| Messier 80 | |
 A Hubble Space Telescope (HST) image of M80. The Messier objects are a set of Astronomical objects first listed by French astronomer Charles Messier in his "Catalogue des Nébuleuses The Hubble Space Telescope ( HST; also known colloquially as "the Hubble" or just "Hubble" is a space telescope that was carried into Credit: HST/NASA/ESA. The National Aeronautics and Space Administration ( NASA, ˈnæsə is an agency of the United States government, responsible for the nation's public space program The European Space Agency ( ESA) established in 1975 is an intergovernmental organisation dedicated to the exploration of space, currently with 17 member |
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| Observation data (J2000 epoch) | |
|---|---|
| Class | II |
| Constellation | Scorpius |
| Right ascension | 16h 17m 02. In Astronomy, an epoch is a moment in time used as a reference for the Orbital elements of a Celestial body. In Astronomy, an epoch is a moment in time used as a reference for the Orbital elements of a Celestial body. The Shapley–Sawyer Concentration Class is a classification system on a scale of one to twelve using Roman numerals for Globular clusters according to their concentration In common usage a constellation is a group of celestial bodies that are connected together in some arrangement typically stars to form a visible figure or picture Scorpius ( Latin for Scorpion, symbol, Unicode ♏ is one of the Constellations of the Zodiac. Right ascension (abbrev RA; symbol α) is the Astronomical term for one of the two Coordinates of a point on the Celestial sphere 51s[1] |
| Declination | -22° 58′ 30. In Astronomy, declination (abbrev dec or δ) is one of the two coordinates of the Equatorial coordinate system, the other being either 4″[1] |
| Distance | 32. 6 kly (10 kpc) |
| Apparent magnitude (V) | +7. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by History The first direct measurements of an object at interstellar distances were undertaken by German Astronomer Friedrich Wilhelm Bessel in 1838 The apparent magnitude ( m) of a celestial body is a measure of its Brightness as seen by an observer on Earth, normalized to the value 87[1] |
| Apparent dimensions (V) | 10′. 0 |
| Physical characteristics | |
| Mass | kg ( M ) |
| Radius | 48 ly |
| Other designations | M80, NGC 6093, GCl 39[1] |
| See also: Globular cluster, List of globular clusters | |
Messier 80 (also known as M80 or NGC 6093) is a globular cluster in the constellation Scorpius. The solar mass is a standard way to express Mass in Astronomy, used to describe the masses of other Stars and galaxies. A globular cluster is a spherical collection of Stars that orbits a galactic core as a Satellite. This is a list of Globular clusters. The apparentmagnitude does not include an extinction correction A globular cluster is a spherical collection of Stars that orbits a galactic core as a Satellite. In common usage a constellation is a group of celestial bodies that are connected together in some arrangement typically stars to form a visible figure or picture Scorpius ( Latin for Scorpion, symbol, Unicode ♏ is one of the Constellations of the Zodiac. It was discovered by Charles Messier in 1781. Charles Messier ( June 26, 1730 &ndash April 12, 1817) was a French astronomer most notable for publishing an Year 1781 ( MDCCLXXXI) was a Common year starting on Monday (link will display the full calendar of the Gregorian calendar (or a Common
M80 is located midway between α Scorpii (Antares) and β Scorpii in a field in the Milky Way that is rich in nebulae. A nebula (from Latin: "mist" pl nebulae or nebulæ, with ligature or nebulas) is an Interstellar cloud of It can be viewed with modest amateur telescopes as a mottled ball of light. A telescope is an instrument designed for the observation of remote objects and the collection of Electromagnetic radiation. With an apparent diameter of about 10' and at an estimated distance of 32,600 light-years, M80's spatial diameter is about 95 light-years and contains several hundred thousand stars. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by A star is a massive luminous ball of plasma. The nearest star to Earth is the Sun, which is the source of most of the Energy on Earth It is among the more densely populated globular clusters in the Milky Way Galaxy. The Milky Way (a translation of the Latin Via Lactea, in turn derived from the Greek Γαλαξίας (Galaxias sometimes referred to simply M80 contains a relatively large amount of blue stragglers, stars that appear to be much younger than the cluster itself. Blue stragglers ( BSS) are Stars in open or Globular clusters that are hotter and bluer than other cluster stars having the same Luminosity It is thought these stars have lost part of their outer layers due to close encounters with other cluster members or perhaps the result of collisions between stars in the dense cluster. Images from the Hubble Space Telescope have shown districts of very high blue straggler densities, suggesting that the center of the cluster is likely to have a very high capture and collision rate. The Hubble Space Telescope ( HST; also known colloquially as "the Hubble" or just "Hubble" is a space telescope that was carried into
On May 21, 1860 a nova was discovered in M80 that attained a magnitude of +7. Events 878 - Syracuse Italy is captured by the Muslim sultan of Sicily. Year 1860 ( MDCCLX) was a Leap year starting on Sunday (link will display the full calendar of the Gregorian Calendar (or a Leap year starting A nova (pl novae or novas) is a Cataclysmic nuclear explosion caused by the accretion of hydrogen onto the surface of a White The apparent magnitude ( m) of a celestial body is a measure of its Brightness as seen by an observer on Earth, normalized to the value 0. This nova, carrying the variable star designation T Scorpii reached an absolute magnitude of -8. For the astronomical object see Variable star. Variable Star is a 2006 novel written by Spider Robinson In Astronomy, absolute magnitude (also known as absolute visual magnitude) is the Apparent magnitude an object would have if it were at a standard 5, briefly outshining the entire cluster.
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