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Lacerta, the Lizard, is one of the 88 official constellations acknowledged by the International Astronomical Union. It is not among Ptolemy'sThis article is about the geographer and astronomer Ptolemy. For Alexander the Great's general, see Ptolemy I of Egypt. For others, see Ptolemy (disambiguation). Claudius Ptolemaeus (Greek: Klaudios Ptolemaios; A. circa 85 circa 165), known in English as 48 ancient constellations. Instead it was created ca. 1687 by the astronomer Johannes HeveliusJohannes Hevelius or Johann Hewelke or Johannes Hewel (German) or Jan Heweliusz (Polish) ( January 28, 1611- January 28, 1687) was an astronomer; called the founder of lunar topography''. He was born in Gdansk, Poland in 1611 to family of wealthy brewing. It doesn't contain any really bright stars, no MessierCharles Messier ( 1730- 06-26 1817- 04-12) was a French astronomer who in 1774 published a catalogue of 45 deep sky objects such as nebulae and star clusters. The purpose of the catalogue was to help comet hunters (like himself) and other naked-eye observ object, no galaxy brighter than 14.5 m, no globular clusters and not a single named star. Correspondingly it is rather difficult to find. The northern part lies on the Milky WayThis article is about the galaxy called the Milky Way. For the candy bar of the same name, see Milky Way candy bar. The Milky Way (a translation of the Latin Via Lactea in turn derived from the Greek Galaxia gala, galactos means "milk")) is a hazy band of. Lacerta is located between Cygnus, Cassiopeia and Andromeda on the northern celestial sphere.

1 Notable features

• BL Lacertae: it was discovered quite early and first thought to be a star and therefore named like variable stars. However, in reality it is represents the core of a galaxy. It lent its name to a whole type of celestial objects, the BL Lacertae objects or blazars.
• α Lac: this main sequence star of spectral type A1 V has an apparent magnitude of merely 3.77m. There are no other stars brighter than fourth magnitude. α Lac is an optical double star
• Roe 47: a multiple star consisting of five components (magnitudes 6, 10, 10, 10, 9.5, 10.5),