[ সাইডিআরিআল্ ]adjective নক্ষত্র ও তার পরিমাপ-বিষয়ক; নাক্ষত্রিক: time, নক্ষত্র দ্বারা পরিমাপিত সময়; নাক্ষত্রিক সময়; the year, নাক্ষত্রিক বছর, অর্থাৎ ৩৬৫ দিন, ৬ ঘণ্টা, ১০ মিনিট।
sidereal definition
Pertaining to the stars or the apparent motion of stars.
sidereal শব্দটির synonyms বা প্রতিশব্দ
sidereal Example in a sentence
The sidereal year marks the Earth’s complete orbit around the sun, taking approximately 365.2564 days.
The sidereal day refers to the time it takes for a fixed point on Earth’s surface to return to the same celestial meridian, which lasts about 23 hours, 56 minutes, and 4.1 seconds.
Sidereal time is measured relative to the fixed stars, allowing astronomers to accurately track the movement of celestial objects.
The sidereal month is the time it takes for the moon to complete one full orbit around the Earth, spanning approximately 27.32 days.
Sidereal rotation refers to the rotation of a celestial body relative to distant stars, providing information about its true spin rate.
The sidereal period of a planet is the time it takes to complete one orbit around its star.
In astrology, sidereal zodiac signs align with the fixed stars, as opposed to tropical zodiac signs, which move gradually over time.
Sidereal timekeeping systems have been used in ancient civilizations, such as the Mayan and Babylonian calendars, to precisely record celestial events.
Sidereal spectroscopy analyzes the movement of stars relative to the observer, revealing their radial velocities and potential exoplanet systems.
The sidereal parallax method is used to accurately measure the distance to nearby stars by observing their apparent shift against the background of distant stars.