Encyclopedia > Helix Nebula

Article Content

Helix Nebula

In astronomy, the Helix Nebula is one of the closest planetary nebulae to Earth.

It lies 140 parsecs or 450 light-years from Earth in the Aquarius constellation and has an angular diameter[?] of about 0.5°.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Anna Karenina

... respectively. This is the occasion the first meeting of Anna and Vronsky. As they, Anna and Countess Vronsky are leaving the station there is a railway suicide of ...