| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Ursa Major |
| Right ascension | 12h 15m 25. 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. 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 Each culture has its own Constellations usually based on Mythology. Ursa Major ( is a Constellation visible throughout the year in most of the northern hemisphere Right ascension (abbrev RA; symbol α) is the Astronomical term for one of the two Coordinates of a point on the Celestial sphere 6s |
| Declination | +57° 01' 57" |
| Apparent magnitude (V) | +3. In Astronomy, declination (abbrev dec or δ) is one of the two coordinates of the Equatorial coordinate system, the other being either 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 32 |
| Distance | 81. The cosmic distance ladder (also known as the Extragalactic Distance Scale) is the succession of methods by which astronomers determine the Distances to celestial 4 ± 1. 2 ly (25. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by 0 ± 0. 4 pc) |
| Spectral type | A3V |
| Other designations | |
Delta Ursae Majoris (δ UMa / δ Ursae Majoris) is a star in the constellation Ursa Major. History The first direct measurements of an object at interstellar distances were undertaken by German Astronomer Friedrich Wilhelm Bessel in 1838 In Astronomy, stellar classification is a classification of Stars based initially on photospheric temperature and its associated Spectral characteristics A star catalogue, or star catalog, is an Astronomical catalogue that lists Stars In Astronomy, many stars are referred to simply by catalogue A star catalogue, or star catalog, is an Astronomical catalogue that lists Stars In Astronomy, many stars are referred to simply by catalogue The Henry Draper Catalogue ( HD) is an Astronomical Star catalogue published between 1918 and 1924 giving Spectroscopic classifications A star catalogue, or star catalog, is an Astronomical catalogue that lists Stars In Astronomy, many stars are referred to simply by catalogue The Hipparcos and Tycho Catalogues (Tycho-1 are the primary products of the European Space Agency 's astrometric mission Hipparcos. A star catalogue, or star catalog, is an Astronomical catalogue that lists Stars In Astronomy, many stars are referred to simply by catalogue 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 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 Ursa Major ( is a Constellation visible throughout the year in most of the northern hemisphere It also has the traditional name Megrez (Arabic: مغرز). The Arabic alphabet is the script used for writing several languages of Asia and Africa such as Arabic, Persian, and Urdu.
Megrez has an apparent magnitude of +3. 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 32 making it the dimmest of the seven stars in the Big Dipper. This article is about the asterism; for other uses see Big Dipper (disambiguation. Located 81 light years away, it has spectral type A3. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by In Astronomy, stellar classification is a classification of Stars based initially on photospheric temperature and its associated Spectral characteristics It has two faint companions, the 11th magnitude Delta Ursae Majoris B, 190 arcseconds away and the 10th magnitude Delta Ursae Majoris C, 186 arcseconds away. A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree. A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60 of one degree.
It is part of the Ursa Major moving group. The Ursa Major Moving Group, also known as Collinder 285, is the closest Moving group to Earth, that is a set of stars with common velocities in space
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