Tuesday, April 29, 2014

X - Galaxies

After a looong time exploring the solar system, we are finally going to study galaxies :)

1.- Hubble Deep Field:

Watch video here: http://www.astro.umd.edu/~rhc/hdf_video.mov
Source: http://hubblesite.org/newscenter/archive/releases/2004/07/

The Hubble Deep Field (HDF) covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres.

2.- Galaxies in interaction: Simulation vs Observations:


3.- Discussion Summary:






Tuesday, April 15, 2014

IX - HR Diagram and Nebulae

1. The Fate of Stars


Source: http://chandra.harvard.edu/edu/formal/stellar_ev/

2.- Nebulae Classification


3.- Hertzsprung - Russell Diagram






4.- The Milky Way Project

Tuesday, April 8, 2014

VIII - Radiation

0.- Comment on last week's lab - Hydrogen Spectrum:




1.- Super Planet Crash - Can you feel the gravity?




2.- Hertzsprung-Russel Diagram:


3.- Star Size Comparison:


Tuesday, April 1, 2014

VII - More on Coments and the Nature of Light

1.- "The Comet of the Century": Comet ISON


2.- Solar Sunspots:


Butterfly Diagram



Maunder Minimum

Named after the solar astronomers Annie and Walter Maunder (1851–1928) who studied how sunspot latitudes changed with time. The period the husband and wife team examined included the second half of the 17th century. The Maunder Minimum coincided with the middle part of the Little Ice Age, during which Europe and North America were subjected to very cold winters.

Solar Activity Predictions for 2014


3.- The Nature of Light


Solar Spectrum