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Boötes
Boötes
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List of stars in Boötes
Abbreviation: Boo
Genitive: Bootis
Symbology: the Bear Watcher
Right ascension: 15 h
Declination: +30°
Area: 907 sq. This is the list of notable Stars in the Constellation Boötes, sorted by decreasing brightness In Grammar, the genitive case or possessive case (also called the second case) is the case that marks a Noun as modifying another The Grigori are a group of Fallen angels told of in Biblical apocrypha who mated with mortal women giving rise to a race of hybrids known as the Nephilim Right ascension (abbrev RA; symbol α) is the Astronomical term for one of the two Coordinates of a point on the Celestial sphere In Astronomy, declination (abbrev dec or δ) is one of the two coordinates of the Equatorial coordinate system, the other being either deg.  (13th)
Main stars: 7, 15
Bayer/Flamsteed stars: 59
Stars known to have planets: 4
Bright stars: 3
Nearby stars: 6
Brightest star: Arcturus (α Boo) (−0. Here is a list of the 88 modern Constellations by their area in the sky measured in square degrees. A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Flamsteed designations for Stars are similar to Bayer designations except that they use numbers instead of Greek letters An extrasolar planet, or exoplanet, is a Planet beyond the Solar System, orbiting around other Stars As of September 2008 312 |- bgcolor="#FFFAFA"| note (category variability || H and K emission vary 04m)
Nearest star: ξ Boo (21. 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 Xi Boötis (ξ Boo / ξ Boötis is a Double star system 218 Light years away from Earth. 8 ly)
Messier objects: 0
Meteor showers: January Bootids
June Bootids
Quadrantids
Bordering constellations: Canes Venatici
Coma Berenices
Corona Borealis
Draco
Hercules
Serpens Caput
Virgo
Ursa Major
Visible at latitudes between +90° and −50°
Best visible at 21:00 (9 p. A light-year or light year (symbol ly) is a unit of Length, equal to just under ten trillion Kilometres As defined by The Messier objects are a set of Astronomical objects first listed by French astronomer Charles Messier in his "Catalogue des Nébuleuses A meteor shower, some of which are known as a "meteor storm" or "meteor outburst" is a celestial event where a group of meteors are observed to radiate from one point The June Bootids are a Meteor shower occurring roughly between 26 June and 2 July each year The Quadrantids are a strong January Meteor shower. The radiant of this shower is an area inside the Constellation Boötes. Canes Venatici ( Hunting dogs) is a small northern Constellation that was introduced by Johannes Hevelius in the 17th century Coma Berenices ( Berenice 's Hair) is a traditional asterism that has since become a Constellation. Draco (ˈdreɪkoʊ Dragon) is a far northern Constellation that is circumpolar for many Northern hemisphere observers Hercules (ˈhɝkjəliːz ˈhɝkjuːliːz is the fifth largest of the 88 modern Constellations It was also one of Ptolemy 's 48 constellations Serpens (ˈsɝpənz Latin for " Snake " is one of the 88 modern Constellations and was also one of the 48 listed by Ptolemy. Virgo ( Virgin, symbol, Unicode ♍ is a Constellation of the Zodiac. Ursa Major ( is a Constellation visible throughout the year in most of the northern hemisphere m. ) during the month of June
Other designations: Arctophylax

Boötes (IPA: /boʊˈoʊtiːz/ Greek: Βοώτης or herdsman) is one of the 88 modern constellations and was also one of the 48 constellations listed by Ptolemy. 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 Claudius Ptolemaeus ( Greek: Klaúdios Ptolemaîos; after 83 &ndash ca Boötes is generally referred to as the Bear Watcher, since it appears to be watching over the constellations Ursa Major and Ursa Minor. Ursa Major ( is a Constellation visible throughout the year in most of the northern hemisphere It contains the third brightest star in the night sky, Arcturus. Bright stars are bright because they have high luminosities and/or they are nearby |- bgcolor="#FFFAFA"| note (category variability || H and K emission vary Note that the "ö" in the name is a diaeresis, not an umlaut. In Linguistics, diaeresis, or dieresis, is the pronunciation of two adjacent Vowels in two separate Syllables rather than as a Diphthong Diaeresis or trema See also Diaeresis History Historically the diaeresis mark or trema is far older than the umlaut mark

The constellation is located between 0° and +60° declination, 13 and 16 hours of right ascension on the celestial sphere. In Astronomy, declination (abbrev dec or δ) is one of the two coordinates of the Equatorial coordinate system, the other being either Right ascension (abbrev RA; symbol α) is the Astronomical term for one of the two Coordinates of a point on the Celestial sphere In Astronomy and Navigation, the celestial sphere is an imaginary rotating Sphere of "gigantic Radius "

Contents

Notable features

τ Boötis, a relatively Sun-like star, has the massive hot Jupiter τ Boötis Ab. Tau Boötis (τ Boo / τ Boötis is a Yellow-white dwarf approximately 51 Light-years away in the Constellation of Boötes. The Sun (Sol is the Star at the center of the Solar System. Hot Jupiters (also called roasters, epistellar jovians, pegasids or pegasean planets) are a class of Extrasolar planets whose Tau Boötis b, occasionally cataloged as Tau Boötis Ab, is an Extrasolar planet approximately 50 Light-years away around the primary star of It is the fourth extrasolar planet discovered and is one of the most studied. An extrasolar planet, or exoplanet, is a Planet beyond the Solar System, orbiting around other Stars As of September 2008 312

Boötes also hosts a large number of double stars suitable for viewing by amateur astronomers.

NGC 5466 is a loose globular cluster that can be observed with most telescopes. NGC 5466 is a class XII Globular cluster in the Boötes constellation. It was discovered by William Herschel on May 17, 1784. Sir Frederick William Herschel FRS KH ( 15 November 1738 – 25 August 1822) was a German -born British Events 1521 - Edward Stafford 3rd Duke of Buckingham, is executed for Treason. Year 1784 ( MDCCLXXXIV) was a Leap year starting on Thursday (link will display the full calendar of the Gregorian calendar (or a Leap year

The Boötes void, a large section of the universe devoid of galaxies, is located in the area of Boötes. The Boötes void is a tremendously large approximately spherically shaped nearly-empty region of space, devoid of galaxies. The Universe is defined as everything that Physically Exists: the entirety of Space and Time, all forms of Matter, Energy

Mythology

Including the fainter stars, Boötes appears to look like a large human figure, looking toward Ursa Major [1]. Ursa Major ( is a Constellation visible throughout the year in most of the northern hemisphere Exactly whom Boötes is supposed to represent is not clear. According to one version, he was a ploughman who drove the oxen in the constellation Ursa Major using his two dogs Chara and Asterion (from the constellation Canes Venatici). Ursa Major ( is a Constellation visible throughout the year in most of the northern hemisphere Canes Venatici ( Hunting dogs) is a small northern Constellation that was introduced by Johannes Hevelius in the 17th century The oxen were tied to the polar axis and so the action of Boötes kept the heavens in constant rotation.

Boötes was also supposed to have invented the plough. The plough ( American spelling plow; both plaʊ is a Tool used in Farming for initial cultivation of soil in preparation for sowing seed This is said to have greatly pleased Ceres, the goddess of agriculture who asked Jupiter to give Boötes a permanent fixture in the heavens as a reward for doing this. In Roman mythology, Jupiter was the king of the gods and the god of Sky and Thunder.

Another version portrays Boötes as a grape grower called Icarius, who one day invited the Roman god Bacchus, also called Dionysus, to inspect his vineyards. In Greek mythology, there were two people named Icarius, or Ikários (and another named Icarus) In Classical mythology, Dionysus or Dionysos (in Greek, Διόνυσος or Διώνυσος; associated with Roman Bacchus revealed the secret of wine making to Icarius, who was so impressed by this alcoholic beverage that he invited his friends round to sample it. Winemaking, or vinification, is the production of Wine, starting with selection of the Grapes and ending with bottling the finished wine Having never tasted wine before, they all drank too much and woke up the next morning with terrible hangovers; and they made the mistaken assumption that Icarius had tried to poison them. A hangover ( veisalgia) describes the sum of unpleasant physiological effects following heavy consumption of drugs particularly Alcoholic beverages The most commonly It was decided that Icarius should pay the price with his own life, and he was swiftly murdered in his sleep. Bacchus placed Icarius in the stars to honor him.

Following another reading the constellation is identified with Arcas, son of Zeus and Callisto. For the butterfly genus see Arcas (butterfly. In Pelasgian Mythology, Arcas (Ἀρκάς is the son of the god Zeus (zjuːs in Greek: nominative: Zeús /zdeús/ genitive: Diós; Modern Greek /'zefs/ in Greek mythology In Greek mythology, Callisto was a Nymph of Artemis. Transformed into a bear and set among the stars, she was the bear-mother of the Arcas was brought up by his maternal grandfather Lycaon, to whom one day Zeus went and had a meal. To verify that the guest was really the king of the gods, Lycaon killed his grandson and prepared a meal made from his flesh. Zeus noticed and became very angry, transforming Lycaon into a wolf and gave back life to his son.

In the meantime Callisto had been transformed into a she-bear, by Zeus' wife, Hera, who was angry at Zeus' infidelity. In the Olympian pantheon of classical Greek Mythology, Hera (ˈhɪərə or /ˈhɛrə/ Greek) or Here ( in Ionic and Homer When he was grown up, Arcas met with the she-bear and, since obviously he didn't recognize her as his mother, he began to chase Callisto. Callisto, followed by Arcas, sheltered herself in a temple, a sacred place whose profaners were convicted to death. To avoid such fate, Zeus decided to set them in the sky, Arcas as Boötes and Callisto as Ursa Major.

This is a rare version of the myth surrounding Ursa Major, as the myth usually holds that Arcas is transformed into a bear as well (becoming Ursa Minor), and in such versions Boötes has no part. Ursa Minor, and Ursa Major, are constellations whose identification only originated in later classical Greece, and in Rome, and as such Boötes kept separate associations dating from much earlier.

Boötes was considered to be Atlas by some ancient Greek legends, as well as those in other early mediterranean cultures, since it takes an appropriate position in the sky (its arms near the pole star, but its body standing on/near the ecliptic). In Greek mythology, Atlas (Eng /'æt ləs/ Gk Ἄτλας was the primordial Titan who supported the heavens Polaris (α UMi / α Ursae Minoris / Alpha Ursae Minoris commonly North(ern Star or Pole Star, and sometimes Lodestar The ecliptic is the apparent path that the Sun traces out in the sky during the year As such, together with earlier interpretations of other constellations in the zodiac sign of libra (i. Zodiac denotes an annual cycle of twelve stations along the Ecliptic, the apparent path of the sun across the heavens through the Constellations that divide the ecliptic Libra is the seventh Astrological sign in the Zodiac, originating from the constellation of Libra. e. of Draco (constellation), Ursa Major and Ursa Minor it may have formed the origin of the myth of the apples of the Hesperides, which forms part of The Twelve Labours of Herakles. Draco (ˈdreɪkoʊ Dragon) is a far northern Constellation that is circumpolar for many Northern hemisphere observers Ursa Major ( is a Constellation visible throughout the year in most of the northern hemisphere In Greek mythology, the Hesperides ( Greek:) are Nymphs who tend a blissful garden in a far western corner of the world located near the Atlas mountains The Twelve Labours of Hercules (Greek Δωδεκαθλος, dodekathlos) age a series of archaic episodes connected by a later continuous narrative concerning In Greek mythology, Heracles or Herakles ("glory of Hera " or

Graphic visualization

Diagram of an alternate way to connect the stars of the constellation Boötes.
Diagram of an alternate way to connect the stars of the constellation Boötes.

The stars of the constellation Boötes can be connected in an alternative way, which graphically shows the herdsman seated and smoking a pipe. A herder is a worker who lives a possibly semi- Nomadic life caring for various domestic Animals in places where these animals wander Pasture lands A pipe is a tool used for Smoking. The designs of pipes vary considerably but for the most part they are reusable and consist of a chamber or bowl in which the substance to [1]

The stars ε Boo, δ Boo, μ Boo, β Boo, γ Boo, ρ Boo, and σ Boo form the herdsman's head. Epsilon Boötis (ε Boo / ε Boötis is a star in the Constellation Boötes. Delta Boötis (δ Boo / δ Boötis is a Binary star in the Constellation Boötes. Mu Boötis (μ Boo / μ Boötis is a Triple star system in the Constellation Boötes. Beta Boötis (β Boo / β Boötis is a variable star in the Constellation Boötes. Gamma Boötis (γ Boo / γ Boötis is a Star in the Constellation Boötes. Rho Boötis (ρ Boo / ρ Boötis is a Binary star in the Constellation Boötes. Sigma Boötis (σ Boo / σ Boötis is a Star in the Constellation Boötes. In addition, the stars δ Boo, μ Boo, and β Boo may be seen to form a cap.

The stars γ Boo, λ Boo, θ Boo, and κ Boo form the herdsman's pipe. Lambda Boötis (λ Boo / λ Boötis is a Star in the Constellation Boötes. Theta Boötis (θ Boo / θ Boötis is a Star in the Constellation Boötes. Kappa Boötis (κ Boo / κ Boötis is a Star system in the Constellation Boötes. Star γ Boo is of the third magnitude and would be the herdsman's mouth.

Stars ε Boo, ζ Boo, and α Boo (Arcturus) form the herdsman's body. Zeta Boötis (ζ Boo / ζ Boötis is a bright speckle binary in the constellation of Boötes. |- bgcolor="#FFFAFA"| note (category variability || H and K emission vary Star ε Boo is of the third magnitude whereas Arcturus is of magnitude zero.

Stars α Boo, η Boo and υ Boo form the herdsman's leg, with η Boo being the knee. Eta Boötis (η Boo / η Boötis is a star in the Constellation Boötes. Upsilon Boötis (υ Boo / υ Boötis is a Star in the Constellation Boötes. Finally, stars υ Boo and τ Boo form the herdsman's foot. Tau Boötis (τ Boo / τ Boötis is a Yellow-white dwarf approximately 51 Light-years away in the Constellation of Boötes. Star η Boo is of the third magnitude.

Named Stars

Citations

  1. ^ H. A. Rey, The Stars — A New Way To See Them. Hans Augusto "HA" Rey ( September 16, 1898 – August 26, 1977) together with his wife Margret Rey, were the authors Enlarged World-Wide Edition. Houghton Mifflin, Boston, 1997. ISBN 0-395-24830-2.

References

External links


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