[proper motion]] must be found by taking a series of positional determinations against more distant objects. ...0.5) km/s. (Note that V is 7 km/s larger than estimated in 1998 by Dehnen et al.<ref name=mnras298>{{cite journal ...61 KB (8,592 words) - 01:54, 20 January 2025
- {{Distinguish||text=the [[Planet X]] proposed in 1906 by [[Percival Lowell]]}} ...j2025/>{{efn-ua|As of 2024 the semi-major axis of Planet Nine is estimated by Siraj, Chyba and Tremaine to be 290 AU, with a margin or error of {{±|30}} ...184 KB (25,307 words) - 08:37, 1 March 2025