Quick memory stuff Flashcards
Example of an impactor probe
DEEP IMPACT
Sent to comet temple 1
Results showed the material was fine - more like ‘talcum powder than sand’ and composition of materials ejected were analysed.
Example of a fly-by probe
NEW HORIZONS
pluto (outer solar system)
Took measurements of Plutos atmosphere
Example of an orbiter
JUNO
Jupiter
It has equipment designed to measure the composition, magnetic field, mass and gravity of the planet
Example of an lander
PHILAE
comet 67p
It managed to take some analysis of water-rich surface chemicals
What is the lifecycle of stars
Which star does electron pressure occur in?
What is electron degeneracy pressure?
The strong gravity means electrons are more compact
What will happen if a white dwarf surpasses the Chandrasekhar limit
If the pressure can no longer hold the gravity after this point it will become a neutron star
Which star does neutron pressure occur in?
What happens in a neutron star?
In a neutron star electrons and protons combine to form neutrons
Which star does radiation pressure occur in?
State why neutron stars are not plotted on the Hertzsprung-Russell diagram
They do not have a spectral type (no absorption spectra)
It is possible for water to exist as a liquid below the surface of Enceladus and Europa.
Analyse the data in Figure 9 in order to explain this statement
The moons generate internal heat (1)
from tidal gravitational forces (1)
Liquid water is not thought to exist in the nucleus of the comet 67P.
Analyse the data in Figure 9 in order to explain this statement.
does not experience tidal forces (1)
because it does not orbit close to a gas giant planet (1)
Where will the lagrangian points be plotted?
Significance of lagrangian points?
Combined gravity of both bodied = centripetal force needed to maintain circular motion
Roche limit
The minimum distance to which a large satellite can approach a large body without being torn apart
Astrometry
Transit method
Radial velocity
Which planet is Encaledeus in orbit with?
Saturn
