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| List of stars in Lacerta | |
| Abbreviation: | Lac |
| Genitive: | Lacertae |
| Symbology: | the Lizard |
| Right ascension: | 22. This is the list of notable Stars in the Constellation Lacerta, 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 Lizards are a large and widespread group of Reptiles of the order Squamata, with nearly 5000 species and ranging across all continents except Right ascension (abbrev RA; symbol α) is the Astronomical term for one of the two Coordinates of a point on the Celestial sphere 5 h |
| Declination: | +45° |
| Area: | 201 sq. In Astronomy, declination (abbrev dec or δ) is one of the two coordinates of the Equatorial coordinate system, the other being either deg. (68th) |
| Main stars: | 5 |
| Bayer/Flamsteed stars: | 17 |
| Stars known to have planets: | 1 |
| Bright stars: | 0 |
| Nearby stars: | 1 |
| Brightest star: | α Lacertae (3. 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 8m) |
| Nearest star: | EV Lacertae (16. 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 5 ly) |
| Messier objects: | 0 |
| Meteor showers: | |
| Bordering constellations: | Andromeda Cassiopeia Cepheus Cygnus Pegasus |
| Visible at latitudes between +90° and −90° 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 Andromeda ( is a Constellation named for the princess Andromeda ( Greek Ανδρομέδη = guardian of the men) a character in Cassiopeia ( colloquially /ˌkæsiˈoʊpiə/ is a northern Constellation which Greek mythology considered to represent the vain queen Cassiopeia who boasted Cepheus ( or) is a northern Constellation named after Cepheus King of Aethiopia in Greek mythology, and is considered to represent a king Cygnus (ˈsɪgnəs Swan, Κύκνος) is a northern Constellation. Pegasus (ˈpɛɡəsəs is a northern Constellation, named after the mythological winged horse Pegasus. m. ) during the month of October |
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- For the biological genus of lizards, see Lacerta (genus). Lacerta is a Genus of Lizards of the family Lacertidae. Classification Genus Lacerta
Lacerta (pronounced /ləˈsɝtə/, Latin: lizard), is one of the 88 official constellations acknowledged by the International Astronomical Union. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. Lizards are a large and widespread group of Reptiles of the order Squamata, with nearly 5000 species and ranging across all continents except 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 It is not among Ptolemy's 48 ancient constellations. Claudius Ptolemaeus ( Greek: Klaúdios Ptolemaîos; after 83 &ndash ca Instead it was created ca. 1687 by the astronomer Johannes Hevelius. Johannes Hevelius ( Latin) also called Johannes Hewel Johann Hewelke Johannes Höwelcke in German, or Jan Heweliusz (in Polish) It doesn't contain any really bright stars, no Messier object, no galaxy brighter than 14. Charles Messier ( June 26, 1730 &ndash April 12, 1817) was a French astronomer most notable for publishing an A galaxy is a massive gravitationally bound system consisting of Stars an Interstellar medium of gas and dust, and Dark matter 5m, no globular clusters and not a single named star. 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 A globular cluster is a spherical collection of Stars that orbits a galactic core as a Satellite. Correspondingly it is rather difficult to find. The northern part lies on the Milky Way. The Milky Way (a translation of the Latin Via Lactea, in turn derived from the Greek Γαλαξίας (Galaxias sometimes referred to simply Lacerta is located between Cygnus, Cassiopeia and Andromeda on the northern celestial sphere. Cygnus (ˈsɪgnəs Swan, Κύκνος) is a northern Constellation. Cassiopeia ( colloquially /ˌkæsiˈoʊpiə/ is a northern Constellation which Greek mythology considered to represent the vain queen Cassiopeia who boasted Andromeda ( is a Constellation named for the princess Andromeda ( Greek Ανδρομέδη = guardian of the men) a character in In Astronomy and Navigation, the celestial sphere is an imaginary rotating Sphere of "gigantic Radius " It looks like a 'little Cassiopeia' as it is W shaped as well.
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Notable features
- α Lac: this main sequence star of spectral type A1 V has an apparent magnitude of merely 3. The main sequence is the name for a continuous and distinctive band of stars that appear on a plot of stellar color versus brightness In Astronomy, stellar classification is a classification of Stars based initially on photospheric temperature and its associated Spectral characteristics 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 77m. There are no other stars brighter than fourth magnitude. α Lac is an optical double star. Double Star is a Science fiction Novel by Robert A Heinlein, first serialized in Astounding Science Fiction
- Roe 47: a multiple star consisting of five components (magnitudes 5. 8, 9. 8, 10. 1, 9. 4, 9. 8).
Notable deep sky objects
- NGC 7243: an open star cluster of approximately 6. NGC 7243, also Caldwell 16, is an Open cluster and Caldwell object in the constellation Lacerta. An open cluster is a group of up to a few thousand Stars that were formed from the same Giant molecular cloud, and are still loosely gravitationally 4m.
- BL Lacertae: it was discovered quite early and first thought to be a star and therefore given a variable star designation. BL Lacertae or BL Lac is a highly variable extragalactic AGN (active galactic nucleus or Active galaxy) Variable stars are named using a variation on the Bayer designation format of an identifying label (as described below combined with the Latin genitive However, in reality it is the core of a galaxy. It lent its name to a whole type of celestial objects, the BL Lacertae objects (a subtype of blazar. A BL Lacertae object or BL Lac object is a type of Active galaxy with an Active galactic nucleus (AGN and is named after its prototype BL Lacertae A blazar is a very compact and highly variable energy source associated with a presumed Supermassive black hole at the center of a Host galaxy. ) The object varies irregularly between magnitudes 14 and 17 over a few days.
- ADS 16402 is a binary star system in Lacerta, around which a planet orbits with some unusual properties. ADS 16402 is a binary Star system, composed of two sun-like Stars The two stars are separated by 1500 AUs A binary star is a Star system consisting of two Stars orbiting around their Center of mass. An extrasolar planet, or exoplanet, is a Planet beyond the Solar System, orbiting around other Stars As of September 2008 312 [1] The Jupiter-sized planet exhibits an unexpectedly low density, about the same as cork. Cork cambium is a tissue found in many vascular plants as part of the Periderm. This planet is dubbed HAT P-1.
Mythology
Before Johannes Hevelius adopted the name Lacerta several other names had proposed for this part of the sky, among them Sceptrum et Manus Iustitiae (= Sceptre and the hand of Justice) and Frederick's Honors. Sceptrum et Manus Iustitiae ( Latin for scepter and hand of justice) was a Constellation created by Augustin Royer in 1679 to honor Frederici Honores or Honores Friderici or Gloria Frederici ( Latin for Glory of Frederick) was a Constellation created by Johann Being a modern constellation there is no mythology surrounding Lacerta.
The same constellation was used by the Chumash as Lizard and is included in multiple stories. This constellation was supposed as one of many constellations encountered as one went to the Land-of-the-Dead.
Citations
References
- Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. ISBN 978-0007251209. Princeton University Press, Princeton. ISBN 978-0691135564.
External links
- The Deep Photographic Guide to the Constellations: Lacerta
- Star Tales – Lacerta
- Weasner's Mighty ETX Site, GO TO LACERTA (a constellation guide for amateur astronomers)
Dictionary
Lacerta
-proper noun
- (astronomy) An inconspicuous autumn constellation of the northern sky, said to resemble a lizard. It lies between the constellations of Cygnus and Andromeda.
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