 | Apsis (redirect from Periastron) (/æpˈhiːliən/); when discussing orbits around other stars the terms become periastron and apastron. When discussing a satellite of Earth, including the Moon... 42 KB (3,898 words) - 23:55, 26 April 2024 |
 | Argument of periapsis (redirect from Argument of Periastron) heliocentric orbits), argument of perigee (for geocentric orbits), argument of periastron (for orbits around stars), and so on, may be used (see apsis for more... 4 KB (560 words) - 04:06, 27 October 2023 |
 | orientation of periastron changes by about 4.2 degrees per year in direction of the orbital motion (relativistic precession of periastron). In January 1975... 11 KB (1,192 words) - 22:39, 16 March 2024 |
| Longitude of the periapsis (redirect from Longitude of periastron) In celestial mechanics, the longitude of the periapsis, also called longitude of the pericenter, of an orbiting body is the longitude (measured from the... 5 KB (606 words) - 17:43, 17 October 2023 |
determine four: semi-major axis, eccentricity, longitude of periastron, and time of periastron. Two parameters remain unknown: inclination and longitude... 55 KB (6,471 words) - 14:06, 23 March 2024 |
 | only around 250 R☉ at periastron. The accretion radius of the secondary is around 60 R☉, suggesting strong accretion near periastron leading to a collapse... 123 KB (14,800 words) - 23:53, 16 March 2024 |
 | Longitude of the node (Ω) 136.236 ±0.128° Periastron epoch (T) JD, TCB 2458177.39 ± 0.88 Argument of periastron (ω) (secondary) 77.34 ±0.76° Details Star... 6 KB (514 words) - 23:14, 25 April 2024 |
 | 67711 h Inclination 83.59 +0.47 −0.44 Time of periastron 2,449,999.83643 ± 0.0001 Argument of periastron 86.0 +30.7 −33.4 Semi-amplitude 6.02 +0.24 −0... 26 KB (2,538 words) - 21:24, 5 March 2024 |
 | energy, result in spiraling in, stably orbiting between apastron and periastron, or escaping to infinity. The location of the ISCO depends on the spin... 165 KB (18,702 words) - 01:43, 18 April 2024 |
 | orbits following the periastron epoch of 1894.13 gives a date of 1994.31. Two and one-half 50.09 year orbits following the periastron epoch of 1894.13 gives... 96 KB (10,056 words) - 10:47, 19 April 2024 |
 | Inclination (i) 115.1° Longitude of the node (Ω) 41.3° Periastron epoch (T) 2436785 Argument of periastron (ω) (secondary) 251.84° Orbit Primary α Geminorum... 23 KB (1,625 words) - 03:42, 31 January 2024 |
 | as it has an eccentricity of almost 0.52; their closest approach or periastron is 11.2 AU (1.68×10^9 km), or about the distance between the Sun and Saturn;... 113 KB (11,432 words) - 20:16, 20 April 2024 |
 | 126.6±0.4° Longitude of the node (Ω) 97.8±1.0° Periastron epoch (T) 2457387.9±0.7 Argument of periastron (ω) (secondary) 12.8±1.1° Details Sun-like star... 8 KB (581 words) - 08:06, 19 April 2024 |
 | the course of its year. The closest approach to its star is called its periastron, or perihelion in the Solar System, whereas its farthest separation from... 195 KB (20,575 words) - 05:22, 26 April 2024 |
 | 139.3±0.6° Longitude of the node (Ω) 83.8±0.8° Periastron epoch (T) JD 2452734.2±9.0 Argument of periastron (ω) (secondary) 204.2±1.2° Semi-amplitude (K1)... 14 KB (1,322 words) - 23:58, 13 April 2024 |
 | Orbital period (sidereal) 12.919+0.003 −0.002 d Time of periastron 2454759.2 ± 0.1 Argument of periastron 148.7°+71.5° −33.0° Semi-amplitude 3.28+0.22 −0.12 m/s... 36 KB (3,764 words) - 03:35, 25 March 2024 |
 | complex type of orbit. In astronomy, a Rosetta orbit occurs when there is a periastron shift during each orbital cycle. A retrograde Newtonian shift can occur... 3 KB (321 words) - 13:49, 6 July 2023 |
9±0.4° Longitude of the node (Ω) 240.21±0.28° Periastron epoch (T) 2015/09/16+23−28 Argument of periastron (ω) (secondary) 1±5° Details Red dwarf Mass 0... 14 KB (1,166 words) - 15:59, 19 February 2024 |
 | 87±0.34° Longitude of the node (Ω) 266.9±0.5° Periastron epoch (T) 2457438.3±1.4 Argument of periastron (ω) (secondary) 130.9±0.4° Semi-amplitude (K1)... 6 KB (507 words) - 07:46, 19 April 2024 |
 | 1088/0004-637X/743/2/200. S2CID 42698813. Pál, A.; Kocsis, B. (2008). "Periastron Precession Measurements in Transiting Extrasolar Planetary Systems at... 146 KB (15,828 words) - 18:56, 20 April 2024 |
 | eccentricity of 0.5±0.08; it approaches Alpha Centauri to 4300+1100 −900 AU at periastron and retreats to 13000+300 −100 AU at apastron. At present, Proxima Centauri... 101 KB (10,193 words) - 23:43, 18 April 2024 |
 | DI Herculis (section Precession of periastron) astronomical units, resulting in an extremely close approach of the two stars at periastron. Stellar masses of 5.15 and 4.52 solar masses lead to a theoretical precession... 9 KB (871 words) - 08:15, 11 May 2023 |
 | A. T.; Gandet, T. L.; Eversberg, T.; Reinecke, N. (2013). "THE 2011 PERIASTRON PASSAGE OF THE Be BINARY δ Scorpii". The Astrophysical Journal. 766 (2):... 17 KB (1,333 words) - 17:13, 3 February 2024 |
 | apastron where the planet is coolest and become active on approach to the periastron when the planet is sufficiently warm. A 2015 review concluded that the... 134 KB (13,621 words) - 17:05, 13 April 2024 |
distinguished it from the so-called periastron effect described by earlier authors, as it does not necessarily appear near the periastron, when tidal effects and... 5 KB (558 words) - 07:24, 13 August 2023 |
Inclination (i) 72.76° Longitude of the node (Ω) 122.61° Periastron epoch (T) 2003.33 Argument of periastron (ω) (secondary) 42.62° Details Mass 6.1 M☉ Database... 5 KB (372 words) - 13:27, 2 February 2024 |
 | Pseudo-synchronous rotation – a near synchronization of revolution and rotation at periastron Roche limit – Orbital radius that will break up a satellite Synchronous... 47 KB (5,074 words) - 18:11, 26 April 2024 |
 | (sidereal) 289.863876±0.000013 d Inclination 89.764°+0.025° −0.042° Time of periastron 2454966.7001±0.0068 Semi-amplitude <1.6 m/s Star Kepler-22 (KOI-087) Physical... 19 KB (1,843 words) - 13:21, 5 April 2024 |
 | 046° Longitude of the node (Ω) 40.522±0.039° Periastron epoch (T) 2,448,147.6±2.6 JD Argument of periastron (ω) (primary) 342.6±9.0 JD° Semi-amplitude (K1)... 71 KB (7,622 words) - 11:46, 15 March 2024 |
 | 111–171 Longitude of ascending node 8–173 Time of periastron 2005.07–2825.03 Argument of periastron 4–176 Star 59 Virginis (GJ 504) Physical characteristics... 9 KB (775 words) - 01:43, 10 April 2024 |