a southern circumpolar constellation that contains the stellar south pole

a southern circumpolar constellation that contains the stellar south pole插图

Constellation Octans
What constellation contains the stellar South pole? The south celestial poleis visible only from the Southern Hemisphere. It lies in the dimconstellation Octans.

What are the circumpolar Southern constellations?

The circumpolar southern constellations are Carina, Centaurus, and Crux. They can be found circling the south celestial pole and can be seen from southern latitudes at any time of year while remaining invisible for observers in most northern locations.

Why are there no circumpolar constellations in North America?

The same goes for the southern constellations: their stars never rise or set, but only rotate around the pole. For observers in equatorial latitudes, there are no circumpolar constellations as the stars change from season to season.

What is the brightest star in the Southern Cross constellation?

α Crucis (Alpha Crucis), also known as Acrux or HD 108248, is a bluish star that marks the bottom of the Southern Cross when you are facing south. It is the brightest star in the constellation Crux. It is really a multiple star system with a combined apparent magnitude of 0.77, making Acrux the 13th brightest star in the night sky.

What are the smallest southern constellations?

The smallest southern constellations are Crux (68.45 square degrees), Circinus (93.35), Scutum (109.11), Triangulum Australe (109.98), Reticulum (113.94), Caelum (124.87) and Corona Australis (127.70). There are 52 southern constellations in total. They are divided into four quadrants: SQ1, SQ2, SQ3, and SQ4.

What constellation is Cepheus in?

Cepheus, representing Cassiopeia’s husband and Andromeda’s father in Greek mythology, is found between Cassiopeia, Draco and Ursa Minor. It is the 27th largest constellation, only slightly smaller than Orion, and known for its variable stars. However, its brightest star Alderamin, or Alpha Cephei, comes in only 89th on the list …

What constellations are found in the night sky?

The constellations Cassiopeia, Cepheus, Draco, Ursa Major, and Ursa Minor are found circling Polaris, the North Star, located in Ursa Minor. Three of these constellations are very easy to find in the night sky because they are dominated by familiar asterisms, formed by their brightest stars.

What are circumpolar constellations?

Circumpolar Constellations. Circumpolar constellations are constellations that never set below the horizon when seen from a particular location on Earth. They can be seen in the night sky throughout the year, while other constellations are seasonal, visible only at certain times of year.

What constellation is the Southern Cross?

In spite of being the smallest constellation in the sky, Crux is the easiest of the three to identify as it contains the Southern Cross, a familiar grouping of stars that has played a prominent role in many cultures south of the equator. The Southern Cross is featured on the national flags of Australia, New Zealand, Samoa, Papua New Guinea and Brazil. The asterism is formed by five stars, three of which are among the 25 brightest stars in the sky, and is used in navigation, to find true south. Two of its stars – Acrux and Gacrux (Alpha and Gamma Crucis) point the way toward the southern celestial pole.

What is the name of the star that is on the keel of the ship?

Carina , which used to be part of the much larger Greek constellation Argo Navis, representing the ship of the Argonauts, marks the keel of the ship. It contains Canopus, the second brightest star in the sky, and Miaplacidus, the 28th brightest star.

Which constellations are visible from the northern hemisphere?

The five northern constellations visible from most locations north of the equator throughout the year are Cassiopeia, Cepheus, Draco, Ursa Major, and Ursa Minor. The three southern circumpolar constellations visible from most locations in the southern hemisphere are Carina, Centaurus, and Crux.

How many constellations are circumpolar?

Other constellations are just as prominent in the sky and can be seen for most of the year, but only these eight are circumpolar.

What is the brightest star in the constellation Crux?

α Crucis (Alpha Crucis), also known as Acrux or HD 108248, is a bluish star that marks the bottom of the Southern Cross when you are facing south. It is the brightest star in the constellation Crux.

What is the magnitude of Alpha Crucis?

Acrux lies at a distance of 321 light years from Earth. It has an absolute magnitude of -4.14.

How many stars are in the Southern Cross?

As the Southern Cross dominates Crux constellation, it is often confused for the constellation itself, which contains more than five stars. The stars that form the cross asterism are just the brightest ones located in the constellation. The cross-shaped pattern can easily be seen from the southern latitudes at any time of year. Observers in the tropical latitudes of the northern hemisphere can see it near the horizon in winter and spring, but only for a few hours every night.

Where is the coalsack in the sky?

The Coalsack is located approximately 600 light-years away from Earth in the southern part of the constellation of Crux (the Southern Cross).

Which constellations have the brightest stars?

Two of the brightest stars that form the cross, Alpha Crucis and Beta Crucis, are among the brightest stars in the sky and easily visible from the southern hemisphere. The stars Alpha, Beta and Delta Crucis are co-moving members of the Scorpius-Centaurus Association, a young association of stars in the constellations Scorpius and Centaurus that belong to the spectral class O and B, have common proper motion, and are believed to have formed inside the same giant molecular cloud.

Where does the name Mimosa come from?

β Crucis (Beta Crucis), or Becrux, is also known by a proper name, Mimosa. The name, derived from the Latin word for “actor,” likely came from the flower. It is the second brightest star of the Southern Cross asterism. It is at approximately -60° declination and can’t be seen north of 30°N.

Why is the Southern Cross important?

The Egyptians saw it as representative of the place where Horus, the Sun goddess, was crucified, marking the passage of winter . The Aborigines and the Maori saw the cross as symbolizing animist spirits that were integral in their ancestral beliefs. The Aborigines saw Crux and the Coalsack Nebula as marking the head of the “Emu in the Sky.”

What constellations are in the southern hemisphere?

These are Antlia (the Air Pump), Caelum (the Chisel), Circinus (the Compass), Fornax (the Furnace), Horologium (the Pendulum Clock), Mensa (Table Mountain), Microscopium (the Microscope), Norma (the Level), Octans (the Octant), Pictor (the Painter’s Easel), Reticulum (the Reticle), Sculptor and Telescopium (the Telescope).

What are the southern constellations?

Southern constellations are those that lie to the south of the celestial equator and are better seen from the southern hemisphere. The southern constellations that were visible to Greeks are mostly associated with Greek myths and some of them even date back to earlier times. The constellations that were not visible to northern observers were not …

Where did Lacaille create the constellations?

Lacaille created these constellations while observing the southern skies from an observatory on Table Mountain in South Africa. They were not visible to ancient civilizations in Europe. The largest constellations in the southern celestial hemisphere are Hydra (1302.84 square degrees), Virgo (1294.43), Cetus (1231.41), Eridanus (1137.92), …

When were the southern constellations discovered?

The constellations that were not visible to northern observers were not mapped until the late 16th century, when European navigators and explorers started going on expeditions that took them south of the equator. The southern constellations include the entire Bayer Family, a group of 11 constellations introduced by the German uranographer Johann …

Who discovered the southern constellations?

The southern constellations include the entire Bayer Family, a group of 11 constellations introduced by the German uranographer Johann Bayer in 1603.

What are the bright stars in the constellation of Centaurus?

In spite of this area of sky containing mainly faint and relatively obscure groups, the region is ringed by the bright stars Alpha and Beta Centauri in Centaurus, Canopus in Carina and Achernar in Eridanus. Using these stars as a framework and arming yourself with the accompanying chart, you should be able to identify the south circumpolar constellations.

Which star is closest to Hydrus?

Lying quite close to the triangle of stars forming Hydrus is the bright star Achernar in Eridanus (the River). Achernar is fairly easy to pick out and acts as an effective finding aid for the relatively obscure constellations that lie in the same region of sky including Phoenix (the Phoenix), Horologium (the Pendulum Clock) and Reticulum (the Net). Slightly to the north of Phoenix we see the dim Sculptor (the Sculptor) and the prominent Fomalhaut, the leading star in Piscis Austrinus (the Southern Fish).

What is the size of the magellanic cloud?

Located at a distance of over 160,000 light years, the LMC is a sizeable system measuring around 14,000 light years across. Somewhat further away is the SMC which, at a distance of around 190,000 light years, has a diameter of around 7,000 light years.

What is circumpolar star?

A circumpolar star or constellation is one that never sets as seen from a given location, but always stays above the observer’s horizon and can be viewed all year round (see Circumpolar Stars ). The area of sky depicted here shows stars which are circumpolar as seen from roughly mid-southern latitudes and includes the constellations that surround Octans (the Octant), the group which contains the south celestial pole. Unlike its northern counterpart, which is marked by the relatively bright Polaris in Ursa Minor (see North Circumpolar Stars) there is no particularly bright star indicating the position of the south celestial pole.

What constellation is near Centaurus?

The southern regions of Centaurus surround the bright constellation Crux (the Cross) while immediately to the south of Crux we find the tiny but conspicuous Musca (the Fly). Lying close to the south celestial pole is the less prominent trio Chamaeleon (the Chamaeleon), Apus (the Bird of Paradise) and Volans (the Flying Fish).

Which constellation borders Piscis Austrinus?

Indus (the Indian) borders Microscopium, this forming a triangle of constellations with Pavo (the Peacock) and Telescopium (the Telescope).

Where is the bent line of stars in Carina?

Located close to the bright star Canopus in Carina (the Keel) is the bent line of three faint stars forming Pictor (the Painter’s Easel). Carina itself, along with adjoining Vela (the Sail) are considerably more prominent, as is the asterism the ‘False Cross’ which is formed from two stars in Carina and two in Vela. This pattern is often confused with nearby Crux which is located some way to the east.

What constellation does Arcas go into?

Arcas draws his spear and vows revenge against the gods, and Zeus, preventing the disaster, sends both Castillo and Arcas into the heavens, turning Castillo into the Ursa Major constellation, and Arcas into the Bootes constellation (although in some versions, Arcas is turned into Ursa Minor).

How many circumpolar constellations are there in the Northern Hemisphere?

There are five circumpolar constellations in the northern hemisphere, and three circumpolar constellations in the southern hemisphere:

What is circumpolar constellation?

Circumpolar Constellations Explained. Circumpolar constellations are constellations that never set below the horizon when seen from a particular location on Earth. It circles the north and south celestial poles (hence the name circum, meaning encircling, and polar) without ever dipping below the horizon.

Why are constellations important?

Constellations play an integral part in Greek and Roman mythology and religion. Constellations also served important practical functions as a navigational tool for sailors and travelers as well. This is all possible because there are constellations in the night sky that remain relatively fixed in the sky throughout the years, …

Why was Cepheus important?

Cepheus was actually a very important constellation in ancient times because it contains cepheids, which were used in navigation to measure long distances.

Which constellations are circling the North Star?

Northern Circumpolar Constellations. The Polaris, the North Star, is actually a part of the Ursa Minor constellation, and as we’ve discussed the Ursa Major, Ursa Minor, Cassiopeia, Cepheus and Draco constellations can always be seen as circling the Polaris year-round if you are located in the Northern Hemisphere.

Where is Cepheus located?

We can find Cepheus between Ursa Minor, Draco, and Cassiopeia. It is the 27th largest constellation, so it’s not that small, but its brightest star, Alpha Cephei or Alderamin, is only the 89th brightest star in the night sky.