ASTR LABS and open stax
The first technique that allowed astronomers to find exoplanets involved
measuring changes in the radial velocity (Doppler shift) of the star caused by the pull or orbiting planets
Three kinds of worlds are round in our solar system. Which of the follow is not a type of world that is not typically round?
minor planet
I am facing north and it is about sunset, I see the big dipper to the left of the little dipper. Some time later I see the Big Dipper directly below the little dipper. About how much time has passed?
6 hours
What is the altitude of Polaris as viewed from the North Pole?
90 degrees
D/LAKOTA - FALL (animal)
Keya
D/LAKOTA - Fall
Keya
GREEK - Spring
Leo
Which characteistsic does not relate to the Ojibwe-Loon, Maang constellation
Located in Big Dipper
One of the best ways to learn more about a world is to have samples from its surface to analyze in our laboratories. From which of the following worlds do we not yet have a sample to analyze here on Earth?
Mars
D/LAKOTA - Spring
Oceti
GREEK - Winter
Orion
GREEK - Fall
Pegasus
The height of polaris above the horizon is called the alititude. That is the same as the
latitude
For solid rocky worlds, a general rule is
the larger the world, the slower it cools off and the more it will keep it internal ehat
What is the altitude of Polaris as viewed from Costa Rica?
10 degrees
D/LAKOTA - WINTER (animal)
Buffalo
GREEK - Summer
Cygnus
D/LAKOTA - SPRING (animal)
Fireplace sweat lodge
D/LAKOTA - Summer
Igelska
D/LAKOTA - SUMMER (animal)
Salamander
D/LAKOTA - Winter
Tayamni
One region on earth that has become a rich source of new meteorites in recent decades (including the meteorite from Mars that got famous because some scientists claimed they had found evidence for the building blocks of life on Mars) is:
The antarctic
How can astronomers measure the age of a measure that fell from the skies?
They measure the amount still left of radioactive materials in the meteorite, and how much has turned into decay products
Some of the early planetesimals that formed the solar system still survive today, where would you find such planetesimals
in the asteroid and kuiper belts
The Murchison meteorite that was found in Australia in 1969 is important to scientists because it contained
organic materials, such as amino acids
A key difference between the protoplanets that formed in the outer solar system and those that formed in the inner solar system was that
those in the outter solar system were in a place where ice, not just rock, condensed and thus could grow larger
At 10pm the big dipper is directly to the right of the North Star. What is the location of the big dipper after 24 hours
to the right
