|
These gas vortices on the Sun can be Earth-sized or larger & last for months |
sunspots
|
$1,200 |
DJ |
ASTRONOMY |
2024-04-02 |
#9072 |
|
In 1996 the sun went an exceptional 36 days without a visible one of these dark patches |
Sunspots
|
$600 |
DJ |
ASTRONOMY & SPACE |
1997-02-07 |
#2870 |
|
The ancient Chinese thought these dark areas on the Sun looked like flying birds |
sunspots
|
$400 |
DJ |
ASTRONOMY |
1993-07-19 |
#2061 |
|
Johann von Lamont connected fluctuations in the Earth's magnetic field to these solar disturbances |
sunspots
|
$400 |
DJ |
ASTRONOMY |
1992-03-30 |
#1756 |
|
Consisting of an umbra & a penumbra, these disturbances can cluster to become 200,000km across |
sunspots
|
$800 |
DJ |
ASTRONOMY |
1987-06-15 |
#656 |