There are officially 88 recognized constellations. This list was standardized by the International Astronomical Union (IAU) in 1922, providing a comprehensive system to identify and categorize constellations across the entire night sky.
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To identify constellations, use star charts or astronomy apps that show their positions and shapes. Look for prominent patterns and shapes in the night sky, such as the Big Dipper or Orion, and match them to these tools.
Yes, you can find constellations or stars from your location using star charts or astronomy apps. The visibility of specific stars and constellations depends on the time of year, your location, and the weather conditions.
The closest star to Earth, aside from the Sun, is Proxima Centauri. It is part of the Alpha Centauri star system and is located approximately 4.24 light-years away from us, making it the nearest known star.
To find out how hot or cold a body is, use a thermometer. A thermometer measures temperature by detecting changes in physical properties, like liquid expansion or electrical resistance, and displays the temperature on a scale.
To measure temperature with a laboratory thermometer, immerse the bulb in the substance or environment being measured, wait until the liquid stabilizes, and then read the temperature from the scale. Ensure accurate placement.
Yes, when a thermometer is removed from water, the liquid column falls because it cools down and contracts. The liquid inside the thermometer shrinks as it loses heat, causing the column level to decrease.
Anna Mani was an Indian physicist and meteorologist known for her work on solar radiation and instrumentation. She made significant contributions to weather forecasting and was a pioneer in meteorological instrumentation in India.
Yes, some objects in the sky have temperatures exceeding the Sun’s core. For instance, neutron stars and supernova remnants can reach temperatures over 100 million degrees Celsius due to their extreme density and energy.
Here are the planets’ distances from the Sun (in AU) and average temperatures: Mercury (0.39 AU, 167°C), Venus (0.72 AU, 464°C), Earth (1.00 AU, 15°C), Mars (1.52 AU, -65°C), Jupiter (5.20 AU, -110°C), Saturn (9.58 AU, -140°C), Uranus (19.22 AU, ...