which is the eighth planet from the sun ( in order of increasing mean distance or semimajor axis )
Neptune
Neptune Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. Neptune orbits the Sun once every 164.8 years at an average distance of . It is named after the Roman god of the sea and has the astronomical symbol ♆, a stylised version of the
Neptune
least nine times the mass of the Earth, and so may be a Neptune-like planet. But until astronomers can determine the orbital inclination or directly image the planet, there is no way to know for certain its actual mass. The second companion, HD 96700 c, is orbiting at roughly the same distance as Mercury from the Sun, with a semimajor axis of 0.42 AU and a period of around 103 days. It may have a relatively high eccentricity of 0.4. This object has at least 13 times the mass of the Earth. HD 96700 HD 96700 is the "Henry Draper
HD 96700
just four times the star's radius. The second planet, HD 3167 c, has an orbital period of 29.8454 days and an eccentricity of less than 0.267. The semimajor axis is . It has and , giving it a low bulk density of . This suggests either a mini-Neptune with a gaseous envelope consisting mainly of hydrogen and helium, or a planet consisting of mostly water. The incident flux from the host star is around 16 times the amount the Earth receives from the Sun, and it is less susceptible to atmospheric stripping than HD 3167 b. The proximity of the
HD 3167
Distant minor planet A distant minor planet, or "distant object", is any minor planet found beyond Jupiter in the outer Solar System that is not commonly thought of as an "asteroid". The umbrella term is used by IAU's Minor Planet Center (MPC), which is responsible for the identification, designation and orbit computation of these objects. , the MPC maintains 3497 distant objects in its data base. Most distant minor planets are trans-Neptunian objects and centaurs, while relatively few are damocloids, Neptune trojans or Uranus trojans. All distant objects have a semi-major axis (average distance from the Sun) greater than 6
Distant minor planet
and proposed a possible orbit for the planet. This hypothesis could also explain TNOs with orbits perpendicular to the inner planets and others with extreme inclinations, as well as the tilt of the Sun's axis. Planet Nine is hypothesized to follow a highly elliptical orbit around the Sun with a period lasting 10,000–20,000 years. The planet's semi-major axis is estimated to be , roughly 20 times the distance from Neptune to the Sun, and its inclination to the ecliptic, the plane of the Solar System, to be about . The high eccentricity of Planet Nine's orbit could bring it as
Planet Nine
planet Neptune as perceived with the naked eye, which has an apparent magnitude of 7.78 at its brightest. The star's actual brightness is measured with an absolute magnitude of 4.12, similar to that of the Sun. HD 154672 b is a Hot Jupiter, as it is a closely orbiting planet with a high mass. Specifically, HD 154672 has a mass that is 5.02 times greater than Jupiter's mass. It also orbits at a distance of 0.6 AU, or about 60% of the mean distance between the Earth and Sun. This orbit is completed every 163.91 days. HD 154672 b has
HD 154672
orbital period of 91.2 years and an eccentricity of 0.48. The semimajor axis is 0.73 arc seconds − roughly the distance from the Sun to Neptune − and the inclination of the orbital plane is 94.5°. Both components are main sequence stars: the visual magnitude 4.04 primary has a stellar classification of B9 V, while the secondary is of class A3 V and magnitude 5.60. In 1969, γ Coronae Borealis was confirmed to be variable with an amplitude of 0.05 magnitudes. A year later, it was "confirmed" to be a δ Scuti variable with the earliest known spectral type in
Gamma Coronae Borealis
Neptune Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. Neptune orbits the Sun once every 164.8 years at an average distance of . It is named after the Roman god of the sea and has the astronomical symbol ♆, a stylised version of the
Neptune
Planet Nine) based on a statistical clustering of the arguments of perihelia (noted before) near zero and also ascending nodes near 113° of six distant trans-Neptunian objects. They estimated it to be ten times the mass of Earth (about 60% the mass of Neptune) with a semimajor axis of approximately 400–1500 AU. Even without gravitational evidence, Mike Brown, the discoverer of Sedna, has argued that Sedna's 12,000-year orbit means that probability alone suggests that an Earth-sized object exists beyond Neptune. Sedna's orbit is so eccentric that it spends only a small fraction of its orbital period near the Sun, where
Planets beyond Neptune
Sun) of 39.1 AU is about the same as Pluto's semi-major axis (average distance from the Sun). It is classified as a scattered disc object. Given the long orbit that TNOs have around the Sun, comes to opposition in late October of each year at an apparent magnitude of 20.5. Both the Minor Planet Center (MPC) and the Deep Ecliptic Survey (DES) show this probable dwarf planet to be in a 2:5 resonance with Neptune. Due to the resonance, it completes two orbits for every five orbits of Neptune. As of 2009, it is the largest likely dwarf planet that
(84522) 2002 TC302
rushing rivulet into a series of broad pools and mucky wetlands linked by shallow, multiply branched channels. Indians regarded them as a fine thing…"With the demise of the beaver came a major alteration of the Western landscape. The beaver ("Castor Canadensis") is one of the few animals with the capacity to reshape its environment significantly; because of its engineering talents and sociability, the Apaches believed the beaver to be the wisest of all creatures…Thousands of [beaver lodges] once dotted the Gila, forming reservoirs that helped control seasonal flooding and provide wetlands for migrating birds. The wholesale destruction of the beaver
Ciénega
long and cross the bay at a height of 60 metres. The northern viaduct (foreland bridge) will be 1097 meters long, approximately S-shaped and will be connected to the Praça 16 de Junho roundabout (connected to the EN1/EN2/EN4 highways) in the Maputo neigborhood of Malanga. The southern viaduct will be 1264 meters long and consist of precast elements. It is directly connected to the road to Ponta do Ouro. Originally, pylons were also planned in the bay itself, but they were removed after a change of plan so as not to unnecessarily obstruct shipping traffic. A span of 680 metres
Maputo–Katembe bridge
Residence at 2956 Riverside Avenue. J. H. W. Hawkins J.H.W. Hawkins (died ca. 1920) was a New York architect who moved to Jacksonville, Florida after the city's Great Fire of 1901. He designed homes for Alexander Sabel, J.E. Cohen, Senator J.P. Taliaferro, W.S. Ware, and Samuel B. Hubbard. Hawkins designed the Herkimer Block at 136 East Bay Street in Downtown Jacksonville as well as the original Guaranty Trust & Savings Bank at101 East Bay Street. He also designed the Snyder Memorial Methodist Church at 226 North Laura Street, a Dutch Colonial Revival house at 1662 Stockton Street known as A.V.S.
J. H. W. Hawkins
1967, in 1974, and again in the early 1980s, Kenya asked for them to be released, but the UK refused. Ben Macintyre of the "Times" summarised the procedure for declassifying Foreign Office archival material as follows: In 2005, two Freedom of Information (FoI) requests were submitted to the FCO by researchers wanting Mau Mau-era government files. The second request was very specific, and did not warrant checking the migrated archives, but the first request should have warranted such a check, yet none was made. More seriously still, in 2006, lawyers for Leigh Day, the legal firm representing former Mau Mau
Foreign and Commonwealth Office migrated archives
by Ida, an island girl. When Kennedy is distraught that he cannot pay for the operation due to his money being lost when his ship went down, Ida obtains a valuable black pearl that sets scheming in motion on the island paradise. Paradise Isle Paradise Isle is a 1937 American film directed by Arthur Greville Collins with sequences shot in American Samoa. The film was produced by Dorothy Davenport under the name "Dorothy Reid" and was released by Monogram Pictures. The film stars Mexican actress Movita Castaneda continuing her persona of a South Seas Island girl that began with "Mutiny
Paradise Isle
period is longer than that of Mercury around the Sun, the lower mass of the host star relative to the Sun means the planet's orbit has a slightly smaller semimajor axis. Unlike Mercury, Gliese 876 e has a nearly circular orbit with an eccentricity of 0.055 ± 0.012. This planet, like b and c, has likely migrated inward. Gliese 876 e Gliese 876 e is an exoplanet orbiting the star Gliese 876 in the constellation of Aquarius. It is in a 1:2:4 Laplace resonance with the planets Gliese 876 c and Gliese 876 b: for each orbit of planet e,
Gliese 876 e
This ancient star has a stellar classification of G2 V, matching a G-type main-sequence star. It has 78% of the mass of the Sun and is radiating 80% of the Sun's luminosity from its photosphere at an effective temperature of 5,709 K. Formerly an IAU radial velocity standard, this star was found to have a variable radial velocity due to a suspected orbiting companion. The value for the unseen object is , where "a" is the semimajor axis and "i" is the orbital inclination – providing a lower bound for the semimajor axis. The secondary object most likely has a
HD 29587
is considered during the final portion of the trajectory where Mars's gravity dominates the spacecraft's behaviour. The spacecraft would approach Mars on a hyperbolic orbit, and a final retrograde burn would slow the spacecraft enough to be captured by Mars. The size of the "neighborhoods" (or spheres of influence) vary with radius formula_104: where formula_106 is the semimajor axis of the planet's orbit relative to the Sun; formula_107 and formula_108 are the masses of the planet and Sun, respectively. This simplification is sufficient to compute rough estimates of fuel requirements, and rough time-of-flight estimates, but it is not generally accurate
Orbital mechanics
didn't complete the orbit during the continuous observations, the error range for orbital period is very large, at 4885 ± 1600 days or 13.37 ± 4.4 years. This puts it in the range of semimajor axes between 4.2 and 6.6 AU or between 630 and 990 Gm. So this planet will need couple more years of observations to better constrain the period and semimajor axis. HD 190984 b HD 190984 b (also known as HIP 99496 b) is an extrasolar planet which orbits the F-type main sequence star HD 190984, located approximately 330 light years away in the constellation Pavo.
HD 190984 b
a distance of 860 AU from A is a third component designated 16 Cygni B. The orbit of B relative to the A–C pair was determined in 1999 and not updated since (as of June 2007): plausible orbits range in period from 18,200 to 1.3 million years, with a semimajor axis ranging from 877 to 15,180 AU. In addition B orbits between 100 and 160 degrees inclination, that is against the A–C pole such that 90 degrees would be ecliptical. Both 16 Cygni A and 16 Cygni B are yellow dwarf stars similar to the Sun. Their spectral types have
16 Cygni
Neptune
Title: Neptune. Content: Neptune Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. Neptune orbits the Sun once every 164.8 years at an average distance of . It is named after the Roman god of the sea and has the astronomical symbol ♆, a stylised version of the
Jupiter
Jupiter
Neptune
Neptune
Neptune
Neptune