0
That depends on the date, since the sun itself moves through the entire range
of RA during the year.
It also depends on the star's declination. Viewed from the northern hemisphere,
for example, the greater a star's declination, the earlier it rises, and if its declination
is greater than the complement of the observer's latitude, then it never sets.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What does Right Ascension mean?
Right ascension is essentially the longitude on a star chart where you may look to find something in the sky among the stars. The distance of a point east of the First Point of Aries, measured along the celestial equator and expressed in hours, minutes, and seconds.
What are the right ascension and declination of the star Sirius in the constellation Canis Major?
right ascensition and decliation orion in 2012
What is the star latitude and star declination?
Celestial coordinates. -- The star's latitude on the celestial sphere is the same as the Earth latitude that it seems to follow on its way aroujnd the sky. On the celestial sphere, the latitude is called "declination", and is expressed in degrees. -- The star's longitude on the celestial sphere is its angle, measured westward, from the point in the sky called the Vernal Equinox ... the point where the sun appears to cross the celestial equator in March. On the celestial sphere, the star's longitude is called "Right Ascension", and it's expressed in hours. That certainly seems confusing, but an "hour of Right Ascension" just means 15 degrees of celestial longitude. So, as the sky turns, the point directly over your head moves through the stars by 1 hour of Right Ascension every hour.
What star has a right ascension of 14h 05m and a declination of 65 degrees?
This is best answered by finding a star atlas like Norton's or the Sky Atlas 2000.0.
What is the right ascension and declination of the brightest star in the Octans constellation?
The brightest star is v Oct with an RA of 21h 41m 28.47s and declination of −77° 23′ 22.1″
Will a star with a right ascension of 1.0 hours rise before or after the vernal equinox?
Vernal equinox is defined as having right ascension 0; a right ascension 1.0 means it will pass a certain point (horizon, meridian, whatever) 1.0 hours after the vernal equinox.
What are the right ascension and declination of the star Spica in the constellation Virgo?
The right ascension of the star Spica in the Virgo constellation is 1900 13 hours and 25 minutes and the declination is 1900 -10.38'.Spica is the largest and brightest star in Virgo.
When will a star with a right ascension of 1.0 hours rise?
That completely depends on the date, since the sun itself moves through all values of RA in the course of a year, and our clocks refer to the sun.
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 does Right Ascension mean?
Right ascension is essentially the longitude on a star chart where you may look to find something in the sky among the stars. The distance of a point east of the First Point of Aries, measured along the celestial equator and expressed in hours, minutes, and seconds.
In star language what does RA stand for?
Right Ascension. It's the celestial equivalent of longitude.
What are the right ascension and declination of the star Sirius in the constellation Canis Major?
right ascensition and decliation orion in 2012
What are the right ascension and declination of the star alderbaran in the constellation Taurus?
According to Wikipedia: Right ascension 04h 35m 55.239s, declination +16° 30′ 33.49″. The data corresponds to the epoch 2000.0.
Does earth's revolution around the sun change both the right ascension and the declination of a star?
yes
Blank is how far around the map the star is?
Declination, which is measured as an angle, north is positive and south is negative. The declination of a star etc. is also the latitude at which the star passes overhead.
What is the star latitude and star declination?
Celestial coordinates. -- The star's latitude on the celestial sphere is the same as the Earth latitude that it seems to follow on its way aroujnd the sky. On the celestial sphere, the latitude is called "declination", and is expressed in degrees. -- The star's longitude on the celestial sphere is its angle, measured westward, from the point in the sky called the Vernal Equinox ... the point where the sun appears to cross the celestial equator in March. On the celestial sphere, the star's longitude is called "Right Ascension", and it's expressed in hours. That certainly seems confusing, but an "hour of Right Ascension" just means 15 degrees of celestial longitude. So, as the sky turns, the point directly over your head moves through the stars by 1 hour of Right Ascension every hour.
What star has a right ascension of 14h 05m and a declination of 65 degrees?
This is best answered by finding a star atlas like Norton's or the Sky Atlas 2000.0.
