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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.
When will a star with a right ascension of 2.0 hours rise?
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.
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.
What are the right ascension and declination of the star procyon?
The right ascension of the star Procyon is approximately 7 hours and 39 minutes, while its declination is approximately +5 degrees and 14 minutes. These coordinates are for the epoch J2000.
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 are the right ascension and declination of the star Sirius in the constellation Canis Major?
The right ascension of Sirius is approximately 6 hours and 45 minutes, and its declination is approximately -16 degrees. It is the brightest star in the constellation Canis Major and one of the brightest stars in the night sky.
Does earth's revolution around the sun change both the right ascension and the declination of a star?
No, Earth's revolution around the Sun does not affect the right ascension and declination of a star. These coordinates are fixed relative to the celestial sphere and are not impacted by Earth's movement around the Sun. Right ascension and declination are used to locate objects in the sky and remain constant over time for a given star.
In star language what does RA stand for?
Right Ascension. It's the celestial equivalent of longitude.
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 object is located at 5hr 55 min right ascension and 7 degrees declination?
The object located at 5 hours 55 minutes right ascension and 7 degrees declination is the star Alnitak, which is part of the Orion constellation. Alnitak is the easternmost star in the three-star belt of Orion and is classified as a hot, massive blue supergiant. It is also known as Zeta Orionis and is approximately 800 light-years from Earth.
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.
Can a right ascension and declination for any given star always be the same?
No, the right ascension and declination of a star will change over time due to the Earth's rotation and the star's own motion through space. These coordinates are specific to a particular moment in time and will vary as the Earth orbits the Sun and as the star moves within our galaxy.
