Have you ever lost in a foreign city or state? The chances are you two things to avoid: a map and some signs. In much the same way, these items can help you find your way to the starry sky at any time of year. Fortunately, in addition to the seasonal star charts here, the sky gives us two big signs. Each seasonal description talks about the Big Dipper - a group of seven bright stars dominated that the constellation Ursa Major the Great Bear. Meanwhile, the constellation Orion the Hunter plays a key role in finding their way around the sky from late autumn to early spring.
Each map shows the sky as the near 35 ° north latitude at the time. Located on the edges of the card are the four directions: north, south, east and west. To find stars on the horizon, keep the overhead map and orient it towards a label with the direction in which you are. The stars on the horizon card's now with what is happening in the sky.
Exploring the winter sky
Winter finds the Big Dipper climbing the northeastern sky, with the three stars of its handle pointing toward the horizon and the four stars of its bowl standing highest. The entire sky rotates around a point near Polaris, a 2nd-magnitude star found by extending a line from the uppermost pair of stars in the bowl across the sky to the left of the Dipper. Polaris also performs two other valuable functions: The altitude of the star above the horizon equals your latitude north of the equator, and dropping a straight line from the star to the horizon points due north.
Turn around with your back to the Dipper and you'll be facing the diamond-studded winter sky. The second great signpost in the sky, Orion the Hunter, is central to the brilliant scene. Three closely spaced, 2nd-magnitude stars form a straight line that represents the unmistakable belt of Orion. Extending the imaginary line joining these stars to the upper right leads to Taurus the Bull and its orangish 1st-magnitude star, Aldebaran. Reverse the direction of your gaze to the belt's lower left and you cannot miss Sirius the Dog Star — brightest in all the heavens at magnitude -1.5.
Now move perpendicular to the belt from its westernmost star, Mintaka, and find the red supergiant star Betelgeuse at the upper left of Orion. Nearly a thousand times the Sun's diameter, Betelgeuse marks one shoulder of Orion. Continuing this line brings you to a pair of bright stars, Castor and Pollux. Two lines of fainter stars extend from this pair back toward Orion — these represent Gemini the Twins. At the northeastern corner of this constellation lies the beautiful open star cluster M35. Head south of the belt instead and your gaze will fall on the blue supergiant star Rigel, Orion's other luminary.
Above Orion, and nearly overhead on winter evenings, is brilliant Capella in Auriga the Charioteer. Extending a line through the shoulders of Orion to the east leads you to Procyon in Canis Minor the Little Dog. Once you have these principal stars mastered, using the chart to discover the fainter constellations will be a lot easier. Take your time, and enjoy the journey. Before leaving Orion, however, aim your binoculars at the line of stars below the belt. The fuzzy "star" in the middle is actually the glorious Orion Nebula (M42), a stellar nursery illuminated by bright, newly formed stars.
Exploring the spring sky
The Big Dipper, our guide into the sky, swings high overhead costs in the spring and is located near the center of the diagram. In this season of rejuvenation encourages us to outdoors with the milder temperatures, and the new season with a new set of stars beckons us.
Follow the arc of stars in the handling of the car away from the bowl and you land on brilliant Arcturus. This orangish star dominates the spring sky in the kite-shaped constellation Boötes the herdsman. Well, the west of Boötes is Leo the lion. You can find its brightest star Regulus, by using the pointer of the car in reverse gear. Regulus is on the basis of a group of stars in the form of a sickle or backward question mark, was the head of the lions.
Half way between Regulus and Pollux in Gemini, the sinking is now in the west, is the diminutive group of cancer of the crab. Centered in this group is a dunstiger patch of light show the binoculars, as the Beehive Cluster (M44).
To the southeast of Leo is the realm of galaxies and the constellation Virgo the Maiden. Virgo's brightest star Spica, lit in order of magnitude 1.0.
In the spring, the Milky Way is level with the horizon, and it is easy to see that we are out of the plane of our galaxy. In the direction of Virgo, Leo, Coma Berenices, and Ursa Major are thousands of galaxies, whose light unhindered by the intervention dust in our own galaxy. But all these galaxies are elusive to the untrained eye and require binoculars or a telescope to see.
Boötes is located on the eastern border of this galaxy haven. Half way between Arcturus and Vega, the bright "Summer" star is rising in the northeast, a region where no star shines brighter than 2nd Magnitude. A half-circle of stars Corona Borealis, the Northern Crown, and nearby is a large region, the houses of the Strongman Hercules, the fifth-largest constellation in the sky. It is here we find the northern sky of the brightest star clusters globular cluster, M13. A naked-eye object from a dark place, it looks when spectacular view through a telescope.
Already at the Big Bear, check the second-last star in the Dipper's handle. Most people see it than doubled, while binoculars show that this is easy. The couple called Alcor and Mizar, and they are only 0.2 ° apart. A telescope shows Mizar itself as a double. His companion star shine in order of magnitude 4.0 and located 14 arc seconds.
Exploring the summer sky
The wealth of the summer sky, the splendor of the Milky Way. Stretching from the northern horizon in Perseus, through the cross-shaped constellation Cygnus overhead, and down to Sagittarius in the south, the Milky Way is packed with riches. These resources include star clusters, nebula, double stars, and variable stars.
Let's start with the Big Dipper, our multi-shield, which now lies in the north-west with his grip still pointed in the direction of Arcturus. High overhead costs, and the first stars appear after sunset, is Vega in Lyra the harp. Vega forms a corner of the summer triangle, a prominent asterism of three stars. Vega is located near the famous double-double, Epsilon Lyrae. 5th Two-star magnitude is slightly more than 3 arc minutes apart and can be when viewed through binoculars. Each of these two stars is also double, but you need a telescope to divide.
In the east of the triangle Vega is the second star: Deneb in Cygnus the Swan (Some see a cross in this pattern). Deneb is the tail of this graceful bird, The cross represents his outstretched wings, and the base of the cross is the head, which is dominated by the incomparable Double Star Albireo. Albireo with a 3rd-magnitude yellow star and a magnitude 5-blue star and offers the finest color contrast across the sky. Deneb is a supergiant star pumps that enough light to equal 60000 Suns. Also note that the Milky Way splits into two parts in Cygnus, a huge gap caused by the blocking of interstellar dust of stars light beyond.
Altair, the third star of the Summer Triangle and the furthest south, is the second brightest of the three. Lying 17 light-years away, it's the brightest star in the constellation Aquila the Eagle.
Often overlooked that the north of Deneb lies the constellation Cepheus the King. Shaped more like a bishop of the hat, the southern corner of the Cepheus is characterized by a compact triangle of stars, the Delta Cephei. This famous star is the prototype of a Cepheid variable stars used to the distances to some of the galaxies nearer. It differs regular order of magnitude from 3.6 to 4.3 and back with a 5.37-day period.
Umarmte the southern horizon, the constellations of Scorpius and Sagittarius the Archer scorpion lie in the thickest part of the Milky Way. Scorpion's brightest star, Antares, a red supergiant star, whose name means "rival of Mars" and is derived from its similarity to the planet in both color and brightness.
Exploring the autumn sky
The cool nights of autumn are here to remind us the chill of winter is not far away. Together with the cool air, the brilliant stars of the summer triangle descent into the West should be replaced with a rather mild-looking region of the sky. But do not let appearances deceive you first. Hidden in the autumn sky are equally precious stones summer.
The Big Dipper swings low in this season, and for parts of the southern United States actually is. Cassiopeia, the queen, a group of five bright stars in the form of a "W" or "M", reaches its highest point overhead, the same spot the Big Dipper reaches 6 months. To the east of Cassiopeia, Perseus the hero rises high. Nestled between these two groups is the miraculous Double Cluster - NGCs 869 and 884 - a fantastic view of binoculars or a low-power telescope.
Our view to the south of the Milky Way is a window from the plane of our galaxy in the opposite direction to see that in the spring. This allows us a glimpse into the Local Group of galaxies. Due south of Cassiopeia is the Andromeda Galaxy (M31), a 4th-magnitude smudge of light that passes directly overhead about 9 clock in mid-November. Further south, between Andromeda and Triangulum, is M33, an extensive face-on spiral galaxy is best seen in binoculars or a wide-field telescope.
The Great Square of Pegasus happened just south of the zenith. Four 2nd-and 3rd-magnitude stars form of space, but only a few stars can be seen inside. If you draw a line between the two stars on the right side of the square and extend it to the south, see 1st-magntiude Fomalhaut Southern fish in the Southern Fish. Fomalhaut is the lone bright star low in the south. With the help of the east side of the square as a pointer in the south will take you to Diphda in the large, weak constellation of Cetus the Whale.
On the eastern side of the square is the Pleiades star cluster (M45) in Taurus, which reminds us of the upcoming winter. By late evening in October and early evening in December, Orion and Taurus have both cleared the horizon and Gemini rises in the northeast. In concert with the reappearance of winter constellations, the view to the northwest finds's summertime at Cygnus and Lyra. The fall season is a major transitional period, both on Earth and in heaven, and a fine time to experience the subtleties of these constellations.
astronomy.com
Each map shows the sky as the near 35 ° north latitude at the time. Located on the edges of the card are the four directions: north, south, east and west. To find stars on the horizon, keep the overhead map and orient it towards a label with the direction in which you are. The stars on the horizon card's now with what is happening in the sky.
Exploring the winter sky
Winter finds the Big Dipper climbing the northeastern sky, with the three stars of its handle pointing toward the horizon and the four stars of its bowl standing highest. The entire sky rotates around a point near Polaris, a 2nd-magnitude star found by extending a line from the uppermost pair of stars in the bowl across the sky to the left of the Dipper. Polaris also performs two other valuable functions: The altitude of the star above the horizon equals your latitude north of the equator, and dropping a straight line from the star to the horizon points due north.Turn around with your back to the Dipper and you'll be facing the diamond-studded winter sky. The second great signpost in the sky, Orion the Hunter, is central to the brilliant scene. Three closely spaced, 2nd-magnitude stars form a straight line that represents the unmistakable belt of Orion. Extending the imaginary line joining these stars to the upper right leads to Taurus the Bull and its orangish 1st-magnitude star, Aldebaran. Reverse the direction of your gaze to the belt's lower left and you cannot miss Sirius the Dog Star — brightest in all the heavens at magnitude -1.5.
Now move perpendicular to the belt from its westernmost star, Mintaka, and find the red supergiant star Betelgeuse at the upper left of Orion. Nearly a thousand times the Sun's diameter, Betelgeuse marks one shoulder of Orion. Continuing this line brings you to a pair of bright stars, Castor and Pollux. Two lines of fainter stars extend from this pair back toward Orion — these represent Gemini the Twins. At the northeastern corner of this constellation lies the beautiful open star cluster M35. Head south of the belt instead and your gaze will fall on the blue supergiant star Rigel, Orion's other luminary.
Above Orion, and nearly overhead on winter evenings, is brilliant Capella in Auriga the Charioteer. Extending a line through the shoulders of Orion to the east leads you to Procyon in Canis Minor the Little Dog. Once you have these principal stars mastered, using the chart to discover the fainter constellations will be a lot easier. Take your time, and enjoy the journey. Before leaving Orion, however, aim your binoculars at the line of stars below the belt. The fuzzy "star" in the middle is actually the glorious Orion Nebula (M42), a stellar nursery illuminated by bright, newly formed stars.
Exploring the spring sky
The Big Dipper, our guide into the sky, swings high overhead costs in the spring and is located near the center of the diagram. In this season of rejuvenation encourages us to outdoors with the milder temperatures, and the new season with a new set of stars beckons us.Follow the arc of stars in the handling of the car away from the bowl and you land on brilliant Arcturus. This orangish star dominates the spring sky in the kite-shaped constellation Boötes the herdsman. Well, the west of Boötes is Leo the lion. You can find its brightest star Regulus, by using the pointer of the car in reverse gear. Regulus is on the basis of a group of stars in the form of a sickle or backward question mark, was the head of the lions.
Half way between Regulus and Pollux in Gemini, the sinking is now in the west, is the diminutive group of cancer of the crab. Centered in this group is a dunstiger patch of light show the binoculars, as the Beehive Cluster (M44).
To the southeast of Leo is the realm of galaxies and the constellation Virgo the Maiden. Virgo's brightest star Spica, lit in order of magnitude 1.0.
In the spring, the Milky Way is level with the horizon, and it is easy to see that we are out of the plane of our galaxy. In the direction of Virgo, Leo, Coma Berenices, and Ursa Major are thousands of galaxies, whose light unhindered by the intervention dust in our own galaxy. But all these galaxies are elusive to the untrained eye and require binoculars or a telescope to see.
Boötes is located on the eastern border of this galaxy haven. Half way between Arcturus and Vega, the bright "Summer" star is rising in the northeast, a region where no star shines brighter than 2nd Magnitude. A half-circle of stars Corona Borealis, the Northern Crown, and nearby is a large region, the houses of the Strongman Hercules, the fifth-largest constellation in the sky. It is here we find the northern sky of the brightest star clusters globular cluster, M13. A naked-eye object from a dark place, it looks when spectacular view through a telescope.
Already at the Big Bear, check the second-last star in the Dipper's handle. Most people see it than doubled, while binoculars show that this is easy. The couple called Alcor and Mizar, and they are only 0.2 ° apart. A telescope shows Mizar itself as a double. His companion star shine in order of magnitude 4.0 and located 14 arc seconds.
Exploring the summer sky
The wealth of the summer sky, the splendor of the Milky Way. Stretching from the northern horizon in Perseus, through the cross-shaped constellation Cygnus overhead, and down to Sagittarius in the south, the Milky Way is packed with riches. These resources include star clusters, nebula, double stars, and variable stars.Let's start with the Big Dipper, our multi-shield, which now lies in the north-west with his grip still pointed in the direction of Arcturus. High overhead costs, and the first stars appear after sunset, is Vega in Lyra the harp. Vega forms a corner of the summer triangle, a prominent asterism of three stars. Vega is located near the famous double-double, Epsilon Lyrae. 5th Two-star magnitude is slightly more than 3 arc minutes apart and can be when viewed through binoculars. Each of these two stars is also double, but you need a telescope to divide.
In the east of the triangle Vega is the second star: Deneb in Cygnus the Swan (Some see a cross in this pattern). Deneb is the tail of this graceful bird, The cross represents his outstretched wings, and the base of the cross is the head, which is dominated by the incomparable Double Star Albireo. Albireo with a 3rd-magnitude yellow star and a magnitude 5-blue star and offers the finest color contrast across the sky. Deneb is a supergiant star pumps that enough light to equal 60000 Suns. Also note that the Milky Way splits into two parts in Cygnus, a huge gap caused by the blocking of interstellar dust of stars light beyond.
Altair, the third star of the Summer Triangle and the furthest south, is the second brightest of the three. Lying 17 light-years away, it's the brightest star in the constellation Aquila the Eagle.
Often overlooked that the north of Deneb lies the constellation Cepheus the King. Shaped more like a bishop of the hat, the southern corner of the Cepheus is characterized by a compact triangle of stars, the Delta Cephei. This famous star is the prototype of a Cepheid variable stars used to the distances to some of the galaxies nearer. It differs regular order of magnitude from 3.6 to 4.3 and back with a 5.37-day period.
Umarmte the southern horizon, the constellations of Scorpius and Sagittarius the Archer scorpion lie in the thickest part of the Milky Way. Scorpion's brightest star, Antares, a red supergiant star, whose name means "rival of Mars" and is derived from its similarity to the planet in both color and brightness.
Exploring the autumn sky
The cool nights of autumn are here to remind us the chill of winter is not far away. Together with the cool air, the brilliant stars of the summer triangle descent into the West should be replaced with a rather mild-looking region of the sky. But do not let appearances deceive you first. Hidden in the autumn sky are equally precious stones summer.The Big Dipper swings low in this season, and for parts of the southern United States actually is. Cassiopeia, the queen, a group of five bright stars in the form of a "W" or "M", reaches its highest point overhead, the same spot the Big Dipper reaches 6 months. To the east of Cassiopeia, Perseus the hero rises high. Nestled between these two groups is the miraculous Double Cluster - NGCs 869 and 884 - a fantastic view of binoculars or a low-power telescope.
Our view to the south of the Milky Way is a window from the plane of our galaxy in the opposite direction to see that in the spring. This allows us a glimpse into the Local Group of galaxies. Due south of Cassiopeia is the Andromeda Galaxy (M31), a 4th-magnitude smudge of light that passes directly overhead about 9 clock in mid-November. Further south, between Andromeda and Triangulum, is M33, an extensive face-on spiral galaxy is best seen in binoculars or a wide-field telescope.
The Great Square of Pegasus happened just south of the zenith. Four 2nd-and 3rd-magnitude stars form of space, but only a few stars can be seen inside. If you draw a line between the two stars on the right side of the square and extend it to the south, see 1st-magntiude Fomalhaut Southern fish in the Southern Fish. Fomalhaut is the lone bright star low in the south. With the help of the east side of the square as a pointer in the south will take you to Diphda in the large, weak constellation of Cetus the Whale.
On the eastern side of the square is the Pleiades star cluster (M45) in Taurus, which reminds us of the upcoming winter. By late evening in October and early evening in December, Orion and Taurus have both cleared the horizon and Gemini rises in the northeast. In concert with the reappearance of winter constellations, the view to the northwest finds's summertime at Cygnus and Lyra. The fall season is a major transitional period, both on Earth and in heaven, and a fine time to experience the subtleties of these constellations.
astronomy.com
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