The Hydrogen Atom – Student Guide
The Hydrogen 21-cm Emission Line
The Hunt for Epsilon Eridani c to Study its Earthly
The human race has made great strides in the last few centuries
The Human Orrery - Armagh Observatory
The Hubble Ultra Deep Field Project Overview
The Hubble Space Telescope - the first 10 years
The Hubble Space Telescope
The Hubble Redshift Distance Relation
The Hubble Mission - Indiana University Astronomy
The Hubble Deep Field (HDF)
The Hubble Deep Field (HDF)
The HR Diagram Interpreted: Properties of Stars
The HR Diagram Interpreted (PowerPoint version)
The HR Diagram and Stars Worksheet
The HR Diagram - Faculty Web Pages
The HR Diagram - Faculty Web Pages
The HR Diagram (PowerPoint version)
THE HR DIAGRAM
The HR Diagram
