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Asterisms

Asterisms are sub- or supersets of constellations which build a constellation itself, or a group of stars, physically related or not. Best kown is the Big Dipper as a part of the Great Bear. But there are more than just this one. Below you find the:

Table of Asterisms:

Beehive	Located in the constellationCancer. It is anopen star cluster, which is also calledPraesepe orM44 and faintlyvisible to the naked eye. With the starsgamma Can anddelta Can it forms anotherasterisms calledthe Asses and the Manger.
Belt of Orion	is being formed by the starsdelta Ori, epsilon Ori andzeta Ori; in Latin Amerika it is called the "Three Marys".
Bier	is being built by the four starsalpha UMa, beta UMa,gamma UMa anddelta UMa.
Big Dipper	most famous asterism. Formed by the following Stars of the GreatBearalpha UMa, beta UMa, gamma UMa, delta UMa, epsilon UMa, zetaUMa andeta UMa, it is often called "Wain" (Wagon) or"Charles's Wain" because of its resemblance with it when the Dipper handle is thought to be the wagon tongue.
Bull of Poniatowski	A T-shaped asterism just east ofgamma Oph; it is formedby the stars66 Oph, 67 Oph, 68 Oph and 70 Oph
Circlet	the western fish; the circlet is formed bygamma Psc, b Psc,theta Psc, iota Psc, 19 Psc, lambda Psc andkappa Psc.
Coalsack	Actually this is not a true asterism, but a dark patch on theMilky Way, in the constellationCrux. By the African Bushmen it was called "Old Bag".
Frederick's Glory	is formed byiota And,kappa And,lambda Andandpsi And
Guardians of the Pole	justbeta UMi andgamma UMi
Head of Cetus	presented byalpha Cet,gamma Cet,xi_2 Cet,mu Cet andlambda Cet
Heavenly G	nine bright stars forming a G-shaped group. Seven of these starsare of 1st magnitude. In order they are: Aldebaran (alpha Tau),Capella (alpha Aur), Castor (alpha Gem), Pollux (betaGem), Procyon (alpha CMi), Sirius (alpha CMa), Rigel(beta Ori), Bellatrix (gamma Ori) and Betelgeuse (alpha Ori)
Hyades	open cluster; V-shaped group superposed onalpha Tau,gamma Tau,delta Tau andepsilon Tau
Hydra Head	build bydelta Hya,epsilon Hya,zeta Hya,eta Hya,rho Hya andsigma Hya
Job's Coffin	formed by the four starsalpha Del,beta Del,gamma Del anddelta Del
Keystone	is formed by theepsilon Her,zeta Her,eta Herandpi Her
Kids	are calledepsilon Aur,zeta Aur andeta Aur
Lozenge	build by the four starsbeta Dra,gamma Dra,xi Dra andnu Dra
Milk Dipper	The following five members of the constallationSagittarius can beinterpreted as an inverted dipper in the Milky Way:zeta Sgr,tau Sgr,sigma Sgr,phi Sgr andlambda Sgr.This asterism is also known asThe Teapot.
Northern Cross	is formed by the leading stars of the constellationCygnus:alpha Cyg,beta Cyg,gamma Cyg,delta Cyg andepsilon Cyg
Northern Fly	This is a small triangle over the rear ofAries
Pleiades	Located in the constellationTaurus.This open star cluster is one of the Messier objects, M45. It alsoknown asSeven Sisters or, in Latin America theSeven Little Goats
Segment of Perseus	the starseta Per,gamma Per,alpha Per,delta Per,epsilon Per andzeta Per forming anarc.
Sickle	formed byalpha Leo,eta Leo,gamma Leo,zeta Leo,mu Leo andepsilon Leo
Square of Pegasus	At the edges of that square you findalpa Peg,betaPeg,gamma Peg andalpha And
Sword of Orion	theta Ori andiota Ori; between them the famousOrion Nebula (M42) is located.
Venus Mirror	also onOrion; thebelt stars (delta Ori,epsilon Ori andzeta Ori),the sword andeta Ori build up this asterism. The sword forms thehandle of the diamond-shaped mirror.
Y of Aquarius	also calledWater Jar; the Y is build bygamma Aqr,eta Aqr,pi Aqr andzeta Aqr

C. Kronberg --- 97/03/09 --- smil

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