#ic2169

[clavius]

でんでん虫.

いっかくじゅう座にある淡くて青い反射星雲.

暗黒星雲と組み合わせた様子から通称「かたつむり星雲」

さて、でんでん虫に見えるかな？

[traverse-our-universe]

IC2169/IC447; reflection Nebula

by Kees Scherer on Flickr.

[brightestofcentaurus]

IC 2169

IC 2169 is a reflection nebula found towards the constellation Monoceros, the Unicorn. Reflection nebula are simply interstellar clouds of dust that reflect starlight from nearby stars. As short wavelengths of light are scattered more easily by the dust, the regions tend to shine blue.

In this image, IC 2169 can be seen on the right, while the Cone Nebula, S Monocerotis, and an associated emission nebula span the left side of the image. Open star cluster Trumpler 5 is also visible slightly below the center of the image. The Cone Nebula points up to S Monocerotis (S Mons), a quadruple system of hot, massive stars that shine blue-white in the center of the emission nebula, which shows characteristics of star forming regions.

Image from National Geographic, information from NASA.

[spacettf]

Cone nebula, Trumpler 5 and IC2169 by cybermystic on Flickr.