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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.
What is the right ascension and declination of the star alpha Orionis?
RA 5h 55min, DEC 7 deg 24 in The distance ("a") from Earth to Betelgeuse is about 427 light years and the distance ("b") from Earth to Rigel is about 772 light years. The angle between the two stars from Earth is 18.56 degrees. Knowing these three numbers, we can now use the "law of cosines" to calculate the distance (c) between the stars: c = square root of (a2+ b2- 2ab x cosine of the angle).
What is the magnetic declination for Cincinnati?
As of October 2023, the magnetic declination for Cincinnati, Ohio, is approximately 6 degrees west. This means that magnetic north is about 6 degrees west of true north in that area. However, magnetic declination can change over time due to shifts in the Earth's magnetic field, so it's advisable to check for the most current information before navigation.
What is Earth's revolution in 1 year?
Earth completes one revolution around the Sun in approximately 365.25 days, causing the change in seasons. This period is known as a tropical year.
The angle of difference between the geographic and magnetic poles is called the declination How does the declination change as you move north from where you live?
The angle between the geographic and magnetic poles extends more towards the east, as you move to the north. The magnetic pole is actually near Greenland.
Does the right ascension and declination of the star Arcturus change with the change of month or is it the same throughout the year?
Basically they stay the same, although over tens of thousands of years, they change slightly.
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.
What direction is the Gemini constellation?
The direction will change all the time, due to Earth's rotation. It's approximate coordinates are: right ascension = 7 h, declination = +20°. If that doesn't mean anything to you, it would probably be easiest to have a friend who knows a bit about astronomy point it out to you.
What are the coordinates of the moon?
The coordinates of the moon are constantly changing as it orbits around the Earth. The moon's position in the sky is typically measured using celestial coordinates such as right ascension and declination. These coordinates can be calculated using astronomical tools and software.
How are revolution and year alike?
Both revolution and year involve change over time. Just as a year marks a complete cycle of the Earth around the sun, a revolution represents a significant and often abrupt change in a society or government.
Does the moon always travel the same path across the sky?
No, it does not. It is explained pretty well in wikipedia's "Lunar standstill" article, which says: "The Moon also changes in declination, but it does so in only a month, instead of a year for the Sun. So it might go from a declination of +25° to -25° in just two weeks, returning to +25° two weeks later. Thus, in just one month the moon can move from being high in the sky, to low on the horizon, and back again. "But, unlike the Sun, the maximum and minimum declination reached by the Moon also varies. This is because the orbit of the Moon's revolution about the Earth is inclined by about 5° to the orbit of the Earth's revolution around the Sun, and so the maximum declination of the Moon varies from (23.5°-5°)=18.5° to (23.5°+5°)=28.5°. The effect of this is that at one particular time (the minor lunar standstill), the Moon will change its declination during the month from +18.5° to -18.5°, which is a total movement of 37°. This is not a particularly big change, and may not be very noticeable in the sky. However, 9.3 years later, during the major lunar standstill, the Moon will change its declination during the month from +28.5° to -28.5°, which is a total movement of 57°, and which is enough to take it from high in the sky to low on the horizon in just two weeks." The reason for the moon's orbit moving between the major and minor standstills is that its orbit is inclined at an angle of about 5° to the ecliptic. Due to precession, the lunar orbit rotates slowly around the ecliptic, taking 18.6 years to complete one cycle
When does the Sun have declination 0 degree today but will have a negative declination tomorrow?
Declination is the angular measurement of a celestial body north or south of the "celestial equator". You can think of it as the equivalent of "celestial latitude". The "fixed stars" don't have any change in declination. (Well, they _DO_, but only very slightly and VERY slowly.) The Sun, Moon, and planets all have their own paths within the solar system, so their declinations will change on a day-to-day basis. The Sun is at a declination of zero precisely at the time of the equinox. In September, the Sun's declination is decreasing, and it goes negative immediately after the moment of the equinox. This is generally on September 21, but this can vary a day either way depending on the cycle of leap years.
During which two times of the year is the declination of the sun changing most slowly?
The declination of the sun changes most slowly near the times of the summer and winter solstices. At these points, the sun reaches its highest and lowest points in the sky, causing its declination to change gradually as it approaches these extreme positions.
What is the magnetic declination of Yosemite valley?
The magnetic declination in Yosemite Valley typically varies between 10 to 15 degrees east, depending on the specific location and the time of year. This angle indicates the difference between true north and magnetic north. For the most accurate and current declination, it's advisable to consult a local magnetic declination map or a reliable online resource, as it can change over time.
Why was it a revolution?
Revolution is a turning, a change. Revolution tends to imply a change of government by force.
What ie a revolution?
What is a revolution?A revolution is a mojor change.
Does revolution always change society?
Revolution always leads to change
