Astronomy Picture of the Day

Doomed Star Eta Carinae

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#57742 by @ 29.11.2004 00:00 - nach oben -
Doomed Star Eta Carinae

Eta Carinae may be about to explode.

But no one knows when - it may be
next year, it may be one million years from now.

Eta Carinae's mass - about
100 times greater than our Sun -
makes it an excellent candidate for a full blown supernova.

Historical records do show that about 150 years ago Eta Carinae underwent an unusual outburst
that made it one of the brightest stars in the southern sky.

Eta Carinae, in the
Keyhole Nebula, is the only star currently
thought to emit natural LASER light.

This image, taken in 1996, resulted from sophisticated
image-processing procedures designed to bring out new details in the
unusual nebula that surrounds
rogue star

Now clearly visible are two
distinct lobes, a hot central region, and strange radial streaks.

The lobes are filled with lanes of gas and
dust which absorb the blue and
ultraviolet light emitted near the center.

The streaks remain unexplained.
Will these clues tell us how the nebula was formed?

Will they better indicate when Eta Carinae will explode?

Credit & Copyright
#57991 by @ 30.11.2004 23:40 - nach oben -
i möcht gern emol ä supernova mit eigene augä gseh. diä letscht sichtbar i üssere galaxie isch im joht 1054 gsi.

nur so am rand gseit...
#57993 by @ 30.11.2004 23:48 - nach oben -
wele rand?
#58088 by @ 01.12.2004 19:41 - nach oben -
das frog i mi au. weisch es du?
#58091 by @ 01.12.2004 20:05 - nach oben -
de hinedra denks...
#58093 by @ 01.12.2004 20:12 - nach oben -
aber döt hets zwei. nimmi jetzt dä gruä oder dä blau rand? was mi no wür interessierä wär: muess dä rand offä oder zue si?