Hisako Koyama's Contributions to Astronomy

In 1944, amateur astronomer Hisako Koyama began sketching the sun's surface, unknowingly creating a vital record of solar activity. Her work, spanning over four decades and comprising ten thousand drawings, has been instrumental in reconstructing 400 years of sunspot activity, dating back to Galileo. This video explores Koyama's significant contributions to astronomy and invites viewers to learn more about her legacy.

What year did Hisako Koyama start her astronomical observations?

• 1954

• 1944

• 1964

• 1974

How many years did Hisako Koyama dedicate to her sunspot sketches?

• Three decades

• Five decades

• Two decades

• Four decades

What was the primary focus of Hisako Koyama's sketches?

• Lunar phases

• Planetary movements

• Sunspot activity

• Comet paths

How far back in history did Koyama's work help scientists trace sunspot activity?

• To the 16th century

• To the 17th century

• To the 18th century

• To the 15th century

What is the significance of Hisako Koyama's work?

• It helped in discovering new planets.

• It provided a detailed record of solar activity.

• It led to the invention of the telescope.

• It was the first record of lunar eclipses.