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At a distance of about 444 light-years, it is among the nearest star clusters to Earth and the nearest Messier object to Earth, being the most obvious star cluster to the naked eye in the night sky. It is also observed to house the reflection nebula NGC 1432 , an HII region . [ 10 ]
Its diameter is eleven times that of Earth, and a tenth that of the Sun. Jupiter orbits the Sun at a distance of 5.20 AU (778.5 Gm), with an orbital period of 11.86 years. It is the third-brightest natural object in the Earth's night sky , after the Moon and Venus , and has been observed since prehistoric times .
The planets are, in order of distance from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. There are three main belts of minor bodies: The asteroid belt, between Mars and Jupiter. The Kuiper belt beyond Neptune, followed by the scattered disc. The Oort cloud in the boundaries of the Solar System.
an object of diameter 1 AU (149 597 871 km) at a distance of 1 parsec (pc) Thus, the angular diameter of Earth's orbit around the Sun as viewed from a distance of 1 pc is 2″, as 1 AU is the mean radius of Earth's orbit. The angular diameter of the Sun, from a distance of one light-year, is 0.03″, and that of Earth 0.0003″. The angular ...
It is positioned at a distance of approximately 65 light-years from the Sun. The star lies along the line of sight to the nearby Hyades cluster . Aldebaran is a red giant , meaning that it is cooler than the Sun with a surface temperature of 3,900 K , but its radius is about 45 times the Sun's , so it is over 400 times as luminous .
Distance Name Mass Type Notes 2022— 1,600 ly (1.5 × 10 16 km; 9.4 × 10 15 mi) Gaia BH1: 9.62 solar masses (1.913 × 10 31 kg; 4.22 × 10 31 lb) Main-sequence star with dormant compact mass binary First dormant black hole discovered, first Sun-like star in black hole binary system discovered: First detected via positional shifts of visible ...
Angle distance Planet Elongation to Sun January 18, 2009 06:19:19 Mercury 3°15' north of Jupiter 4.7° East January 23, 2009 15:34:10 Venus 1°24' north of Uranus 46.3° East January 26, 2009 18:23:39 Mercury 4°25' north of Mars 13.5° West February 17, 2009 09:35:27 Mars 35' south of Jupiter 18.8° West February 24, 2009 03:08:31 Mercury
The distance of the firmament from the Earth is a journey of 500 years, a distance equivalent to the diameter of the firmament, through which the Sun must saw its way in order to become visible. [20] The firmament, according to some, consists of fire and water, and, according to others, of water only, while the stars consist of fire. [21]