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Class Notes for Astronomy at University of California - Berkeley

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ASTRON C10 Lecture Notes - Lecture 4: Redshift
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8:30 - 10:00 Monday - Wed. Campbell Hall 6th floor Star Viewing Lyman: UV Balmer (Hydrogen): visible Paschen: IR (infrared) Doppler Effect: can tell you radial velocity of an object; speed the object moves away from us...

Astronomy
ASTRON C10
Alex Filippenko
ASTRON C10 Lecture Notes - Lecture 19: Acronym, Tangled, Stellar Classification

The Sun - Our Nearest Star The Suns Outer Parts Photosphere - visible surface of the sun (lowest level of atmosphere) - Temperature is hottest at the core, gets cooler as you get farther from the center ...

Astronomy
ASTRON C10
Alex Filippenko
ASTRON C10 Lecture Notes - Lecture 19: The Cooler, Tangled, Stellar Atmosphere

Most of the stars of are visible to the naked Most are C like or ) Most Exoplanets ...

Astronomy
ASTRON C10
Alex Filippenko
ASTRON C10 Lecture Notes - Lecture 18: Impact Winter, Grilling, Atmospheric Circulation

: - t " " Collisions Mass Extinctions Not all have orb...

Astronomy
ASTRON C10
Alex Filippenko
ASTRON C10 Lecture Notes - Lecture 18: Minimum Mass

Exoplanets Planets that orbit around other stars Large planets are always easier to detect smaller planet because: they reflect more star light they induce a greater gravitational field ...

Astronomy
ASTRON C10
Alex Filippenko
ASTRON C10 Lecture Notes - Lecture 2: Cambrian Explosion, Astronomical Unit, Kuiper Belt

Time Scales and Distance Asteroids Swarm of belts Kuiper Belt: Icy Definitions Light Year (Ly): Distance light travels in one year: about 10 trillion km (10 x 10 km) Star: Nuclear reactions from its c...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 3: Compton Scattering, Low Frequency, Spectroscopy

Name SID Disc Sec Number GSI Name Stabled Scale models of the Universe Nearest Star 4.2LY Milky Way 10^5 LY diameter Light White light through a prism Roy G. Biv Red, Orange, Yellow, Gre...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 4: Black-Body Radiation, Redshift

Read 2.4 in textbook Look at patterns of absorption or emission lines to see electron emission. Lyman 1st level Balmar 2nd level Pachen 3rd Doppler Effect Determine radial velocity Moving emitter of waves Stationary emi...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 5: Lunar Phase, Quarter Moon

The Moon (memorize and understand slide is always lit up The side facing the sun We see phases The side that is lit up isnt always the one thats facing us Only during full...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 6: Solar Eclipse Of April 8, 2024, Lunar Phase, Apsis

Solar Eclipse (watch first 15 minutes of lecture but Alex geeking out) If the moon were its current distance (Q) You wouldnt see the entire corona The moon would block the suns disk and the inner corona Total Eclipse On av...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 7: Deferent And Epicycle, Celestial Pole

Constellations: specific groups of stars 88 constellations; largely greek origin Polaris - coincides very closely with the North Celestial Pole Some stars are fixed to the celestial sphere How long the star stre...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 8: Galilean Moons, Semi-Major And Semi-Minor Axes, Copernican Revolution

Copernican Revolution Seasons: The tilt is important but it doesnt mean that different parts of earth are closer to the sun. The sun is up higher and has a beam that intersects less with the ground. Opposite in northern an...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 9: Iron Fertilization, The Moons, Geochronology

The Moon The same side of the moon faces the earth at all time. The moons orbit and rotation are in synch The tidal distortions as the moon spun quickly rapidly dissipated the moons fast rotation speed The Moon (384,000 km...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 10: Speed, Circular Motion, Orbital Period

Ptolemy Continuous, limited and periodic, its possible to replicate any planets orbit Any can be reproduced with sins and cosines More accuracy using Venus phases Keplers Laws 1. Planetary Orbits are ellipses with the sun ...

Astronomy
ASTRON C10
Alexei Filippenko
ASTRON C10 Lecture Notes - Lecture 11: Kepler (Spacecraft), 51 Pegasi, 16 Cygni

General Relativity Any mass or energy warps the shape of space or the passage of time Gravity: following its path in space and time. Gravitational Waves When two objects orbit each other. They s...

Astronomy
ASTRON C10
Alexei Filippenko

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