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66 relations: Amateur, Apparent magnitude, Arecibo Observatory, Astronomer, Astronomical spectroscopy, Astronomical unit, Atom, Barycenter, Binoculars, C/1999 S4, Carbon, Chandra X-ray Observatory, Coma (cometary), Comet, Comet Hale–Bopp, Comet Kohoutek, Comet nucleus, Coronal mass ejection, Degree (angle), Deuterium, Diameter, Diatomic carbon, Ecliptic, Ethane, Full moon, Gas giant, Giant planet, Gravity, Great comet, Great Comet of 1843, Halley's Comet, Hydrogen, Infrared, Ion, Julian year (astronomy), Kagoshima Prefecture, Kelvin, Latitude, Magnetic field, Mercury (planet), Methane, Minute and second of arc, Moon, Naked eye, NASA, National Astronomical Observatory of Japan, Nitrogen, Northern Hemisphere, Objective (optics), Oort cloud, ..., Orbit, Oxygen, Perihelion and aphelion, Perturbation (astronomy), Pole star, Proton, ROSAT, Satellite, Solar and Heliospheric Observatory, Solar System, Solar wind, Sun, Ulysses (spacecraft), X-ray, Yuji Hyakutake, Zenith. Expand index (16 more) »
Amateur
An amateur (French amateur "lover of", from Old French and ultimately from Latin amatorem nom. amator, "lover") is generally considered a person who pursues a particular activity or field of study independently from their source of income.
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Apparent magnitude
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
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Arecibo Observatory
The Arecibo Observatory is a radio telescope in the municipality of Arecibo, Puerto Rico.
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Astronomer
An astronomer is a scientist in the field of astronomy who concentrates their studies on a specific question or field outside the scope of Earth.
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Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light and radio, which radiates from stars and other celestial objects.
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Astronomical unit
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
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Atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
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Barycenter
The barycenter (or barycentre; from the Ancient Greek βαρύς heavy + κέντρον centre) is the center of mass of two or more bodies that are orbiting each other, which is the point around which they both orbit.
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Binoculars
Binoculars or field glasses are two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.
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C/1999 S4
C/1999 S4 (LINEAR) is a long-period comet discovered on September 27, 1999, by LINEAR.
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Carbon
Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.
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Chandra X-ray Observatory
The Chandra X-ray Observatory (CXO), previously known as the Advanced X-ray Astrophysics Facility (AXAF), is a Flagship-class space observatory launched on STS-93 by NASA on July 23, 1999.
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Coma (cometary)
The coma is the nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun on its highly elliptical orbit; as the comet warms, parts of it sublime.
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Comet
A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing.
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Comet Hale–Bopp
Comet Hale–Bopp (formally designated C/1995 O1) is a comet that was perhaps the most widely observed of the 20th century, and one of the brightest seen for many decades.
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Comet Kohoutek
Comet Kohoutek, formally designated C/1973 E1, 1973 XII, and 1973f, was first sighted on 7 March 1973 by Czech astronomer Luboš Kohoutek.
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Comet nucleus
The nucleus is the solid, central part of a comet, popularly termed a dirty snowball or an icy dirtball.
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Coronal mass ejection
A coronal mass ejection (CME) is a significant release of plasma and magnetic field from the solar corona.
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Degree (angle)
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees.
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Deuterium
Deuterium (or hydrogen-2, symbol or, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other being protium, or hydrogen-1).
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Diameter
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
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Diatomic carbon
Diatomic carbon (systematically named ethenediylidene and dicarbon(C—C)), also called dicarbon, is an inorganic chemical with the chemical formula C.
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Ecliptic
The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.
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Ethane
Ethane is an organic chemical compound with chemical formula.
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Full moon
The full moon is the lunar phase when the Moon appears fully illuminated from Earth's perspective.
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Gas giant
A gas giant is a giant planet composed mainly of hydrogen and helium.
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Giant planet
A giant planet is any massive planet.
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Gravity
Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.
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Great comet
A great comet is a comet that becomes exceptionally bright.
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Great Comet of 1843
The Great Comet of 1843, formally designated C/1843 D1 and 1843 I, was a long-period comet which became very bright in March 1843 (it is also known as the Great March Comet).
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Halley's Comet
Halley's Comet or Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 74–79 years.
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Hydrogen
Hydrogen is a chemical element with symbol H and atomic number 1.
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Julian year (astronomy)
In astronomy, a Julian year (symbol: a) is a unit of measurement of time defined as exactly 365.25 days of SI seconds each.
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Kagoshima Prefecture
is a prefecture of Japan located on the island of Kyushu.
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Kelvin
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
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Latitude
In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface.
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Magnetic field
A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials.
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Mercury (planet)
Mercury is the smallest and innermost planet in the Solar System.
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Methane
Methane is a chemical compound with the chemical formula (one atom of carbon and four atoms of hydrogen).
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Minute and second of arc
A minute of arc, arcminute (arcmin), arc minute, or minute arc is a unit of angular measurement equal to of one degree.
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Moon
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.
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Naked eye
Naked eye, also called bare eye or unaided eye, is the practice of engaging in visual perception unaided by a magnifying or light-collecting optical instrument, such as a telescope or microscope.
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NASA
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
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National Astronomical Observatory of Japan
The (NAOJ) is an astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii.
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Nitrogen
Nitrogen is a chemical element with symbol N and atomic number 7.
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Northern Hemisphere
The Northern Hemisphere is the half of Earth that is north of the Equator.
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Objective (optics)
In optical engineering, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image.
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Oort cloud
The Oort cloud, named after the Dutch astronomer Jan Oort, sometimes called the Öpik–Oort cloud, is a theoretical cloud of predominantly icy planetesimals proposed to surround the Sun at distances ranging from.
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Orbit
In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Perihelion and aphelion
The perihelion of any orbit of a celestial body about the Sun is the point where the body comes nearest to the Sun.
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Perturbation (astronomy)
In astronomy, perturbation is the complex motion of a massive body subject to forces other than the gravitational attraction of a single other massive body.
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Pole star
Pole star or polar star refers to a star, preferably bright, closely aligned to the axis of rotation of an astronomical object.
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Proton
| magnetic_moment.
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ROSAT
ROSAT (short for Röntgensatellit, in German X-rays are called Röntgenstrahlen, in honour of Wilhelm Röntgen) was a German Aerospace Center-led satellite X-ray telescope, with instruments built by West Germany, the United Kingdom and the United States.
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Satellite
In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit.
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Solar and Heliospheric Observatory
The Solar and Heliospheric Observatory (SOHO) is a spacecraft built by a European industrial consortium led by Matra Marconi Space (now Astrium) that was launched on a Lockheed Martin Atlas II AS launch vehicle on December 2, 1995, to study the Sun, and has discovered over 3000 comets.
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Solar System
The Solar SystemCapitalization of the name varies.
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Solar wind
The solar wind is a stream of charged particles released from the upper atmosphere of the Sun, called the corona.
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Sun
The Sun is the star at the center of the Solar System.
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Ulysses (spacecraft)
Ulysses is a decommissioned robotic space probe whose primary mission was to orbit the Sun and study it at all latitudes.
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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Yuji Hyakutake
was a Japanese amateur astronomer who discovered Comet C/1996 B2, also known as Comet Hyakutake on January 31, 1996 while using 25×150 binoculars.
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Zenith
The zenith is an imaginary point directly "above" a particular location, on the imaginary celestial sphere.
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Redirects here:
C/1996 B2, C/1996 B2 (Hyakutake), Comet Hyakutake (C/1996 B2), Comet Hyakutaki, Great comet of 1996, Hyakutake, Hyakutake comet.
References
[1] https://en.wikipedia.org/wiki/Comet_Hyakutake
