An apsis (from Ancient Greek ἁψίς (hapsís) 'arch, vault'; pl. apsides /ˈæpsɪˌdiːz/ AP-sih-deez) is the farthest or nearest point in the orbit of a planetary...

from Latin absis, 'arch, vault'; from Ancient Greek ἀψίς, apsis, 'arch'; sometimes written apsis; pl.: apsides) is a semicircular recess covered with a hemispherical...

argument of periastron (for orbits around stars), and so on, may be used (see apsis for more information). An argument of periapsis of 0° means that the orbiting...

APSI (an abbreviation of "Agencia Publicitaria de Servicios Informativos") was a Chilean magazine aimed as means of political opposition to the Pinochet...

to be remarkable: a length of 58,5 metres on the inside, including the apsis, a width of 25 to 26 metres for the oblique north wall. Santa Maria del...

pointing into the direction of the vernal equinox). Apsidal precession Apsis Eccentricity (orbit) Orbit: circular, elliptic, parabolic and hyperbolic...

Name Launch Orbit Orbital apsis Inclination SCN COSPAR ID Launch site Launcher Status G60 Polar Group 01 × 18 6 August 2024 06:42 UTC Polar 813 km (505 mi)...

explained in 2011 that he based calculations on 90% of the difference in lunar apsis extremes for the solar year. In other words, a full or new moon is considered...

perspective in the Roman Emperor Constantine's Aula Palatina - Trier: The windows and the coffer in the apse are smaller, and the apsis has a raised floor....

Risebye's apsis decorations in Gedser Church (1925)...

Look up apse, apses, apsis, apside, apsides, or apsidal in Wiktionary, the free dictionary. The apse or apsis or apside (plural: apses or apsides) are...

Look up apogee in Wiktionary, the free dictionary. Apogee is a type of apsis: an extreme point in an object's orbit. Apogee may also refer to: Apogee...

Look up perigee in Wiktionary, the free dictionary. Perigee is a type of apsis: an extreme point in an object's orbit. Perigee may also refer to: Perigee:...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

3,233 days (8.85 years). It takes the Moon longer to return to the same apsis because it has moved ahead during one revolution. This longer period is...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

an anomaly of an elliptical orbit, generally measured with respect to an apsis, usually the periapsis Anomalous precession, another term for "apsidal precession"...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

published drawings in APSI in the 1980s. On one occasion picture of dictator Pinochet posing as Louis XIV led the whole staff of APSI to be imprisoned and...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

revolutions on its own axis every 4,320,000 earth years, an Epicycle of Apsis as 60 degrees, and had an apogee (aphelia) of 240 degrees in 499 CE; while...

Portion of the carvings of the choir apsis of the church at Königslutter...

completes 364,220 revolutions every 4,320,000 earth years, an Epicycle of Apsis as 32 degrees, and had an apogee (aphelia) of 160 degrees in 499 CE; while...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

Christus Pantokrator, apsis of the cathedral of Cefalù...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

Part of a series on Astrodynamics Orbital mechanics Orbital elements Apsis Argument of periapsis Eccentricity Inclination Mean anomaly Orbital nodes Semi-major...

January 2023). "Identification of late-type Class I stars using Gaia DR3 Apsis parameters". Astronomy & Astrophysics. 671: A148. arXiv:2301.07415. Bibcode:2023A&A...