|
Alpha Leporis (α Lep / α Leporis) is the brightest star in the constellation Lepus. It also has the traditional name Arneb. In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. ...
This article or section does not cite its references or sources. ...
Lepus (Latin for Hare) is a constellation, lying just south of Orion, and possibly representing a hare being chased by him. ...
Right ascension (RA; symbol α: Greek letter alpha) is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. ...
In astronomy, declination (dec) is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. ...
// Headline text HEY!! HOW ARE YOU ALL?? Its nice of you to come read this page. ...
In astronomy, stellar classification is a classification of stars based initially on photospheric temperature and its associated spectral characteristics, and subsequently refined in terms of other characteristics. ...
In astronomy, color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature. ...
In astronomy, color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature. ...
Most stars are of almost constant luminosity. ...
This article does not cite its references or sources. ...
Radial velocity is the velocity of an object in the direction of the line of sight. ...
kilometre per second is an SI derived unit of both speed (scalar) and velocity (vector), signified by the symbol km/s or km s-1. ...
The proper motion of a star is the motion of the position of the star in the sky (the change in direction in which we see it, as opposed to the radial velocity) after eliminating the improper motions of the stars, which affect their measured coordinates but are not real...
A milliarcsecond (m, mas) , or a thoundsanth of an arcsecond. ...
A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ...
A milliarcsecond (m, mas) , or a thoundsanth of an arcsecond. ...
A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ...
Parallax, or more accurately motion parallax (Greek: ÏαÏαλλαγή (parallagé) = alteration) is the change of angular position of two stationary points relative to each other as seen by an observer, due to the motion of an observer. ...
A milliarcsecond (m, mas) , or a thoundsanth of an arcsecond. ...
Distance is a numerical description of how far apart things lie. ...
A light year, abbreviated ly, is the distance light travels in one year: roughly 9. ...
Stellar parallax motion The parsec (symbol pc) is a unit of length used in astronomy. ...
In astronomy, absolute magnitude is the apparent magnitude, m, an object would have if it were at a standard luminosity distance away from us (in the absence of interstellar extinction!). It allows the overall brightnesses of objects to be compared without regard to distance. ...
Mass is a property of a physical object that quantifies the amount of matter and energy it is equivalent to. ...
In astronomy, the solar mass is a unit of mass used to express the mass of stars and larger objects such as galaxies. ...
In classical geometry, a radius of a circle or sphere is any line segment from its center to its boundary. ...
In astronomy, the solar radius is a unit of length used to express the size of stars and larger objects such as galaxies. ...
Luminosity has different meanings in several different fields of science. ...
The solar luminosity, , is a unit of luminosity (power emitted in the form of photons) conventionally used by astronomers to give the luminosities of stars. ...
In thermodynamics, temperature is the physical property of a system that underlies the common notions of hot and cold âsomething that is hotter has the greater temperature. ...
The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. ...
In astronomy, the metallicity of an object is the proportion of its matter made up of chemical elements other than hydrogen and helium. ...
A sphere rotating around its axis. ...
The Pleiades, an open cluster of stars in the constellation of Taurus. ...
A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ...
In astronomy, many stars are referred to simply by catalogue numbers. ...
In astronomy, many stars are referred to simply by catalogue numbers. ...
In astronomy, many stars are referred to simply by catalogue numbers. ...
The Henry Draper Catalogue is an astronomy catalogue with astrometric and spectroscopic data about more than 225,000 stars. ...
The Smithsonian Astrophysical Observatory (SAO) is a research institute of the Smithsonian Institution headquartered in Cambridge, Massachusetts, where it is joined with the Harvard College Observatory (HCO) to form the Harvard-Smithsonian Center for Astrophysics (CfA). ...
In astronomy, many stars are referred to simply by catalogue numbers. ...
The Pleiades, an open cluster of stars in the constellation of Taurus. ...
This article or section does not cite its references or sources. ...
Categories: Astronomy stubs | Constellations listed by Ptolemy | Modern constellations | Constellations | Lepus constellation ...
Alpha Leporis is an older, dying star that may have already passed through a supergiant phase and is now contracting and heating up in the latter phases of stellar evolution, or perhaps is still expanding into the supergiant phase. With a mass of likely less than 10 times that of the Sun, it will likely end its life as a hot white dwarf, although if it is at the heavier end of its estimated mass it may end in a spectacular stellar explostion known as a supernova. Supergiants are the most massive stars. ...
In astronomy, stellar evolution is the sequence of changes that a star undergoes during its lifetime; the hundreds of thousands, millions or billions of years during which it emits light and heat. ...
The Sun is the star of our solar system. ...
White dwarf Sirius-B in x-rays A white dwarf is an astronomical object which is produced when a low or medium mass star dies. ...
Multiwavelength X-ray image of the remnant of Keplers Supernova, SN 1604. ...
It is also a commen name and has been considered to be the greatest in history Nathan is a toot head |