Where are Antares in the night sky?
Antares is the 16th brightest star in the sky. It’s located in the southern half of Earth’s sky and is a beautiful sight from both the Northern and Southern Hemispheres. From our northerly latitudes, we see it arc across the south.
How far away from you is Antares?
554.5 light years
Antares/Distance to Earth
Where would the celestial equator appear to be located for an observer standing directly on one of the Earth’s poles?
An observer standing on Earth’s equator visualizes the celestial equator as a semicircle passing through the zenith, the point directly overhead. As the observer moves north (or south), the celestial equator tilts towards the opposite horizon.
Why is Scorpius visible during summer in the northern hemisphere but visible during winter in the Southern Hemisphere?
So as Orion sets in the west, Scorpius rises in the east, and vice versa. During the Southern Hemisphere summer, when the South Pole of the Earth is pointed towards the Sun, the Earth is positioned between the constellation of Orion and the Sun. This is why Scorpius can be seen in our night sky during winter evenings.
Is Antares visible from Earth?
Antares is visible all night around May 31 of each year, when the star is at opposition to the Sun. Antares then rises at dusk and sets at dawn as seen at the equator.
How far is Antares from Earth?
At what location on Earth is an observer that has the south celestial pole directly overhead?
The north and south celestial poles are the two imaginary points in the sky where Earth’s axis of rotation, indefinitely extended, intersects the celestial sphere. The north and south celestial poles appear permanently directly overhead to observers at Earth’s North Pole and South Pole, respectively.
Where on the planet is it possible to see the celestial equator?
At the north pole, the celestial equator lies on the horizon. As the observer moves further south in latitude, the north celestial pole moves further away from the zenith until it lies at the horizon when the observer is at the Earth’s equator. At the Earth’s equator, the celestial equator passes through the zenith.
How do you get a Scorpio?
Scorpius like Sagittarius is most easily found looking south toward the Milky Way and following it upward. It is easiest to find Scorpius by looking for what looks like a fish hooks of bright stars. At the center of this hook is what visually looks like a bright red star.
Is there a star named Carina?
Stars. Carina contains Canopus, a white-hued supergiant that is the second-brightest star in the night sky at magnitude −0.72. Alpha Carinae, as Canopus is formally designated, is 313 light-years from Earth. Its traditional name comes from the mythological Canopus, who was a navigator for Menelaus, king of Sparta.
Will Antares become a black hole?
Antares is a binary system. The primary star that can be seen with your unaided eye is the red supergiant; its companion — Antares B — is a smaller main-sequence B-type star of 5th magnitude. Antares will implode, then re-explode with the phenomenal force of a supernova, leaving behind a neutron star or black hole.
Is Antares in the Milky Way?
Antares is the brightest star in the constellation Scorpius and one of the brightest stars embedded in the sweeping arc of the Milky Way. Like all red supergiants, Antares will soon run out of fuel.
Is Antares a navigational star?
Antares is one of the two stars in the constellation Scorpius selected for navigation. The other navigational star in the constellation is Shaula, Lambda Scorpii. Antares is a member of the Upper Scorpius subgroup of the Scorpius-Centaurus Association (Sco OB2), the nearest OB association to the Sun.
When is Antares visible from the equator?
Antares is visible all night around May 31 of each year, when the star is at opposition to the Sun. Antares then rises at dusk and sets at dawn as seen at the equator. For two to three weeks on either side of November 30, Antares is not visible in the night sky from mid-northern latitudes, because it is near conjunction with the Sun.
How far away is Antares from the Sun?
Due to the nature of the star, the derived parallax measurements have large errors, so that the true distance of Antares is approximately 550 light-years (170 parsecs) from the Sun.
Why does Antares have radial velocity variations?
Antares is the brightest and most massive star in Sco OB2. Variations in radial velocity were detected in the star’s spectrum in the early 20th century. Astronomers soon realized that the variations were not the result of the star’s orbital motion but were instead caused by the pulsation of its atmosphere.