Showing posts with label comets. Show all posts
Showing posts with label comets. Show all posts

Sunday, April 18, 2021

Journey Around The Sun: the Story of Halley's Comet by James Gladstone

Journey Around the Sun  tells the story of Halley's Comet from the point of view of the comet.The comet states that it has seen our past and will see our future. In the past, people looked at the comet in wonder, questioning what it was. Aristotle, a famous Greek philosopher, believed it was formed from super hot gases. In the city of Cairo in 898, the comet was called a planet with a tail and was seen for twenty-two days.

The comet notes that it has been given many names: a hairy star by the medieval English monk Eadwine in 1145, a bushy star by Chinese astronomers in 374, and a great sword of flame by the Flemish astronomer Gottfried Wendelin in 1607.

The comet, so often throughout history has been part of drawings and paintings.It notes that it has often been seen as a harbinger of misfortune but it says, "...I am only a comet, neither good nor bad -- a part of nature." 

No one knew that each sighting was of the same comet until Edmond Halley in 1758. Once this was known, people began to watch for the comet and it noted that in the twentieth century, scientists began to take photographs using telescopes. The Giotto probe came within 370 miles of the comet in 1986.

Now the comet is traveling far from the sun but it hopes that those reading this picture book will watch out for it in the future!

Discussion

Journey Around the Sun is a richly illustrated account of Halley's comet, a short period comet that is visible from Earth every seventy-five to seventy-six years. It was Edmond Halley's observations that led him to determine that previous sightings were of the same object. Halley was able to determine that comets seen in 1531, 1607 and 1682 were the same comet and he predicted the comet would return in 1758. Halley didn't live to see its return but it's reappearance was confirmed by Johann Pulitzch on Christmas night in 1758!

Gladstone has crafted an informative picture book that is written from a unique perspective, that of the comet. From this point of view, Gladstone is able to highlight the many changes the comet might have witnessed over many thousands of years, as it journeys past Earth every seventy-five years or so. The narrative also offers readers many interesting facts about Halley's Comet, including various attempts through the centuries to study it. Accompanying this informative text is the beautiful artwork of illustrator Yaara Eshet. Her colourful illustrations bring alive the comet and it's history in a very real way.

James Gladstone indicates in his A Note from the Author that he was able to view Halley's Comet when he was a teenager in 1986 but will only see it again if he lives to be very old. A unique presentation on an interesting natural feature of our amazing universe!

Book Details:

Journey Around The Sun: the Story of Halley's Comet by James Gladstone
Toronto: Owlkids Books    2021

Tuesday, October 1, 2019

What Miss Mitchell Saw by Hayley Barrett

What Miss Mitchell Saw is the story of Maria Mitchell, astronomer extraordinaire. Maria was born and grew up on an island with gull-dappled dunes and fragrant wild roses. Whaling ships returned to the island harbour laden with barrels of oil and homesick sailors. Maria was taught at home by her mother and aided her father as he observed the night sky. Her father's telescope was placed on the roof of their home in Nantucket Town. He taught Maria how to use the telescope, how to observe the sky closely and to sweep each part of the sky carefully. Maria grew to know the stars and the planets, to recognize eclipses and aurora borealis, meteors and comets. Maria also learned how to rate the accuracy of the chronometers used by the whalers.

As an adult Maria taught school and she also became a librarian. However, every night was devoted to observing the night sky. However, one October night Maria discovered a patch of light that was bright but blurry near Polaris. She knew this was a comet and immediately told her father. He immediately sent a letter to Boston, to the astronomers at Harvard Observatory advising of this important discovery. Meanwhile, halfway across the world, in an observatory in Rome, an astronomer-priest had also made the same discovery.

At this time the king of Denmark had a gold medal created to be awarded to whomever discovered a new comet with a telescope. Maria Mitchell eventually was confirmed to be the first to have discovered this comet and was awarded the gold medal!

Discussion

It's wonderful to see so many new picture books telling the little-known stories of women mathematicians, doctors, astronomers, physicists, geologists and scientists whose contributions and efforts have been forgotten or overlooked throughout the centuries. What Miss Mitchell Saw tells the story of astronomer, Maria Mitchell, an American woman astronomer who lived in the middle of the 19th century on Nantucket Island.

Maria was born on August 1, 1818 on Nantucket Island, Massachusetts. She was the third child born to William and Lydia Mitchell. Maria grew up in a Quaker family. Quakers believed that girls as well as boys should receive an education. As a result, Maria's father, who was an astronomer and teacher, was an important influence on her. He taught Maria about the stars, how to use a telescope, and how rate ships clocks - called chronometers. During this era, Nantucket was a major whaling port, so learning this latter task was important as whaling and merchant ships were dependent upon their accuracy.

Learning was an important part of the Mitchell family life. Maria's mother was a librarian, so books were also an integral part of their life and learning. Maria attended Cyrus Pierce's School for Young Ladies until she was sixteen-years-old. Maria's father was an astronomer and a teacher and Maria also became a teacher, teaching young girls math and science.

In 1836, Maria began working as a librarian at Nantucket Atheneum. Her evenings were spent observing the night time sky on the roof of the Pacific National Bank using the family's telescope.  On the night of October 1, 1847, Maria discovered Comet 1847 VI using a two and three-quarter inch refractor telescope. Initially Maria was reluctant to make public her discovery, mainly because she was a woman. However, her father was determined that she should receive recognition for her accomplishment and set about obtaining support for his daughter from friends in various observatories. In the end, Maria's discovery won her the gold medal offered by King Frederick VI of Denmark, who was also an amateur astronomer. Frederick had decided to offer the medal for the first astronomer who made the discovery of a new comet.

Portrait of Maria Mitchel by Herminia B. Dassel
The recognition she received for her discovery changed Maria's life. In 1856, Maria left the Atheneum to travel throughout Europe. She was able to visit Sir Isaac Newton's tomb, the observatory at Cambridge, and to visit Sir George Airy, the astronomer who established the Prime Meridian. In Rome, Maria was able to visit the Vatican Observatory and meet Father Secchi, the Vatican astronomer.

She became a trailblazer for women in society and in the sciences. She was the first woman elected to the American Academy of Arts and Sciences, she was the first professor hired at the newly formed Vassar College, a womens-only college, she was published in academic journals, and was one of the founders of the American Association for the Advancement of Women.

There's no doubt Maria Mitchell made important contributions to the emancipation of women in the sciences. Hayley Barret's picture book focuses only on her discovery of Comet 1847 VI but this discovery was only the beginning for Miss Mitchell. It allowed her to be seen, as Barret points out near the end of her picture book and from there to advance the cause of women in the sciences.To fill out the rest of the story, Barrett includes many more facts about Maria Mitchell at the back in a section titled, "A Bit More About Maria Mitchell - Astronomer, Educator, Activist."

The story of Maria Mitchell is wonderfully illustrated by the starry artwork of Diana Sudyka. Her illustrations make use of a blue, black and silver palatte in keeping with the astronomical theme of the picture book. Sudyka's illustrations were rendered in gouache, watercolour and ink.

 For more information about Maria Mitchell and for resources for students and teachers please check out the Maria Mitchell Association 
This website offers considerable resources about Maria Mitchell as well as suggestions for follow-up research and reading.

image credit: https://www.mariamitchell.org/about/awards/maria-mitchells-gold-medal


Book Details:

What Miss Mitchell Saw by Hayley Barrett
New York: Beach Lane Books   2019