Question
This astronomer names a unit roughly equal to 27.27 Earth days that measures the rotation of the Sun based on sunspot motion at a latitude of 26 degrees. For 10 points each:
[10h] Name this astronomer whose observation of a very bright solar flare in September 1859 led to the ensuing geomagnetic storm being called his namesake “Event.”
ANSWER: Richard Carrington [accept Carrington Event]
[10e] The Carrington Event led to these phenomena unusually being observed at latitudes near the equator. The interaction of solar wind and the Earth’s magnetic field forms these light displays in the sky.
ANSWER: auroras [or aurorae; accept aurora borealis or aurora australis; prompt on northern lights or southern lights]
[10m] The Carrington Event was presumably caused by plasma being released from this layer of the Sun, leading to a flare. The SOHO mission images this layer’s namesake magnetic loops.
ANSWER: corona [accept coronal mass ejections or coronal loops]
<Other Science>
Summary
| 2024 ACF Winter at UC Berkeley | 2024-11-16 | Y | 2 | 25.00 | 100% | 100% | 50% |
| 2024 ACF Winter at Lehigh | 2024-11-16 | Y | 1 | 20.00 | 100% | 100% | 0% |
| 2024 ACF Winter at Northwestern | 2024-11-16 | Y | 9 | 18.89 | 100% | 67% | 22% |
| 2024 ACF Winter at Online | 2024-11-16 | Y | 8 | 18.75 | 100% | 63% | 25% |
| 2024 ACF Winter at UBC | 2024-11-16 | Y | 3 | 16.67 | 100% | 67% | 0% |
| 2024 ACF Winter at Central Florida | 2024-11-16 | Y | 5 | 18.00 | 100% | 60% | 20% |
| 2024 ACF Winter at Oxford | 2024-11-16 | Y | 9 | 20.00 | 100% | 78% | 22% |
Data
| Berkeley B | Stanford A | 10 | 10 | 10 | 30 |
| Stanford M | Stanford L | 0 | 10 | 10 | 20 |