APOD: 2023 June 11 Б The Sun and Its Missing Colors
Explanation:
Here are all the
visible
colors of the
Sun,
produced by passing the Sun's light through a
prism-like device.
The spectrum was created at the
McMath-Pierce
Solar Observatory
and shows, first off, that although our
white-appearing
Sun emits light of nearly every color, it appears brightest in yellow-green light.
The dark patches in the
featured spectrum arise from gas at or above the
Sun's surface
absorbing sunlight emitted below.
Since different types of gas
absorb different colors of light,
it is possible to determine what gasses compose the Sun.
Helium, for example, was
first
discovered
in 1870 on a solar spectrum and only
later found here on
Earth.
Today, the majority of
spectral absorption lines have been identified - but
not all.
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.
