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Planetary Nebula NGC 2440 Lithograph
The Planetary Nebula NGC 2440 lithograph

The information in this document was accurate as of the original publication date.

Audience: Educators
Grades: 11-12
Product Number:STScI EG-07-02 LG-2007-7-114-GSFC

At the end of their lives, low-mass stars expand in size and become red giants. Then they shed their outer layers and become planetary nebulae. The image of NGC 2440, a planetary nebula, is on the first page of the lithograph. Background information about the life cycle of stars is on the second page. The lithograph includes a Level One Inquiry activity entitled "In Search of ... Stellar Death," in which students learn to determine the end of the life cycles of different types of stars.

Planetary Nebula NGC 2440 Lithograph [688KB PDF file]

More lithographs in this series:
Carina Nebula Pillar
Core of Omega Centauri (NGC 5139)
Star-forming Nebula NGC 3603
Supernova Remnant SNR 0509 Lithograph
The Hubble Ultra Deep Field