|
Quote:
Yes, 10 points! 5. Greatest explosion ever? |
Francis raised her hand, "The universe? Most astronomers now believe that the universe began around 12 billion years ago in a cataclysmic explosion we call the Big Bang. All of the matter and energy in the universe had its origins in this event, along with time itself. One second after the Big Bang, the temperature was around ten thousand million degrees, or around ten times hotter than the interior of the Sun." |
Thats right, it was the creation of the universe, or the big bang. 6. The brightest supernova remnant? |
*raise hand* "Can it be SN 1006? |
Nope thats not it, supernova leftovers are quite alot bigger than that... |
Mmh... SN 2004dj? |
"Hmm...I can't name the star...but is it the one that scientists discovered that it became a supernova in...1984?" |
SN 1999, this supernova observed on January 23, 1999, had the brightest gamma-ray burst ever recorded. |
Francis raised her hand, "The crab nebula, which was seen in 1054 AD, is recognized today as the brightest supernova remnant in the sky. Approximately 940 years before the Crab attained its current appearance, a massive star exploded with the power of 400 billion Suns. It left behind a rapidly rotating neutron star and a cloud of ejected gases flying outwards at speeds of 1000 kilometers per second (or 2.2 million miles per hour)." |
SN 1987A was the brightest supernova recorded in the last few centuries. |
Can it be the N132D? |
As two of Kali's guess were already said she guessed another. "Was it the N49?" she said with uncertainty. |
'could it be the horseshoe or swan nebula?' Rosa said, 'that's the same..' she murmured after it. 'it's also called M17 NGC6618' |
Quote:
7. Brightest globular cluster in the Milky Way? |
Peony raised her hand. "Omega Centauri -- the brightest globular cluster in the Milky Way. Within Centauri,it's found that certain metal-rich stars were about two billion years younger than some of their neighbors, implying that the globular cluster must have experienced at least two periods of star formation. Scientists suggest that the cluster was formed in a separate dwarf galaxy, which was then sucked into the Milky Way, stimulating a new burst of star formation." She paused. |
Yes! Well done! *Throws a lolly* 8. Most distant planet with an atmosphere? |
HD 209 458 b, which is situated 150 light-years away in the constellation Pegasus. |
The TrES-1? This extrasolar planet is 500 light years away. It was found in August 2004. (Trans-Atlantic Exoplanet Survey. TrES is pronounced trace.) |
Francis raised her hand, "OGLE-TR-56b ?" |
Quote:
9. Coldest place in the Milky Way? |
Francis raised her hand, "Boomerang Nebula" |
Serena raised her hand, The coldest place in the solar system is the surface of Neptune's largest moon Triton, which has a temperature of -391 degrees Fahrenheit, only 69 degrees Fahrenheit above absolute zero. |
Serena raised her hand again, Oh, the Boomerang Nebula is colder. With a temperature of -272 Celsius, it is only one degree warmer than absolute zero. |
Quote:
9. Nearest globular cluster? |
*raise hand* "M4 in Scorpius. NGC6121?" |
| All times are GMT. The time now is 08:34 PM. |
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.3.2 © 2009, Crawlability, Inc.
Site designed by Richard Harris Design