The word 'planet' comes from a Greek word meaning....?
Anonymous Quiz
21%
A. fuzzy snowball
35%
B. wanderer
26%
C. large meteor
18%
D. atlas
Which large but faint constellation, containing a pair of bright globular clusters, M13 and M92, is named for a Roman hero?
Anonymous Quiz
15%
A. Boötes
45%
B. Orion
18%
C. Cygnus
21%
D. Hercules
Approximately how many miles away is the moon from earth?
Anonymous Quiz
51%
A. 338,660 miles
22%
B. 1,833,900 miles
16%
C. 238,866 miles
11%
D. 96,077 miles
The distances used in astronomy are truly beyond imagination and space is just getting bigger and bigger! We really don't have much idea as to what is out there. Which of the following is considered to be the boundary of our solar system?
Anonymous Quiz
33%
A. Andromeda spiral
42%
B. Oort cloud
22%
C. LMC
3%
D. Charon
What is the largest star within 1,000 light-years of our solar system?
Anonymous Quiz
24%
A. Kappa
15%
B. Acinimod
20%
C. Thgrib
41%
D. Betelgeuse
Most people know that Jupiter has a "Great Red Spot". What is actually happening in the spot?
Anonymous Quiz
30%
A. A tornado
49%
B. A high-pressure storm
14%
C. A volcanic eruption
6%
D. Nothing
Which of the following is not a type of nebula?
Anonymous Quiz
32%
A. radioactive nebulae
20%
B. planetary nebulae
23%
C. dark nebulae
24%
D. reflection nebulae
Name the book written by Ptolemy.
Anonymous Quiz
25%
A. Al Ramem
33%
B. Las Universalis
29%
C. De Corpuns Ptolemis
13%
D. Almagest
✨Stars with really strong gravity cause themselves to become smaller and smaller and eventually turn into black holes✨
#Blackhole
👉 @AstroMechanics
#Blackhole
👉 @AstroMechanics
✨The Milky Way’s super massive black hole, Sagittarius A, is around 4 million times the mass of the Sun. Some cosmologists think it could take up a region of space just 1/10th of Earth’s orbit✨
#Blackhole
👉 @AstroMechanics
#Blackhole
👉 @AstroMechanics
✨Our galaxy probably contains at least 2 billion planets like earth🌍.
@AstroMechanics
@AstroMechanics
✨Gamma rays are produced in the hottest and most violent events in the universe such as the birth of a black hole. Gamma rays have the most energy of any other part of the electromagnetic spectrum, and have a wavelength shorter than the width of an atom. Gamma ray light is lethal and can easily damaging human DNA. Gamma ray light cannot be reflected with mirrors as the waves will pass right between the atoms of the mirror✨
#Light
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#Light
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Only 5% of the universe is made up of normal matter, 25% is dark matter and 70% is dark energy. #Universe 👉 @AstroMechanics
✨Helium is the only substance in the universe that cannot be in solid form. It can’t be cold enough✨
#Fact
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#Fact
👉 @AstroMechanics