- 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...
- Mercury's (0.4667 AU) and
perihelia inside Mercury's (0.3075 AU),
whereas those listed here as
outer grazers have
perihelia within Mercury's aphelion...
- The
scattered ETNOs (or
extreme scattered disc objects, ESDOs) have
perihelia around 38–45 AU and an
exceptionally high
eccentricity of more than 0...
- the
giant planets,
predominantly Neptune.
Detached objects have
larger perihelia than
these other TNO po****tions,
including the
objects in
orbital resonance...
-
objects of the same size
because they come
nearer to Earth, some
having perihelia around 20 AU.
Several are
known with g-band
absolute magnitude below 9...
-
steeply inclined (i ≈ 40°) orbit. Like
Planet Nine it
would cause the
perihelia of
objects with semi-major axes
greater than 300 AU to oscillate, delivering...
- that
orbit larger asteroids. Mercury-crossing
asteroids are
those with
perihelia within the
orbit of Mercury. At
least 362 are
known to date, and include...
-
eccentricities ranging as high as 0.8,
inclinations as high as 40°, and
perihelia greater than 30
astronomical units (4.5×109 km; 2.8×109 mi).
These extreme...
- have
contributed to the
formation of the Oort
cloud by
increasing the
perihelia (smallest
distances to the Sun) of
planetesimals with
large aphelia (largest...
- due to
their 2:3
resonance with the planet, the
classical objects have
perihelia further from the Sun, free from Neptune's perturbation. Such
objects have...
