What is the biggest moon called?
Ganymede
What is the average density of an asteroid?
However, density depends on the asteroid’s spectral type. Krasinsky et al. gives calculations for the mean densities of C, S, and M class asteroids as 1.38, 2.71, and 5.32 g/cm3.
What type of asteroid has the highest density?
The Rosetta flyby demonstrated that the mass of Lutetia is (1.700 ± 0.017)×1018 kg, smaller than the pre-flyby estimate of 2.57×1018 kg. It has one of the highest densities seen in asteroids at 3.4 ± 0.3 g/cm3.
What is the best way to find the density of an asteroid?
To calculate asteroid densities one needs measurements of the radius (obtainable from astronomical information) and the mass (which cannot be obtained from their orbits or spectra). Masses can only be measured by examining the orbit of some smaller body, a man-made probe or a natural companion asteroid.
What is the average size of an asteroid?
Although NASA hasn’t calculated an average, asteroids range in size from Ceres, measuring 590 miles in diameter, to smaller ones that measure less than a half-mile across. The last near-Earth asteroid count was performed in 2013.
What is the temperature of an asteroid?
The average surface temperature of an asteroid is -73C (-100F). The largest asteroid Ceres was the first to be discovered in 1801, it has recently been re-classified as a dwarf planet. Asteroids are rich in minerals, the estimated wealth of the asteroid belt is 100 billion dollars for every person on Earth today.
How hot was the asteroid that killed the dinosaurs?
The asteroid impact that wiped out the dinosaurs caused temperatures to rise by 5°C. Earth stayed that hot for 100,000 years. That’s much hotter than expected, which could mean we are underestimating how much the planet will warm in the next few centuries.
How big was the asteroid that killed dinosaurs?
It was tens of miles wide and forever changed history when it crashed into Earth about 66 million years ago. The Chicxulub impactor, as it’s known, was a plummeting asteroid or comet that left behind a crater off the coast of Mexico that spans 93 miles and goes 12 miles deep.
Is Comet Swan visible from India?
Bengaluru: All through July, people in India and the rest of the northern hemisphere will be able to see the comet C/2020 F3, also known as NEOWISE, in the sky. Discovered earlier this year, the comet is currently nearly 200 million kilometres from Earth and is bright enough to be seen in the clear dawn sky.
When should I watch the comet Swan?
May 31 – June 1, 2020. After passing close to the sun, comet SWAN will reappear early in the evening sky (just after sunset, if it does not disintegrate), and pass close to the star Capella. This chart faces northwest during evening dusk, as seen from the southern U.S. For an individualized view, try Stellarium.