With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ceres is within the orbit of Neptune.
text_B: Ceres -LRB- -LSB- ˈsɪəriːz -RSB- minor-planet designation  : 1 Ceres -RRB- is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter .. minor-planet designation. minor-planet designation. largest object. List of notable asteroids. asteroid belt. asteroid belt. Mars. Mars. Jupiter. Jupiter. Its diameter is approximately 945 km , making it the largest of the minor planets within the orbit of Neptune .. orbit of Neptune. Cis-Neptunian object. The 33rd-largest known body in the Solar System , it is the only dwarf planet within the orbit of Neptune.Due to its eccentric orbit , the dwarf planet Pluto was also within the orbit of Neptune from 1979 to 1999 , and will be again from approximately 2227 to 2247 .. orbit of Neptune. Cis-Neptunian object. largest known body. List of Solar System objects by size. Solar System. Solar System. dwarf planet. dwarf planet. Pluto. Pluto. Composed of rock and ice , Ceres is estimated to compose approximately one third of the mass of the entire asteroid belt .. asteroid belt. asteroid belt. Ceres is the only object in the asteroid belt known to be rounded by its own gravity -LRB- though detailed analysis was required to exclude 4 Vesta -RRB- .. asteroid belt. asteroid belt. rounded by its own gravity. hydrostatic equilibrium. 4 Vesta. 4 Vesta. From Earth , the apparent magnitude of Ceres ranges from 6.7 to 9.3 , and hence even at its brightest it is too dim to be seen with the naked eye except under extremely dark skies .. Earth. Earth. apparent magnitude. apparent magnitude. Ceres was the first asteroid to be discovered -LRB- by Giuseppe Piazzi at Palermo on 1 January 1801 -RRB- .. Giuseppe Piazzi. Giuseppe Piazzi. Palermo. Palermo. It was originally considered a planet , but was reclassified as an asteroid in the 1850s after many other objects in similar orbits were discovered .. Ceres appears to be differentiated into a rocky core and an icy mantle , and may have a remnant internal ocean of liquid water under the layer of ice .. differentiated. Planetary differentiation. rocky. Rock ( geology ). core. core ( geology ). mantle. mantle ( geology ). internal ocean. internal ocean. liquid water. Extraterrestrial liquid water. The surface is probably a mixture of water ice and various hydrated minerals such as carbonates and clay .. water ice. Ice. carbonates. carbonate minerals. clay. clay mineral. In January 2014 , emissions of water vapor were detected from several regions of Ceres .. This was unexpected because large bodies in the asteroid belt typically do not emit vapor , a hallmark of comets .. asteroid belt. asteroid belt. The robotic NASA spacecraft Dawn entered orbit around Ceres on 6 March 2015 .. Dawn. Dawn ( spacecraft ). Pictures with a resolution previously unattained were taken during imaging sessions starting in January 2015 as Dawn approached Ceres , showing a cratered surface .. Dawn. Dawn ( spacecraft ). Two distinct bright spots -LRB- or high-albedo features -RRB- inside a crater -LRB- different from the bright spots observed in earlier Hubble images -RRB- were seen in a 19 February 2015 image , leading to speculation about a possible cryovolcanic origin or outgassing .. bright spots. Bright spots on Ceres. albedo. albedo. cryovolcanic. cryovolcano. On 3 March 2015 , a NASA spokesperson said the spots are consistent with highly reflective materials containing ice or salts , but that cryovolcanism is unlikely .. However , on 2 September 2016 , NASA scientists released a paper in Science that claimed that a massive ice volcano called Ahuna Mons is the strongest evidence yet for the existence of these mysterious ice volcanoes .. Ahuna Mons. Ahuna Mons. Science. Science ( magazine ). On 11 May 2015 , NASA released a higher-resolution image showing that , instead of one or two spots , there are actually several .. On 9 December 2015 , NASA scientists reported that the bright spots on Ceres may be related to a type of salt , particularly a form of brine containing magnesium sulfate hexahydrite -LRB- MgSO4 · 6H2O -RRB- ; the spots were also found to be associated with ammonia-rich clays .. bright spots. Bright spots on Ceres. brine. brine. magnesium sulfate. magnesium sulfate. hexahydrite. Sulfate minerals. ammonia-rich clays. Clay. In June 2016 , near-infrared spectra of these bright areas were found to be consistent with a large amount of sodium carbonate , implying that recent geologic activity was probably involved in the creation of the bright spots .. bright spots. Bright spots on Ceres. sodium carbonate. sodium carbonate. In October 2015 , NASA released a true color portrait of Ceres made by Dawn .. Dawn. Dawn ( spacecraft ). In February 2017 , organics were reported to have been detected on Ceres in Ernutet crater -LRB- see image -RRB- .. organics. Organic compound. see image. :File :PIA21419-Ceres-DwarfPlanet-Dawn-ErnutetCrater-OrganicsDetected-20170216.jpg
related.