Search results
Results from the WOW.Com Content Network
Thus, the Sun occupies 0.00001% (1 part in 10 7) of the volume of a sphere with a radius the size of Earth's orbit, whereas Earth's volume is roughly 1 millionth (10 −6) that of the Sun. Jupiter, the largest planet, is 5.2 AU from the Sun and has a radius of 71,000 km (0.00047 AU; 44,000 mi), whereas the most distant planet, Neptune, is 30 AU ...
Lowest Highest Lowest Highest Lowest Highest Star: 617.7 km/s Sun [11] 332,830 M Earth Sun [26] [27] 695,000 km Sun [27] Major planet: 4.3 k m/s Mercury [18] 59.5 km/s Jupiter [18] 0.055 M Earth Mercury [28] 318 M Earth Jupiter [26] 2500 km Mercury [29] 69911 k m Jupiter [28] Dwarf planet: ≈0.43 k m/s Orcus: 1.3 km/s Eris: 0.0000916 M Earth ...
Similarly, when the Sun is at the highest point on the analemma, near its top-left end, (on 15 June) the earliest sunrise of the year will occur. Likewise, at sunset, the earliest sunset will occur when the Sun is at its lowest point on the analemma when it is close to the western horizon, and the latest sunset when it is at the highest point.
Viewed from Earth as it orbits the Sun, the apparent rotational period of the Sun at its equator is about 28 days. [47] Viewed from a vantage point above its north pole, the Sun rotates counterclockwise around its axis of spin. [d] [48] A survey of solar analogs suggest the early Sun was rotating up to ten times faster than it does today. This ...
Solar System – gravitationally bound system comprising the Sun and the objects that orbit it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets (including Earth), with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies.
The Carrington heliographic coordinate system, established by Richard C. Carrington in 1863, rotates with the Sun at a fixed rate based on the observed rotation of low-latitude sunspots. It rotates with a sidereal period of exactly 25.38 days, which corresponds to a mean synodic period of 27.2753 days.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The term zenith sometimes means the highest point, way, or level reached by a celestial body on its daily apparent path around a given point of observation. [4] This sense of the word is often used to describe the position of the Sun ("The sun reached its zenith..."), but to an astronomer, the Sun does not have its own zenith and is at the ...