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Gennadii Borisov
Gennadiy Vladimirovich Borisov (; born in 1962 in Kramatorsk) is a Crimean telescope maker and amateur astronomer who discovered the first-known interstellar comet, 2I/Borisov, in 2019. Work Borisov works as an engineer at the Not to be confused with the Crimean Astrophysical Observatory, which is located right next to it. of the Sternberg Astronomical Institute of Moscow State University. There, he maintains the telescopes, but does not make observations himself. He also works with Astronomicheskiy Nauchnyy Tsentr JSC, creating experimental telescopes in collaboration with Roscosmos. Borisov pursues astronomy in his spare time at his personal observatory MARGO located in Nauchnyi, in the southern part of the Crimean peninsula. Between 2013 and 2019, he discovered nine comets and several near-Earth objects (NEOs) such as . These discoveries were made using telescopes he designed and built himself: GENON (2 comets), GENON Max (5 comets) and the unnamed 0.65 m telescope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kramatorsk
Kramatorsk (, ; ) is a city and the administrative centre of Kramatorsk Raion in Donetsk Oblast of the Donbas region of eastern Ukraine. Prior to 2020, Kramatorsk was a city of oblast significance. Since October 2014, Kramatorsk has been the provisional seat of Donetsk Oblast, following the events surrounding the war in Donbas. Its population is It is an important industrial and mechanical engineering center in Ukraine. Kramatorsk is on the banks of the Kazennyi Torets, a right tributary of the Siverskyi Donets. Since the start of the Russian invasion of Ukraine, Kramatorsk has been hit by Russian shelling multiple times. Etymology According to Doctor of Philology Yevhen Otin from Dnipro who specializes in onomastics, the name of the city comes from a toponymic phrase that has not been preserved: ''Krom Torov'' or ''Krom Torskaya'' 'border along the Tor River'. The word ''kroma'' means 'edge, frontier, border', and ''Tor'' is the old name for the Kazennyi Torets River. Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crimean Astrophysical Observatory
The Crimean Astrophysical Observatory (CrAO, obs. code: 095) is located at Nauchnij research campus, near the Central Crimean city of Bakhchysarai, on the Crimean peninsula. CrAO is often called simply by its location and campus name, Crimea–Nauchnij, still ranks among the worldwide most prolific discovery sites for minor planet According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor ...s. CrAO has also been publishing the ''Bulletin of the Crimean Astrophysical Observatory'' since 1947, in English since 1977. The observatory facilities ( IAU code 095) are located on territory of settlement of Nauchnyi since the mid-1950s; before that, they were further south, near Simeiz. The latter facilities still see some use, and are referred to as the Crimean Astrophysical Observator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrograph
An astrograph (or astrographic camera) is a telescope designed for the sole purpose of astrophotography. Astrographs are mostly used in wide-field astronomical surveys of the sky and for detection of objects such as asteroids, meteors, and comets. Improvements in photography in the middle 19th century led to designs dedicated to astrophotography, and they were also popular in the 20th century. As in other photography, chemicals were used that respond to light, recorded on a glass photographic plate or sometimes on photographic film. Many observatories of this period used an astrograph, beside instruments like the transit telescope, great refractors, and chronometers, or instruments for observing the Sun. Astrographs were often used to make surveys of the night sky, and one of the famous projects was Carte du Ciel. Discoveries using an astrograph include then-planet Pluto. Rather than looking through the telescope, it was discovered by using a blink comparator with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lowell Observatory
Lowell Observatory is an astronomical observatory in Flagstaff, Arizona, United States. Lowell Observatory was established in 1894, placing it among the oldest observatories in the United States, and was designated a National Historic Landmark in 1965. and In 2011, the Observatory was named one of "The World's 100 Most Important Places" by Time Magazine. It was at the Lowell Observatory that the dwarf planet Pluto was discovered in 1930 by Clyde Tombaugh. The observatory was founded by astronomer Percival Lowell of Boston's Lowell family and is overseen by a sole trustee, a position historically handed down through the family. The first trustee was Lowell's third cousin Guy Lowell (1916–1927). Percival's nephew Roger Putnam served from 1927 to 1967, followed by Roger's son Michael (1967–1987), Michael's brother William Lowell Putnam III (1987–2013), and current trustee W. Lowell Putnam. Multiple astronauts attended the Lowell Observatory in 1963 while the moon was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clyde Tombaugh
Clyde William Tombaugh (; February 4, 1906 – January 17, 1997) was an American astronomer best known for discovering Pluto, the first object to be identified in what would later be recognized as the Kuiper belt, in 1930. Raised on farms in Illinois and Kansas, Tombaugh was largely self-taught in astronomy and optics, building his own telescopes before being hired by Lowell Observatory in Arizona. His meticulous photographic sky surveys led to the discovery of Pluto, which was at the time classified as the ninth planet in the Solar System. Tombaugh also discovered numerous asteroids, star clusters, and galaxies, and made significant contributions to planetary observation and instrumentation. As a professor at New Mexico State University, he directed the Planetary Patrol project that confirmed the daily rotation period of Mercury, studied the Great Red Spot on Jupiter, and developed new photographic techniques for satellite searches. After his retirement in 1973, Tomba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pluto
Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of Trans-Neptunian object, bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume by a small margin, but is less massive than Eris (dwarf planet), Eris. Like other Kuiper belt objects, Pluto is made primarily of ice and rock and is much smaller than the inner planets. Pluto has roughly one-sixth the mass of the Moon and one-third its volume. Originally considered a planet, its classification was changed when astronomers adopted a new definition of planet, definition of ''planet''. Pluto has a moderately Orbital eccentricity, eccentric and Inclination, inclined orbit, ranging from from the Sun. Light from the Sun takes 5.5 hours to reach Pluto at its orbital distance of . Pluto's eccentric orbit periodically brings it closer to the Sun than Neptune, but a stabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potentially Hazardous Object
A potentially hazardous object (PHO) is a near-Earth object – either an asteroid or a comet – with an orbit that can make close approaches to the Earth and which is large enough to cause significant regional damage in the event of impact. They are conventionally defined as having a minimum orbit intersection distance with Earth of less than and an absolute magnitude of 22 or brighter, the latter of which roughly corresponds to a size larger than 140 meters. More than 99% of the known potentially hazardous objects are no impact threat over the next 100 years. , just 21 of the known potentially hazardous objects listed on the Sentry Risk Table could not be excluded as potential threats over the next hundred years. Over hundreds if not thousands of years though, the orbits of some "potentially hazardous" asteroids can evolve to live up to their namesake. Most of these objects are potentially hazardous asteroids (PHAs), and a few are comets. there are 2,304 known PHAs (about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minor Planet Center
The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Function The Minor Planet Center is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids), calculating their orbits and publishing this information via the '' Minor Planet Circulars''. Under the auspices of the International Astronomical Union (IAU), it operates at the Smithsonian Astrophysical Observatory, which is part of the Center for Astrophysics along with the Harvard College Observatory. The MPC runs a number of free online services for observers to assist them in observing minor planets and comets. The complete catalogue of minor planet orbits (sometimes referred to as the "Minor Planet Catalogue") may also be freely downloaded. In addition to astrometric data, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main-belt
The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies called asteroids or minor planets. The identified objects are of many sizes, but much smaller than planets, and, on average, are about one million kilometers (or six hundred thousand miles) apart. This asteroid belt is also called the main asteroid belt or main belt to distinguish it from other asteroid populations in the Solar System. The asteroid belt is the smallest and innermost circumstellar disc in the Solar System. Classes of small Solar System bodies in other regions are the near-Earth objects, the centaurs, the Kuiper belt objects, the scattered disc objects, the sednoids, and the Oort cloud objects. About 60% of the main belt mass is contained in the four largest asteroids: Ceres, Vesta, Pallas, and Hygiea. The total mass of the asteroid be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Asteroids (citizen Science Project)
Active Asteroids is a NASA partner citizen science project that successfully discovered active asteroids, including main-belt comets, quasi-Hilda objects, and Jupiter family comets. The project is hosted on the Zooniverse platform and is funded by a NSF Graduate Research Fellowship Program. It uses images from the Dark Energy Camera (DECam) to search for tails around asteroids and other minor planets. The research team is led by Colin Orion Chandler. As of April 2024 about 8300 volunteers carried out 6.7 million classifications of 430 thousand images. At the time only 60 active asteroids were known and 16 new active objects were discovered by this project, significantly increasing the sample of known objects. Pre-launch preparation Before the team launched the project, the team gained experience with DECam and published three papers. These include detection of activity around previously known active asteroid (62412) 2000 SY178, revealing 6 years of avtivity on (6478) Gault a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
(523822) 2012 DG61
5 (five) is a number, numeral and digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. Humans, and many other animals, have 5 digits on their limbs. Mathematics 5 is a Fermat prime, a Mersenne prime exponent, as well as a Fibonacci number. 5 is the first congruent number, as well as the length of the hypotenuse of the smallest integer-sided right triangle, making part of the smallest Pythagorean triple ( 3, 4, 5). 5 is the first safe prime and the first good prime. 11 forms the first pair of sexy primes with 5. 5 is the second Fermat prime, of a total of five known Fermat primes. 5 is also the first of three known Wilson primes (5, 13, 563). Geometry A shape with five sides is called a pentagon. The pentagon is the first regular polygon that does not tile the plane with copies of itself. It is the largest face any of the five regular three-dimensional regular Platonic solid can have. A conic is determined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2023 BU
__NOTOC__ 2023 BU is a near-Earth object that passed from the centerpoint of Earth around 27 January 2023 00:29 UT. Since Earth's radius is about , it was expected to pass approximately from the surface of Earth over the southern tip of South America. It passed at an altitude above low Earth orbit which is and below geostationary orbit which is . The asteroid is about 3–8 meters in diameter and approached Earth from the night sky. It is the fourth closest non-impacting approach known to Earth (excluding Earth-grazing fireball, Earthgrazers) after , , and . Orbital details The asteroid came to perihelion (closest approach to the Sun) on 27 January 2023, four hours after closest approach with Earth. 2023 BU was first imaged by Gennadiy Borisov at Nauchnyi, Crimea, on 21 January 2023 23:53 UT, about five days before closest approach. It was last observed on 31 January 2023. The gravitational effect of the 2023 Earth approach will increase the orbital period from 359 days t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
