- An
apsis (from
Ancient Gr**** ἁψίς (hapsís) 'arch, vault'; pl. apsides /ˈæpsɪˌdiːz/ AP-sih-deez) is the ****hest or
nearest point in the
orbit of a planetary...
-
Orbital parameters Reference system
Cytherocentric Eccentricity 0.971
Pericytherion altitude 1,000–10,000 km (620–6,210 mi)
Apocytherion altitude 370,000 km...
-
Cytherocentric Semi-major axis 38,848
kilometres (24,139 mi)
Eccentricity 0.8211
Pericytherion altitude 7,081
kilometres (4,400 mi)
Apocytherion altitude 72,079 kilometres...
-
Orbital parameters Reference system
Cytherocentric Eccentricity 0.8798
Pericytherion altitude 1,620
kilometers (1,010 mi)
Apocytherion altitude 113,900 kilometers...
-
Cytherocentric Semi-major axis 33,405.8 km (20,757.4 mi)
Eccentricity 0.842
Pericytherion altitude 181.6 km (112.8 mi)
Apocytherion altitude 66,630 km (41,400 mi)...
- Reference system
Cytherocentric Semi-major axis 45,632.0
kilometres (28,354.4 mi)
Pericytherion altitude 7,081
kilometres (4,400 mi)
Apocytherion altitude 72,079 kilometres...
-
Cytherocentric Semi-major axis 10,470
kilometers (6,510 mi)
Eccentricity 0.39177
Pericytherion altitude 295
kilometers (183 mi)
Apocytherion altitude 7,762 kilometers...
- an
orbit around the Sun. The
apsides of an
Cytherocentric orbit are
pericytherion, the
pericenter (analogous to perigee), and the
apocenter is
named apocytherion...
- 1A
Orbital parameters Reference system
Cytherocentric Regime Polar Pericytherion altitude 300 km (190 mi)
Apocytherion altitude 500 km (310 mi) Inclination...
- June 2031 (planned)
Orbital parameters Reference system
Cytherocentric Pericytherion altitude 400 km (250 mi)
Period 1.6
hours Discovery program ← Psyche...
