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Oumuamua is the only interstellar object in the first and present to pass through the solar system. Formally designated 1I / 2017 U1, it was discovered by Robert Verac on 19 October 2017, using the Pan-Starrs Telescope in Heklela Observatory, Hawaii, which was 40 days after passing the nearest point of the Sun. When first seen, it was approximately 33,000,000 km (21,000,000 miles (0.22 AU) from the Earth (about 85 times away from the Moon), and was already moving away from the sun.

Estimated Oumuamua is a small object, which is approximately 100 m-1,000 m × 35 m-167 m × 35 m-167 m (328 ft-3,281 ft × 115 ft-548 ft × 115 ft-5x ft). It has a dark red color similar to the objects of the outer solar system. 'Oummuya did not show any sign of comet coma (atmospheres) despite coming closer to the sun, but non-gravity acceleration was seen. This effect is seen in many icy comets, although other reasons have been suggested. Nevertheless, according to a NASA scientist, the object may be a disintegrated interstellar comet (or exocomet). The object has a rotation rate, which is similar to the average spin rate seen in the Solar System asteroids but is longer than all the other natural bodies. While a strong object (stack of debris) will require density similar to rocky asteroids, a small amount of internal power similar to the icy comet would allow relatively low density. Rather Oumuamu is tumbling rather than moving around smoothly and is moving so fast with respect to the Sun that there is no chance of being born in the solar system. It also means that um Oumuamua cannot be placed in a solar cell, so it will ultimately leave the solar system and the interstellar will resume traveling through space. It will take about 20,000 years to travel to the Solar System before you exit. The amount of time it takes to travel between the system of origin and the stars of Oumuamua is unknown.

Nomenclature of Oumuamua

As the first known object of its kind, The Oumuamua presented a unique case for the International Astronomical Union, which provides a designation for celestial objects. Originally classed as comet C / 2017 U1, it was later reclassified as Asteroid A / 2017 U1 due to the absence of coma. Once it was clearly identified as coming out of the solar system, a new designation was made: I, for the interstellar object. So Oumumuah, in the form of the first identity, was named 1I, in which rules on the eligibility of items for the I-number and the names assigned to these interstellar objects were to be coded. The object can be referred to as 1I; 1 I / 2017 U 1; 1 I / Oumuamua; Or 1I / 2017U1 (Oumuamua).

The name comes from Hawaii "Oumuamua" which means 'scout' (from ou, meaning 'to reach out', and 'mua', 'before for', meaning 'beforehand' '), And it is like an object scout sent by the messenger to reach humanity from the past. It translates into roughly "the first messenger of the first". The first character is a Hawaii ina oakina, is not an epostrop, and is pronounced as a glottal stop; The name was selected by Pan-StarRS team in consultation with Kaiyu Kimura in Hilo and Larry Kimura of Hawaii University.

Prior to the official name being fixed, Ram Naam was suggested, Arthur C., in the 1973 science fiction novel Rendezvous with Ram. The name given to a foreign spacecraft searched by Clark in similar circumstances

Observations of Oumuamua

OumuamuaObservations and conclusions about Oumua's trajectory were mainly obtained with the Pan-StarrS1 telescope, part of the Spaceguard Survey and data from the Canada-France-Hawaii Telescope (CFHT), and its structure and size were very large telescopes and From Gemini South telescope in Chile, as well as Kick II binoculars in Hawaii. Karen J. Mick was collected by Robert Verrick and his colleagues and was published in Nature on November 20, 2017. Post announcements, space-based telescope Hubble and Spitzer are included in the comments

'Omuamua is small and dark. It was not seen in the STEREO HI-1A observations near its perimeter on September 9, 2017; its brightness was limited to ~ 13.5 mg. By the end of October, oumoumua had already faded up to 23% clear, and in mid-December 2017, it was studied by the largest ground-based telescope to move very fast and rapidly.

Ict Omumuya was compared to fictional alien spacecraft Ram because it was the origin of the origin. Incidentally, both real and fictitious objects have been abnormally extended. Ue Omuamua has a red color and unstable glow, which are typical of asteroids.

The radio telescope of the SETI Institute, Alan Telescope Array, examined um oumuamua, but found no unusual radio emission. More detailed observations were made using Breakthrough Lensen hardware and Green Bank Telescope; The data were searched for narrowband signal and no one found. Given the close proximity to this interstellar object, limits were set for border transit with the extremely low power of 0.08 watt.

OumuamuaOumuamua Reviewed by Know It All on February 27, 2019 Rating: 5

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