Explanation: A mere seven hundred light years from Earth, toward the constellation Aquarius, a sun-like star is dying. The dying star's last few thousand years have produced the Helix Nebula (NGC 7293), a well studied and nearby example of a Planetary Nebula, typical of this final phase of stellar evolution. Combining narrow band image data from emission lines of hydrogen atoms in red and oxygen atoms in blue-green hues, it shows tantalizing details of the Helix, including its bright inner region about 3 light-years across. The white dot at the Helix's center is this Planetary Nebula's hot, central star. A simple looking nebula at first glance, the Helix is now understood to have a surprisingly complex geometry.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Helix Nebula - Tumannost' Ulitka - NGC 7293 Publikacii so slovami: Helix Nebula - Tumannost' Ulitka - NGC 7293
Sm. takzhe: NGC 7293: tumannost' Ulitka Tumannost' Ulitka ot teleskopa CFHT Tumannost' Ulitka ot teleskopov "Blanko" i "Habbl" Tumannost' Ulitka v svechenii vodoroda i kisloroda Tumannost' Ulitka v infrakrasnom svete Kometa PanSTARRS i tumannost' Ulitka Tumannost' Ulitka Vse publikacii na tu zhe temu >>