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What object is located at 5hr 55 min right ascension and 7 degrees declination?
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What is the direction of the heavenly bodies as seen on earth?
By tradition the direction of an object in the sky needs two coordinates to describe it because the normal description does not include the distance. The position (or direction) can be expressed as azimuth (angle round the horizon) and altitude (angle above the horizon). These depend on time an the position of the observer. Only positive altitude angles are seen in the sky. Astronomers prefer to use right ascension and declination. Declination is the latitude where the star passes overhead, and right ascension expresses how many hours the object crosses the meridian after a standard position called the First Point of Aries. The right ascension and declination are preferred because they don't depend on time or the observer's position on the Earth's surface.
What is the right ascension of the earth?
"Right Ascension" is a coordinate in one of the main celestial coordinate systems. It is measured eastward along the "celestial equator". The units of measurement are hours, minutes and seconds. Those units are used because the "celestial sphere" appears to rotate once each day. Each hour is the equivalent of 15 degrees. The zero or starting point for right ascension is the "Vernal Equinox". It may seem odd to refer to the Vernal Equinox as the starting point of a coordinate system. The Vernal Equinox is actually a point in space. This point in space is occupied by the Sun at the time we call the Vernal Equinox. You can think of Right Ascension as being the equivalent of the Earth's meridians projected out into space.
What objects rises in the east and sets in the west for an observer in New York?
That will apply to any object that has a declination of 0 degrees - such as the Sun at certain times of the year (the equinoxes), the Moon at certain times, or stars that have a declination close to zero degrees.
How does an equatorial mount in a telescope work?
The equatorial mount allows one axis of the telescope to be parallel to the Earth's axis. This allows you to track an object by only changing one axis. This axis is Right Ascension. The other axis is Declination.
Is mercury in the right ascension?
"Right ascension" is just one number for the coordinates of a planet, star, etc. Any such object has a right ascension.
Where is the biggest black hole?
The largest -- about 18 billion solar masses -- is about 3.5 billion years away and is identical to the quasar OJ287. That object is in the constellation of Cancer, approximately at ascension 9 hours and declination 20 degrees.
What is the longitude on a star map for Auriga?
Indicating the position of a celestial object is similar to latitude latitude and longitude. But it is called right ascension and declination.
Why do astronomers use Declination and Right Ascension?
These are coordinates that define the position of an object in the sky (on the "celestial sphere"). They are used in a similar way to how latitude and longitude are used, on the Earth's surface.
What is the direction of the heavenly bodies as seen on earth?
By tradition the direction of an object in the sky needs two coordinates to describe it because the normal description does not include the distance. The position (or direction) can be expressed as azimuth (angle round the horizon) and altitude (angle above the horizon). These depend on time an the position of the observer. Only positive altitude angles are seen in the sky. Astronomers prefer to use right ascension and declination. Declination is the latitude where the star passes overhead, and right ascension expresses how many hours the object crosses the meridian after a standard position called the First Point of Aries. The right ascension and declination are preferred because they don't depend on time or the observer's position on the Earth's surface.
What is the right ascension of the earth?
"Right Ascension" is a coordinate in one of the main celestial coordinate systems. It is measured eastward along the "celestial equator". The units of measurement are hours, minutes and seconds. Those units are used because the "celestial sphere" appears to rotate once each day. Each hour is the equivalent of 15 degrees. The zero or starting point for right ascension is the "Vernal Equinox". It may seem odd to refer to the Vernal Equinox as the starting point of a coordinate system. The Vernal Equinox is actually a point in space. This point in space is occupied by the Sun at the time we call the Vernal Equinox. You can think of Right Ascension as being the equivalent of the Earth's meridians projected out into space.
What objects rises in the east and sets in the west for an observer in New York?
That will apply to any object that has a declination of 0 degrees - such as the Sun at certain times of the year (the equinoxes), the Moon at certain times, or stars that have a declination close to zero degrees.
How does an equatorial mount in a telescope work?
The equatorial mount allows one axis of the telescope to be parallel to the Earth's axis. This allows you to track an object by only changing one axis. This axis is Right Ascension. The other axis is Declination.
What does the designation IRAS 16293-2422 mean?
The name indicates that the object was first spotted by the IRAS spacebased infrared telescope. The number is derived from the equatorial position of the observation by taking the hours, minutes and tenths of minutes (truncated, not rounded) of right ascension as well as the sign, degrees, and minutes of declination. For example a source at (X) = 12h 32m 15.5s and (X) = -15° 20' 15" has the name 12222-1520.The object in question is a young binary star, with similar mass to the Sun, located in the Rho Ophiuchi star-forming region.
Is mercury in the right ascension?
"Right ascension" is just one number for the coordinates of a planet, star, etc. Any such object has a right ascension.
What is the celestial equivalent of latitude?
The declination of a celestial object is the exact equivalent of latitude.
What object with what declination would be above the horizon for the longest amount of time at your location?
Any star whose declination is higher than (90 - your latitude) will be "circum-polar", meaning that the star will never appear to set. The star Alkaid, one of the handle stars in the Big Dipper, has a declination of 49 degrees. If your latitude is 90-49=41 N, then the star Alkaid will never go below the horizon.
How far east an object is from the vernal equinox is called?
right ascension
