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Antlia appears as a line with a corner in the middle pointing up

Antlia Constellation Map

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Légende : The constellation Antlia along with its bright stars and surrounding constellations. Antlia is surrounded by (going clockwise from the top): Hydra, Pyxis, Vela and Centaurus. Antlia is a southern constellation that is visible at some point in the year from the whole southern hemisphere as well as equatorial and some temperate regions of the northern hemisphere. The constellation is best viewed in the evenings in the northern hemisphere spring and southern hemisphere autumn. The y-axis of this diagram is in degrees of declination with north as up and the x-axis is in hours of right ascension with east to the left. The sizes of the stars marked here relate to the star's apparent magnitude, a measure of its apparent brightness. The larger dots represent brighter stars. The Greek letters mark the brightest stars in the constellation. These are ranked by brightness with the brightest star being labeled alpha, the second brightest beta, etc., although this ordering is not always followed exactly. The dotted boundary lines mark the IAU's boundaries of the constellations and the solid green lines mark one of the common forms used to represent the figures of the constellations. Neither the constellation boundaries, nor the lines joining the stars appear on the sky.
Crédit : Adapted by the IAU Office of Astronomy for Education from the original by IAU/Sky & Telescope
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Termes du glossaire: Magnitude apparente , Coordonnées célestes , Constellation , Déclinaison , Ascension droite (AD)
Catégories : Astronomie à l'œil nu

Licence : Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Icônes

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Les étoiles brillantes d'Andromède forment un Y. Pégase en bas à droite. Au centre se trouve M31, marquée d'une ellipse rouge.

Carte de la constellation d'Andromède

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Légende : La constellation d'Andromède montrant ses étoiles brillantes et les constellations environnantes. Andromède est entourée (dans le sens des aiguilles d'une montre à partir du haut) de Cassiopée, du Lézard, de Pégase, des Poissons, du Bélier, du Triangle et de Persée. L'étoile la plus brillante d'Andromède (Alpheratz) se trouve dans la partie inférieure de la constellation. Avec trois étoiles de Pégase, elle forme l'astérisme connu sous le nom de "Grand carré de Pégase". Les deux autres étoiles brillantes de la constellation (Mirach et Almach) forment une ligne qui s'étend au nord-est d'Alpheratz. Andromède est une constellation septentrionale et est surtout visible le soir, à l'automne dans l'hémisphère nord. Elle est visible depuis tout l'hémisphère nord et la plupart des régions tempérées de l'hémisphère sud, mais n'est pas visible depuis les régions antarctiques et subantarctiques. L'objet le plus célèbre d'Andromède, la galaxie d'Andromède, est marqué ici d'une ellipse rouge et de son numéro de catalogue Messier M31. Le cercle jaune à gauche indique la position de l'amas ouvert NGC 752 et le cercle vert à droite indique NGC 7662 (la nébuleuse de la boule de neige bleue), une nébuleuse planétaire. L'axe des y de ce diagramme est en degrés de déclinaison avec le nord en haut et l'axe des x est en heures d'ascension droite avec l'est à gauche. La taille des étoiles marquées ici correspond à la magnitude apparente de l'étoile, une mesure de sa luminosité apparente. Les points les plus gros représentent les étoiles les plus brillantes. Les lettres grecques indiquent les étoiles les plus brillantes de la constellation. Elles sont classées par ordre de luminosité, l'étoile la plus brillante étant étiquetée alpha, la deuxième plus brillante bêta, etc., bien que cet ordre ne soit pas toujours respecté à la lettre. Les lignes pointillées marquent les délimitations des constellations selon l'UAI et les lignes vertes pleines marquent l'une des formes couramment utilisées pour représenter les figures des constellations. Ni les limites des constellations, ni les lignes reliant les étoiles n'apparaissent sur le ciel.
Crédit : Adapté par le Bureau de l'astronomie pour l'éducation de l'AIU à partir de l'original de l'AIU/Sky & Telescope
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Termes du glossaire: Andromède , Galaxie d'Andromède , Magnitude apparente , Constellation , Déclinaison , Nébuleuse planétaire , Ascension droite (AD) , Amas ouvert
Catégories : Astronomie à l'œil nu

Licence : Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Icônes

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Lyra resembles a north-south parallelogram with a triangle joining its north west corner. Vega is one corner of that triangle

Lyra Constellation Map

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Légende : The constellation Lyra with its bright stars and surrounding constellations. Lyra is surrounded by (going clockwise from the top): Draco, Hercules, Vulpecula and Cygnus. Lyra is dominated by its brightest star Vega which is used to define the zero point of one of the most commonly used magnitude scales of stellar brightness. Vega forms one vertex of the prominent Summer Triangle asterism that is visible in northern hemisphere summer evenings. Lyra is a northern constellation and thus is visible at some point in the year throughout the northern hemisphere. The whole constellation is also visible from all equatorial and some temperate regions of the southern hemisphere. Parts of the constellation are visible from the remaining southern temperate areas. Lyra is best viewed in the evenings in the northern hemisphere summer and southern hemisphere winter. The famous planetary nebula M57, commonly known as the Ring Nebula, lies in Lyra. It is marked here with a green circle superimposed on a plus sign. The globular cluster M56 also lies in Lyra and is marked here with a yellow circle with a plus sign superimposed on it. The y-axis of this diagram is in degrees of declination with north as up and the x-axis is in hours of right ascension with east to the left. The sizes of the stars marked here relate to the star's apparent magnitude, a measure of its apparent brightness. The larger dots represent brighter stars. The Greek letters mark the brightest stars in the constellation. These are ranked by brightness with the brightest star being labeled alpha, the second brightest beta, etc., although this ordering is not always followed exactly. The dotted boundary lines mark the IAU's boundaries of the constellations and the solid green lines mark one of the common forms used to represent the figures of the constellations. Neither the constellation boundaries, nor the lines joining the stars appear on the sky.
Crédit : Adapted by the IAU Office of Astronomy for Education from the original by the IAU and Sky & Telescope
Lien du crédit

Termes du glossaire: Magnitude apparente , Coordonnées célestes , Constellation , Déclinaison , Amas globulaire , Nébuleuse planétaire , Ascension droite (AD) , Astérisme
Catégories : Astronomie à l'œil nu

Licence : Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Creative Commons (CC) Attribution 4.0 International (CC BY 4.0) Icônes

Fichier ( image 81.99 kB)
Fichier PDF (PDF file 160.41 kB)

Columba has no real structure with three lines radiating out from a central point.

Columba Constellation Map

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Légende : The constellation Columba with its bright stars and surrounding constellations. Columba is surrounded by (going clockwise from the top): Lepus, Caelum, Pictor, Puppis and Canis Major. Columba is a southern constellation and thus is visible to the whole southern hemisphere at some point in the year. The whole constellation is also visible from equatorial and some temperate regions of the northern hemisphere. The globular cluster NGC 1851 lies in Columba and is marked here with a yellow circle with a plus sign superimposed on it. The y-axis of this diagram is in degrees of declination with north as up and the x-axis is in hours of right ascension with east to the left. The sizes of the stars marked here relate to the star's apparent magnitude, a measure of its apparent brightness. The larger dots represent brighter stars. The Greek letters mark the brightest stars in the constellation. These are ranked by brightness with the brightest star being labeled alpha, the second brightest beta, etc., although this ordering is not always followed exactly. The dotted boundary lines mark the IAU's boundaries of the constellations and the solid green lines mark one of the common forms used to represent the figures of the constellations. Neither the constellation boundaries, nor the lines joining the stars appear on the sky.
Crédit : Adapted by the IAU Office of Astronomy for Education from the original by the IAU and Sky & Telescope
Lien du crédit

Corona Borealis appears as a u-shape tilted slightly to the left

Corona Borealis Constellation Map

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Légende : The constellation Corona Borealis with its bright stars and surrounding constellations. Corona Borealis is surrounded by (going clockwise from the top): Boötes, Serpens Caput and Hercules. Corona Borealis is a northern constellation and thus the constellation is visible from the whole northern hemisphere at some point in the year. It whole constellation is also visible from equatorial and most temperate regions of the southern hemisphere. The constellation is best viewed in the evening in the northern hemisphere summer and southern hemisphere winter. The y-axis of this diagram is in degrees of declination with north as up and the x-axis is in hours of right ascension with east to the left. The sizes of the stars marked here relate to the star's apparent magnitude, a measure of its apparent brightness. The larger dots represent brighter stars. The Greek letters mark the brightest stars in the constellation. These are ranked by brightness with the brightest star being labeled alpha, the second brightest beta, etc., although this ordering is not always followed exactly. The dotted boundary lines mark the IAU's boundaries of the constellations and the solid green lines mark one of the common forms used to represent the figures of the constellations. Neither the constellation boundaries, nor the lines joining the stars appear on the sky.
Crédit : Adapted by the IAU Office of Astronomy for Education from the original by the IAU and Sky & Telescope
Lien du crédit

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Le Bureau de l'astronomie pour l'éducation est hébergé par la Maison de l'astronomie sur le campus de l'Institut Max Planck d'astronomie à Heidelberg. Le Bureau de l'astronomie pour l'éducation est un bureau de l'Union Astronomique Internationale, avec un financement important des Fondations Klaus Tschira et Carl Zeiss. Les colloques Shaw-IAU sur l'astronomie pour l'éducation sont financés par la Fondation Shaw Prize.