Tag: open cluster

Top 24 Deep Space Pictures of 2011

By Phil Plait | December 14, 2011 5:30 am

CATEGORIZED UNDER: Astronomy, Cool stuff, Pretty pictures

A cluster's masquerade

By Phil Plait | September 8, 2011 6:40 am

When I first saw this picture of NGC 2100, I thought it was a globular cluster. But I was wrong. That happens sometimes. Still, it’s worth it to see such a magnificent photo:

Yegads! What a shot! [Click to enstellarnate.]

Globular clusters are tightly packed collections of thousands of stars in a roughly spherical shape (hence their name), and are generally very old. But upon second glance, the stars of NGC 2100 in this image didn’t look quite right to me. There didn’t appear to be enough, for one thing, and though they’re highly concentrated in the center, the distribution around the core seemed off somehow.

Turns out that’s correct. Read More

CATEGORIZED UNDER: Astronomy, Pretty pictures
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