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There will be 230 lunar eclipses in the 21st century (2001–2100): 87 penumbral, 58 partial and 85 total. [1]Eclipses are listed in sets by lunar years, repeating every 12 months for each node.
This causes an eclipse season approximately every six months, in which a solar eclipse can occur at the new moon phase and a lunar eclipse can occur at the full moon phase. Because the orbit of the Moon is inclined only about 5.145° to the ecliptic and the Sun is always very near the ecliptic, eclipses always occur on or near it.
For example, the synodic period of the Moon's orbit as seen from Earth, relative to the Sun, is 29.5 mean solar days, since the Moon's phase and position relative to the Sun and Earth repeats after this period. This is longer than the sidereal period of its orbit around Earth, which is 27.3 mean solar days, owing to the motion of Earth around ...
February 4, 2013 16:05:34 Mars 26' south of Neptune 16.1° East February 6, 2013 20:41:22 Mercury 28' south of Neptune 13.9° East February 8, 2013 21:09:19 Mercury 18' north of Mars 15.1° East February 24, 2013 22:31:25 Mercury 4°15' north of Mars 11.6° East February 28, 2013 08:10:56 Venus 46' south of Neptune 6.8° West March 6, 2013
full moon: seen from Earth at perihelion maximum brightness of perigee + perihelion + full Moon (~0.267 lux; mean distance value is −12.74, [17] though values are about 0.18 magnitude brighter when including the opposition effect) −12.40: Betelgeuse (when supernova) seen from Earth when it goes supernova [36] −11.20: star Sun: seen from ...
The Apollo 8 mission carried out the first human trip to the Moon on 24 December 1968, certifying the Saturn V booster for crewed use and flying not a circumlunar loop but instead a full ten orbits around the Moon before returning safely to Earth. Apollo 10 then performed a full dress rehearsal of a crewed Moon landing in May 1969. This mission ...
Pluto's rotation period, its day, is equal to 6.387 Earth days. [ 3 ] [ 98 ] Like Uranus and 2 Pallas , Pluto rotates on its "side" in its orbital plane, with an axial tilt of 120°, and so its seasonal variation is extreme; at its solstices , one-fourth of its surface is in continuous daylight, whereas another fourth is in continuous darkness ...
Mars's average distance from the Sun is roughly 230 million km (143 million mi), and its orbital period is 687 (Earth) days. The solar day (or sol) on Mars is only slightly longer than an Earth day: 24 hours, 39 minutes, and 35.244 seconds. [185] A Martian year is equal to 1.8809 Earth years, or 1 year, 320 days, and 18.2 hours. [2]