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Astronomy
Page 8
Questions (9,715)
1. In this collection of problems we will try to use what we have learned to see what information about a hypothetical Solar
3 answers
asked by
keitanako
418 views
The volume of a ball is given in terms of its radius by V=(4*pi/3)*R^3. Use this to find the average density of Nursat, i.e. the
1 answer
asked by
keitanako
383 views
What is my Astrological "Sun Sign" and how was it determine if I was born on August 12, 1953.
1 answer
asked by
Barbara
394 views
Why is it possible that the Sun may then have been in a different constellation than your "Sun Sign" on August 12, 1953.
1 answer
asked by
Barbara
406 views
a.According to the Starry Night program, which constellation the Sun was actually in at the instant of a person birth on August
1 answer
asked by
Ann
408 views
Why is it possible to see the planet Mercury at 6:45 pm on February 5, 2014.
1 answer
asked by
Rashida
392 views
What five object were found in the sky on February 5, 2014 at 9 pm.
1 answer
asked by
Ann
412 views
Why is the portion of Venus opposite the direction of the Sun not apparent.
1 answer
asked by
Barbara
378 views
Why is the portion of the Moon opposite the direction of the Sun not apparent?
1 answer
asked by
Barbara
301 views
Why is it possible to see Mercury at 6:45 pm on February 5, 2014?
1 answer
asked by
Carol
317 views
How far will Venus be from Earth on February 19, 2014?
1 answer
asked by
Carol
350 views
What type of spectrum is sunlight?
1 answer
asked by
Barbara
356 views
How can Google Earth be used to access the size of the Earth?
1 answer
asked by
Barbara
378 views
Imagine you are on some far away planetary system looking for planets in the galactic neighborhood and you spot our sun in your
1 answer
asked by
qwerty
421 views
How close to the sun Ganymede would have to be in order to hold water in its atmosphere. (in AU)
1 answer
asked by
qwerty
363 views
Consider dropping a Professor with an estimated mass of 80 kg from a safe, large distance, onto a SMBH with a mass of
1 answer
asked by
keitanako
389 views
Why are there multiple lenses cemented together to form the objective lens and the eyepiece lens?
1 answer
asked by
Rashida
311 views
Rain was once common on Mars.
Probably true Maybe/unclear Probably false
1 answer
asked by
qwerty
335 views
Imagine you are in a spaceship one million km from a black hole of mass kg. Initially you are flying directly away from it at a
3 answers
asked by
qwerty
426 views
True or False? Galaxies are distributed randomly and approximately uniformly in space.
1 answer
asked by
querty
410 views
True or False? The first galaxies formed in the regions where dark matter density was highest.
1 answer
asked by
querty
323 views
What about a for a supernova in an elliptical galaxy of 10^12 solar masses and radius of 50 kpc?
Yes or No
1 answer
asked by
qwerty
358 views
Does the probability that a single-planet system shows transits increase, decrease
or stay the same if the planet has a rather
1 answer
asked by
g
410 views
Given the random orientation of planetary orbits relative to our line of sight, do you expect most or only a minority of all
1 answer
asked by
g
384 views
How do astronomers know whether they are seeing planets or stars when they are distant?
1 answer
asked by
Ben
401 views
A bicycle trip takes 50.4 seconds. What is the average speed of the bicycle?
my work: 50.4/ 680m = 13.49m/s
6 answers
asked by
Frustrated!
402 views
What would be the approximate power-law slope of the 2-point correlation function if all galaxies were situated on thin
1 answer
asked by
Annonymous
389 views
F = GM1M2/R2 = (6.67x10-11 x 1.9891x1030 x 25) / (3000)2 =
1 answer
asked by
Anne
352 views
How can I tell a north circumpolar star from a south circumpolar one based on its declination and my location?
1 answer
asked by
Anonymous
342 views
An astronomical unit can be thought of as...
a 25 light years b 19 earth years c 93 million miles d 100 billion miles
1 answer
asked by
Red
326 views
If a planet were orbiting the Sun in an orbit three times as far as its current orbit, how many times longer would it take the
1 answer
asked by
Astronomy
409 views
Which of the different telescopes designed for the following specific types of electromagnetic waves has to be at the highest
1 answer
asked by
Francis
361 views
How much energy does the Earth receive from the Sun?
1 answer
asked by
Al
319 views
How much of the energy that the Earth receives from the Sun is reflected out into space?
1 answer
asked by
Al
189 views
Of the energy received by the Earth from the Sun, and that is not reflected into space, how is it dispersed?
1 answer
asked by
Al
159 views
On Earth, do we always see half of the Moon illuminated
1 answer
asked by
Sarah
140 views
What causes Cosmic Microwaves Background Radiation (CMB)?
2 answers
asked by
d
84 views
Is the universe getting bigger or smaller
1 answer
asked by
d
50 views
Tamara is viewing an object in space and it appears to have a blueshift. What does she know about this object?
1 answer
asked by
d
47 views
Which if these would be difficult to test scientifically
2 answers
asked by
d
44 views
What is the force is responsible for crushing or collapsing star?
4 answers
asked by
d
60 views
The hottest stars are what color?
1 answer
asked by
d
55 views
What type of galaxy is the oldest
1 answer
asked by
d
60 views
What is the cental, deepest point of a black hole called
1 answer
asked by
d
47 views
What is the industry title given to all government and commercial travel in the air and space
1 answer
asked by
d
51 views
What team is he only one that gets to communicate directly with space personnel on a mission
1 answer
asked by
d
51 views
An eclipse occurs when some celestial body in the heavens moves into the shadow of another celestial body. Earth has two types
5 answers
asked by
Anonymous
3,133 views
Which statement best describes the movement of galaxies in the universe?
Galaxies are moving away from each other, with galaxies
9 answers
asked by
Connexus 6th Grade
3,262 views
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