Winter constellations


\|	\| planets 8 planets of the solar system (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune) and their satellites.	\| sun The Sun is in 2/3 of the galactic center towards the edge, at a distance of 30 000 light years of the center. The Sun moves in a speed of 230 km/s around this galactic center during its revolution which it makes in 250 million years.	\| galaxies The Galaxy, it is the name datum in our galaxy, it is an enormous spiral wheel of stars, a diameter of 100 000 light years. What appears of the Earth, it is a white continuous band called the Milky Way.	\| bigbang There is 15 billion years a tremendous explosion of light gives birth to the space, in time, in the matter, a chaos burning with an inconceivable heat, a formless porridge which is going to swell, to extend in all the directions and to cool quite slowly.	\| quotations Some quotations of big men (Aristote, Galilee, Newton, Platon, Laplace, Einstein).	\| links Some external links concerning the astronomy.	\|
\|	\| dwarf planets According to the definition which was approved on August 24th, 2006, during the 26th General assembly of the UAI ( International Astronomical Union), three bodies reach the status of dwarfish planet: Pluto, eris, and Ceres. Others objets should soon join this nomenclature.	\| solar system The solar system is really much more complex if we take into account all the objects being a part of the system. A considerable number of objects is in the belt of Kuiper and still beyond in the cloud of Oort.	\| galaxy groups Heap of galaxies are the biggest structures of the Universe. They are constituted by hundreds of galaxies connected together by their own gravitational attraction. Between the galaxies we find some material constituted by warm gas there, forming a plasma, the temperature of which reaches 10 to 100 million degrees.	\| comets Besides planets, satellites and asteroids, the solar system contains comets (hair in Greek). The roaming comets originate in the depths of the space in several lights years. The number of periodic comets is of the order of 2000.	\| biographies Some biographies, Einstein, Baade, Lyot, Hale, Hubble, Shapley, Laplace, Maxwell, Newton, Herschel, Kepler, Galilee, Aristotle...	\| glossary Definition of certain words or expressions used on this site in link with the astronomy.	\|
\| articles Christian's articles in link with the astronomy (history of the Earth, the electron, the neutrons stars, the rings of Saturn, the particles, the threat of asteroids, journey in the universe up to the atom)...	\| exoplanets Exoplanets are situated by definition outside our solar system. Seen the large number of existing galaxies and the large number of stars which they contain, the search for these exo-planets or extra solar planets, is unlimited.	\| constellations A constellation is a group of stars of the sky which enough close relations looked the appearance imagination of a figure onto the sky.	\| nebulas Of the Latin 'nebula' which wants to say cloud, clouds of gas and dusts in the middle of stars, nebulas are at the same moment active crèches and cemeteries of stars. These magnificence of the sky are lit by the stars which they contain or by stars situated behind them.	\| telescopes A telescope is constituted by a mirror which concentrates the light resulting from the observed celestial body and from the objective which supplies an enlarged image with it. The increase and the luminosity are proportional on the surface of the mirror. The presence of the ground atmosphere limits the performances of a telescope. It is to mitigate this inconvenience that spatial telescopes were placed in the space.	\| bibliographies Some interesting books in link with the astronomy.	\| faq Some simple answers concerning the universe which surrounds us.	\|
\| asteroids Numerous small rocky called bodies asteroids are present in the solar system, an important part of them circulate in a ring, between the orbit of Mars and that of Jupiter in 2 to 4 UA.	\| rings The rings of Saturn are one of more beautiful and of the most surprising spectacles of the solar system. That is why on July 1st, 2004, the spaceship Cassini-Huygens reduced its speed to be captured by the gravity of Saturn to enter in orbit with this one.	\| stars A star is a celestial body similar to the Sun, which shines thanks to nuclear reactions which occur in its center.	\| multiverse The universe is an expanding cosmic bubble. This bubble creates a new bubble which produces it the others etc.... Quantities of the other universes which give birth to the other universes, it is an interesting idea but which remain at the moment very speculative.	\| space probes These instruments that are space probes, perceive in the detail the forms and the composition of objects of the distant regions and offer us exceptional sights of an unequalled precision.	\| elements The most usual and practical presentation of the diverse chemical elements is the periodic board of elements also called Table of Mendeleyev. The atoms which have the same number of protons but a number different from neutrons are called isotopes.	\| aurora A polar aurora called aurora borealis in the north hemisphere and the aurora australis in the southern hemisphere, is a brilliant phenomenon characterized by sorts of veils extremely colored in the night-sky.	\|

The universe is all worked up

Winter constellations

automatic translator
spring constellations	autumn constellations	not visible constellations
summer constellations	winter constellations	constellations of the zodiac

The winter sky is rich in brilliant stars, it is especially characterized by the equatorial constellation of Orion the most brilliant stars of which form a big rectangle containing three aligned and moved closer stars. Orion will be of a precious asset in the search for the boreal constellations. The orientation in the winter sky is facilitated by the figure called winter France, summits of which are stars Capella, Aldebaran, Rigel, Sirius, Procyon,	as well as Beaver and Pollux. Less popular but so practical to turn, the Winter triangle is formed by Procyon, Betelgeuse and Sirius. By leaving Sirius southward, along the Milky Way, we find the constellations of Sails (Vela) and the Hull (Carina). Canopus (x Carinae) is the second star of the sky by its brightness after Sirius, and it was often used for the aviation during the night flights. Since Rigel, in Orion, we can observe the	meanders of the constellation Eridan until brilliant Achernar. By agreement the names of the stars of a constellation are prefixed by a Greek letter followed by the first 3 letters of the constellation, the example : α Ori, β Ori, ... (Greek letters : α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ χ ψ ω).

Orion		category : constellations

On maps, Orion the Hunter carries a belt (the belt of Orion). The belt of Orion is represented by three stars in the center of the image: Alnitak (ζ Ori of magnitude 1,76 to 817,44 AL), Alnilam (ε Ori of magnitude 1,71 to 1342,22 AL and Mintaka (δ Ori of magnitude 2,27 to 916,18 AL). Three other very brilliant stars are a part of the constellation of	Orion, they are Betelgeuse (α Ori of magnitude 0,47 to 427,47 AL), Rigel (β Ori of magnitude 0,20 to 772,89 AL) and Bellatrix (γ Ori of magnitude 1,66 to 243,04 AL). Meissa (λ Ori of magnitude 3,41 to 1055,52 AL) is situated on the cheekbone of Orion whereas Saiph (κ Ori of magnitude 2,29 - 771,59) is situated on the knee on the ground of Orion.	According to the legend, the hunter Orion was accompanied with two dogs (winter constellations - retrievers). By prolonging northward the line of the belt of Orion, is the star Aldebaran in the orange-colored brightness, in constellations of the Taurus ( Taurus).





The Retrievers		category : constellations

We find under the Great Bear, the weak constellation of the Retrievers the main star of which has for name Cor Caroli (α CVn of magnitude 2,91 to 110,19 AL)	and the star which is situated under the eye of the second dog is called Chara (β CVn of magnitude 4,26 to 27,3 AL). In the region of Retrievers we find numerous	distant galaxies of dimensions and forms varied as for example, Messier 3 and 101.





The Coachman		category : constellations

In the North of Orion and east of Perseus, shines one of the most brilliant stars with the wintry sky: Capella of the Coachman (α Aur of magnitude 0,10 to 42,20 AL). The Coachman is a very vast constellation having a characteristic shape of the Pentagon. As for its main star, Capella,	called also Goat, it is a giant accompanied with a spectroscopic binary. We find in the Coachman of numerous heap opened as Messier 36, 37 and 38. Other stars of the constellation of the Coachman are on the left shoulder of the Coachman, Menkalinan (β Aur of magnitude 1,92 to	82,11 AL), on the right shoulder, (θ Aur of magnitude 2,67 to 173,21 AL), on the left knee of the Coachman, (ι Aur of magnitude 3,71 to 787,83 AL), on the stomach of the animal (ζ Aur of magnitude 3,71 to 787,83 AL).





Gemini		category : constellations

The direction of the Gemini will be indicated by the stars Rigel and Betelgeuse of the constellation of Orion. Indeed, if we draw an imaginary line between these two stars and if we pursue this line towards the North is, we shall reach then easily the Gemini, the very vast constellation in the form of rectangle. Both more brilliant stud with the constellation is Pollux on the head of the Gemini of left (β Gem of magnitude 1,18	to 33,72 AL) and Beaver on the head of the Gemini of right (α Gem of magnitude 1,60 to 51,55 AL). This last one is in fact a system of three stars whereas Pollux is a giant. We also find in the Gemini, a beautiful opened heap. Messier 35. Other stars of the constellation of Gemini are Wasat on the stomach of the Gemini of left (δ Gem of magnitude 3,52 to 58,82 AL), Mekbuda on the left knee of the Gemini of left (ζ Gem of magnitude 4,03	to 1169,03 AL), Alhena on the left foot of the Gemini of left (γ Gem of magnitude 1,95 to 104,81 AL), Propus on the left heel of the Gemini of right (π Gem of magnitude 3,33 to 349,21 AL) Tejat under the dress of the Gemini of right (μ Gem of magnitude 2,89 to 231,81 AL), Mebsuta on the dress of the Gemini of right (ε Gem of magnitude 3,08 to 903,49 AL).





Cancer		category : constellations

The constellation of the Cancer is situated not far from the Gemini, shines the small constellation of the Cancer. It is formed by six stars. These stars are of weak brilliancy. We find in this constellation a magnificent opened heap Messier 67. The main stars of this constellation are	Acubens on the right crowbar of the Cancer (α Can of magnitude 34,28 to 173,58 AL) and β Can on the right leg of magnitude 3,55 to 290,44 AL. Other stars of the constellation are Asellus Australis on the right eye (δ Can of magnitude 3,96 to 136,07 AL), Asellus Borealis on the left	eye (γ Can of magnitude 4,68 to 158,48 AL), on the left crowbar of the Cancer there is (ι Can of magnitude 4,05 to 298,14 AL), on the left leg turns out (χ Can of magnitude 5,15 to 59,12 AL).





Related subjects		category : constellations

Autumn constellations	Galaxies
Summer constellations	Nebulous
Winter constellations	Stars
Spring constellations
Constellations of the zodiac
Constellations not visible


\|	\| planets 8 planets of the solar system (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune) and their satellites.	\| sun The Sun is in 2/3 of the galactic center towards the edge, at a distance of 30 000 light years of the center. The Sun moves in a speed of 230 km/s around this galactic center during its revolution which it makes in 250 million years.	\| galaxies The Galaxy, it is the name datum in our galaxy, it is an enormous spiral wheel of stars, a diameter of 100 000 light years. What appears of the Earth, it is a white continuous band called the Milky Way.	\| bigbang There is 15 billion years a tremendous explosion of light gives birth to the space, in time, in the matter, a chaos burning with an inconceivable heat, a formless porridge which is going to swell, to extend in all the directions and to cool quite slowly.	\| quotations Some quotations of big men (Aristote, Galilee, Newton, Platon, Laplace, Einstein).	\| links Some external links concerning the astronomy.	\|
\|	\| dwarf planets According to the definition which was approved on August 24th, 2006, during the 26th General assembly of the UAI ( International Astronomical Union), three bodies reach the status of dwarfish planet: Pluto, eris, and Ceres. Others objets should soon join this nomenclature.	\| solar system The solar system is really much more complex if we take into account all the objects being a part of the system. A considerable number of objects is in the belt of Kuiper and still beyond in the cloud of Oort.	\| galaxy groups Heap of galaxies are the biggest structures of the Universe. They are constituted by hundreds of galaxies connected together by their own gravitational attraction. Between the galaxies we find some material constituted by warm gas there, forming a plasma, the temperature of which reaches 10 to 100 million degrees.	\| comets Besides planets, satellites and asteroids, the solar system contains comets (hair in Greek). The roaming comets originate in the depths of the space in several lights years. The number of periodic comets is of the order of 2000.	\| biographies Some biographies, Einstein, Baade, Lyot, Hale, Hubble, Shapley, Laplace, Maxwell, Newton, Herschel, Kepler, Galilee, Aristotle...	\| glossary Definition of certain words or expressions used on this site in link with the astronomy.	\|
\| articles Christian's articles in link with the astronomy (history of the Earth, the electron, the neutrons stars, the rings of Saturn, the particles, the threat of asteroids, journey in the universe up to the atom)...	\| exoplanets Exoplanets are situated by definition outside our solar system. Seen the large number of existing galaxies and the large number of stars which they contain, the search for these exo-planets or extra solar planets, is unlimited.	\| constellations A constellation is a group of stars of the sky which enough close relations looked the appearance imagination of a figure onto the sky.	\| nebulas Of the Latin 'nebula' which wants to say cloud, clouds of gas and dusts in the middle of stars, nebulas are at the same moment active crèches and cemeteries of stars. These magnificence of the sky are lit by the stars which they contain or by stars situated behind them.	\| telescopes A telescope is constituted by a mirror which concentrates the light resulting from the observed celestial body and from the objective which supplies an enlarged image with it. The increase and the luminosity are proportional on the surface of the mirror. The presence of the ground atmosphere limits the performances of a telescope. It is to mitigate this inconvenience that spatial telescopes were placed in the space.	\| bibliographies Some interesting books in link with the astronomy.	\| faq Some simple answers concerning the universe which surrounds us.	\|
\| asteroids Numerous small rocky called bodies asteroids are present in the solar system, an important part of them circulate in a ring, between the orbit of Mars and that of Jupiter in 2 to 4 UA.	\| rings The rings of Saturn are one of more beautiful and of the most surprising spectacles of the solar system. That is why on July 1st, 2004, the spaceship Cassini-Huygens reduced its speed to be captured by the gravity of Saturn to enter in orbit with this one.	\| stars A star is a celestial body similar to the Sun, which shines thanks to nuclear reactions which occur in its center.	\| multiverse The universe is an expanding cosmic bubble. This bubble creates a new bubble which produces it the others etc.... Quantities of the other universes which give birth to the other universes, it is an interesting idea but which remain at the moment very speculative.	\| space probes These instruments that are space probes, perceive in the detail the forms and the composition of objects of the distant regions and offer us exceptional sights of an unequalled precision.	\| elements The most usual and practical presentation of the diverse chemical elements is the periodic board of elements also called Table of Mendeleyev. The atoms which have the same number of protons but a number different from neutrons are called isotopes.	\| aurora A polar aurora called aurora borealis in the north hemisphere and the aurora australis in the southern hemisphere, is a brilliant phenomenon characterized by sorts of veils extremely colored in the night-sky.	\|

The universe is all worked up

Astronomy - october 15th 2007