Nearby Nebulae

Infrared - IRIS

This view of the sky comes from the Infrared Astronomical Satellite (IRAS), which surveyed the sky at 12, 25, 60 and 100 µm.  Like WISE, this view is in the infrared, but at longer wavelengths.  Infrared wavelengths highlight dusty features, making the HII regions more visible.

Click to see the sky in different wavelengths

Rosette_Multistars.html
Orion_Blister_geometry.html

WWT

Explore the sky to see different HII regions

Interactive answers

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