Thursday, February 24, 2011

Quarter 3 Astronomy Bio

Dictionary of Scientific Biography.  C. Gillispie, editor.  Charles Scribner's Son, publisher. 1981


Kendall, Phebe. "Maria Mitchell." Pine Tree Web Home Page. Web. 22 Feb. 2011. <http://www.pinetreeweb.com/maria-mitchell.htm>.           
Quarter 3 Astronomer
Maria Mitchell was born on August 1, 1818 in Nantucket, Massachusetts.  Her father was a member of the Quaker religion and he felt strongly that girls should receive education equal to that of boys.  At sixteen, Maria was already a teaching assistant to a schoolmaster.  At seventeen, she decided to open her own school.  She rented a room and put an advertisement in the newspaper.  But the school was closed when Maria took a job as the librarian of Nantucket’s Atheneum Library.  Maria’s father built an observatory on his room and installed a brand new four inch telescope.  He made star observations for the United States Coast Guard and Maria helped her father take these measurements. 
            Maria was very intelligent and even had the sky memorized.  Her observation skills were also impeccable.  One night in the Autumn of 1847, Maria looked at the sky through the telescope and saw a star five degrees above the North Star and she knew there hadn’t been a star there before.  She thought that it might be a comet so she recorded its coordinates.  When she checked again the next night, sure enough, it had moved and she knew it had to be a comet.  Her father wrote a letter to Professor William Bond at Harvard University to tell him about Maria’s discovery.  The king of Denmark had offered a gold medal to any person who discovers a comet seen only through a telescope.  Therefore, Professor Bond submitted Maria’s name to the king.  But Father Francesco de Vico of Rome had discovered the comet two days later than Maria and he had been awarded the prize before the news of Maria’s discovery had arrived in Europe.  But one year later, it was decided that Maria deserved the award.  The comet was named “Miss Mitchell’s Comet.” 
            Maria continued to work as a librarian but her fame was spreading.  She was receiving letters of congratulations from scientists and tourists were coming to take a look at the miraculous woman astronomer.  In 1848, she was voted as the first woman member of the American Academy of Arts and Sciences.  The same happened with the Association for the Advancement of Science in 1850.  In 1849, she took a job with the U.S. Nautical Almanac Office as a computer (the one who does the computations) of tables of positions of the planet Venus.  She also started traveling to attend scientific meetings.
            In 1856, a rich man named General Swift offered Maria the chance to accompany his daughter Prudence on a trip to the South and to Europe.  Maria accepted the offer and took her almanac work with her.  Together they went to New Orleans, then to London where Maria got to visit the Greenwich Observatory.  Prudence returned to the United States but Maria decided to stay in Europe.  She ventured to France on her own and then traveled to Rome with Nathaniel Hawthorne’s family.  Her hopes of visiting the Vatican Observatory were dashed when she received the news that women were not admitted.  She managed to eventually get special permission but was only granted the right to visit in the daytime.  She was never able to look at the stars through the telescope at night.  When she got home, she was given a new telescope bought with money raised for women for the first woman astronomer of the United States.  She used it to study sunspots and other astronomical events.
            In 1965, she became a professor of astronomy and director of the college observatory at the newly opened Vassar College in Poughkeepsie, New York.  There, she had access to a twelve-inch telescope which was the third largest in the United States.  She often extended an invitation to her students to come up to the observatory at night and watch meteor showers or other astronomical events.  (Sounds a lot like you, Mr. Percival)  Maria continues her own research in studying the surface features of Jupiter and Saturn.  She was also interested in photographing stars.  In 1869, she became the first woman elected to the American Philosophical Society.  In 1873, she helped found the American Association for the Advancement if Women and served as its president from 1874 to 1876.  In 1873, she attended the first meeting of the Women’s Congress.  The Congress also hosted many women’s rights activists such as Elizabeth Cady Stanton, Susan B. Anthony, Lucy Stone, Dr. Elizabeth Blackwell, Antoinette Brown Blackwell, etc.
            Maria retired from Vassar in 1888 because of her deteriorating health.  She died on June 28, 1889 in Lynn, Massachusetts.  The Maria Mitchell Association on Nantucket, founded in 1902, was developed by her friends and supporters after her death.  She was elected to the Hall of Fame of Great Americans at New York University (now at Bronx Community College) in 1905.  In 19954, she was elected to the National Women’s Hall of Fame in Seneca Falls, New York. 



 

Tuesday, February 22, 2011

Quarter 3 observation 4

I observed the sky from my front yard on Saturday, February 19th at 9:30 pm.  The sky was completely dark but no stars were visible.  The moon was in the southeastern part of the sky and was in the full moon phase.  The moon was really bright and looked white.

Quarter 3 observation 3

I came to the observation session at pine view on sunday night, february 20th.  I looked through the telescopes and everything and used the binoculars to locate first magnitude stars such as algol, etc.  We were also able to locate many constellations such as auriga, triangulum, perseus, orion, taurus, etc as well as the pleiades and hyades.

Friday, February 18, 2011

APOD 3.5

On Valentines Day 2011 the Sun had one of its most powerful explosions which was an X-class flare.  The blast was the largest so far in the new solar cycle.  It erupted from active region AR 1158 in the Sun's southern hemisphere and the flare is shown here in this extreme ultraviolet image from the Solar Dynamics Observatory.  The intense burst of electromagnetic radiation momentarily overwhelmed pixels in the Solar Dynamic's detector causing the bright vertical blemish.  This X-class flare also had a coronal mass ejection which is a massive cloud of charged particles traveling outward at nearly 900 kilometers per second.

Thursday, February 17, 2011

Astro Bio Quarter 3 Sources

Bois, Danuta. "Maria Mitchell." Women's Biographies: Distinguished Women of Past and Present. 1996. Web. 17 Feb. 2011. <http://www.distinguishedwomen.com/biographies/mitchell.html.>
 
"Maria Mitchell." Female Ancestors - Find Female Ancestors. Web. 17 Feb. 2011. <http://female-ancestors.com/daughters/mitchell.htm>.
 

Wednesday, February 16, 2011

Quarter 3 observation 2

on friday february 4th I went out and observed the sky from my friends back yard.  it was around 8 p.m. when i was observing and the sky was completely dark. I couldnt see the moon so it was in the new moon phase. I could see many stars and was even able to identify a few constellations.

Quarter 3 observation 1

on saturday january 29th I went out and observed the sky from my front yard at around 8 p.m.  the phase of the moon was a waning crescent. I couldnt see many stars because there was still some fog lingering in the sky.

Friday, February 11, 2011

APOD 3.4

This is a photo where a cloud appears to be different colors.  This is a rare phenomenon known as iridescent clouds and it can show unusual colors vividly or a whole spectrum of colors at the same time.  These clouds are formed with small water droplets of nearly the same size.  When the Sun is in the right position and mostly hidden by thick clouds, these thinner clouds significantly diffract sunlight in a nearly coherent manner, with different colors being deflected by different amounts.  Thus, different colors will come to the observer from slighly different directions.  Many clouds start with uniform regions that could show iridescence but quickly become too thick, too mixed, or too far from the Sun to show these different colors.  This photo was taken last year from the Top of the World Highway outside Dawson CIty, in the Yukon Territory in Northern Canada.

Friday, February 4, 2011

APOD 3.3

This infrared portrait is from the WISE spacecraft.  It is a photo of the runaway star Zeta Ophiuchi which produces the arching interstellar bow wave or bow stock.  It is about 20 times more massive than the Sun and it lies near the center of the frame, moving toward the top at 24 kilometers per second.  It has a strong stellar wind that precedes it, compressing and heating the dust interstellar material and shaping the curved shock front.  Relatively undisturbed clouds of material lie around it.  Zeta Oph is though to have been a member of a binary star system at one time, and its companion star was more massive and shorter lived.  When the other star exploded as a supernova (losing mass), Zeta Oph was flung out of the system.  About 460 light-years away, Zeta Oph is 65,000 times more luminous than the SUn and would be one of the brighter stars in the sky if it werent surrounded by dust.