Nearby Nebulae

Explore the sky to see different HII regions


Click to see the sky in different wavelengths


Above is a view of the sky.  Click on the different buttons to see the sky at different wavelengths.  Clicking on the circled regions will take you to information on specific objects and teach you about a facet of HII regions.

At right are informational pages that provide general information about HII regions, including an Interactive Zone, where you can see what happens to HII regions over time, and how we might be able to age what we see above.



Interactive answers

What are theyHII_Region_Basics.html
How do they expand in timeExpanding_HII_Region.html