This photo shows a double eclipse of the sun. Last Friday was noteworthy because part of the Earth was treated to a rare total eclipse of the Sun. But also on Friday, from a part of the Earth that only saw part of the Sun eclipsed, a second object appeared simultaneously in front of the Sun (International Space Station). Which only occured for .6 seconds. It looks at if the moon has some sort of cool tattoo.
Looking Up
Tuesday, March 24, 2015
apod 3.8
This photo shows a double eclipse of the sun. Last Friday was noteworthy because part of the Earth was treated to a rare total eclipse of the Sun. But also on Friday, from a part of the Earth that only saw part of the Sun eclipsed, a second object appeared simultaneously in front of the Sun (International Space Station). Which only occured for .6 seconds. It looks at if the moon has some sort of cool tattoo.
Friday, March 20, 2015
apod 3.7
Saturday, March 14, 2015
apod 3.6
Wednesday, March 4, 2015
Asaph Hall Biography
Asaph Hall Biography
Asaph Hall was born in
Goshen, Connecticut. His family was poor and Hall attended local schools and
was partly educated by his father. He seems to have enrolled in College in 1853
to study geometry and algebra, but is it unclear whether he completed his degree.
He taught in a Wisconsin school for several years before entering Michigan
University, where he only completed one trimester. After a brief teaching post
in Ohio, Hall became a student at Harvard.
Hall married Angeline
Stickney in 1656 and, one year later he took up the post of an assistant
astronomer at Harvard College Observatory in Cambridge, Massachusetts. Hall
made a name for himself as an expert in working out orbits. In 1862 he made the
move to the US Naval Observatory at Foggy Bottom, on the banks of the Potomac
River, near Washington D.C. Although he started as an assistant astronomer he
was made a full professor within twelve months. He was awarded the rank of
captain and taught mathematics at the Naval College.
Hall
led many astronomical expeditions over the next twelve years. He was based in
the Bering Sea (1869) and in Sicily (1870) for the solar eclipses. He observed
the transits of Venus from Vladivostok (1874) and San Antonio, Texas (1882).
Back at the Naval Observatory, he was in charge of the largest refracting
telescope in the World at the time. He noticed a “spot” on Saturn that allowed
him to work out the planet’s rotation time. He also studied the orbit of
Saturn’s moon, Hyperion, and recognised that it was a retrograde orbit.
In 1877, Hall had been looking for satellites orbiting Mars for some time and he was ready to give up his quest. It was his wife who convinced him to keep looking. The very same night he saw what could have been taken to be a faint star near Mars. Hall realized that this was, in fact, a moon. One week later he discovered a second moon, closer to Mars but brighter than the other moonusing what was then the world's largest refracting telescope. At the suggestion of Henry Madan, the science master at Eton College in England, Hall named these moons Phobos and Demos (meaning literally, fear and terror), each about 18 miles in diameter. Hall received accolades from Nature and Scientific American, the Royal Astronomical Society's Gold Medal, and he was named the Naval Observatory's Professor of Mathematics by President Abraham Lincoln. He also traveled to Vladivostok, Russia in 1874 and San Antonio, Texas in 1882 to observe two transits of Venus. Though often asked, Hall refused to ever write a book.
In 1877, Hall had been looking for satellites orbiting Mars for some time and he was ready to give up his quest. It was his wife who convinced him to keep looking. The very same night he saw what could have been taken to be a faint star near Mars. Hall realized that this was, in fact, a moon. One week later he discovered a second moon, closer to Mars but brighter than the other moonusing what was then the world's largest refracting telescope. At the suggestion of Henry Madan, the science master at Eton College in England, Hall named these moons Phobos and Demos (meaning literally, fear and terror), each about 18 miles in diameter. Hall received accolades from Nature and Scientific American, the Royal Astronomical Society's Gold Medal, and he was named the Naval Observatory's Professor of Mathematics by President Abraham Lincoln. He also traveled to Vladivostok, Russia in 1874 and San Antonio, Texas in 1882 to observe two transits of Venus. Though often asked, Hall refused to ever write a book.
Monday, March 2, 2015
Planetary Nebulae
the dumbell nebula m27, in the Vulpecula constellation.
this is the Saturn nebula located in the constellation Aquarius
this is the stingray nebula located 18,000 light years away and is the youngest known nebula.
![M57 The Ring Nebula.JPG](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_sROO4hNhv2rfbiKwAxNLKZKfjszS5gqClF3nhCXRWLPDG-GCcvLmmQ1evIZrwWTnJ94rgAeLAwouHnfZw8o04Nwm6e-SQW1pGGNAPXdl3YHcU8oQ0hzsxNOIDtv0jjPIXPJo75SoT_IvRZFpbyYLUSNptu2Cw9TSuJ89ECnKDCZ0fsQjrjOuY0Xj9puJN6CKXI=s0-d)
this is ring nebula m57 located in the constellation lyra.
this is the egg nebula located 3,000 light years away in the Cygnus nebula.
![The image's organization is similar to that of a cat's eye. A bright almost pinpoint white circle in the center depicts the central star. The central star is encapsulated by a purple and red irregularly edged, elliptically shaped area that suggests a three dimensional shell. This is surrounded by a pair of superimposed circular regions of red with yellow and green edges, suggesting another three dimensional shell.](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vjC3nvcljNKyjaJ5pH6DTFM6sls1bi8TxrLrBbL2NVE7lJ2MW0iU9128ycII1y4wxhkkzD35NO4CrTR9zAeRdrecuZKwgCKnDPTe8fKQ3Q2AqMm-WGiBGgL1bBf3BPfIqOTzD9zBbrPMlPPRXUdlgC3aNvYswLcGWx=s0-d)
here we have the Cat's eye nebula located in the constellation Draco.
![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_u7tULpbew-9dZkER2RX5rfyiau0-uDXq04s2MTzsM2-DU_OJxcIVoDA9mOE0xkclPAYkdAtNamitMPqKPescCsUkV74JthSeQhSomSwlPqm7x9xE7OUZLOJWHU0x4uIDAdmy2Jxj4Zp7FG4-yAYwDm_NTzW66DJdp_OZHF=s0-d)
This is the planetary nebula NGC 6326 in the constellation Ara
![Spherical shell of colored area against background stars. Intricate cometary-like knots radiate inwards from the edge to about a third of the way to the center. The center half contains brighter spherical shells that overlap each other and have rough edges. Lone central star is visible in the middle. No background stars are visible.](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_sqlt3e37be0b_BmLsP-qZbykNBRgGg9djGEw392XgzOxgVZvckDacxs_dKZ4eAJnP7ncTkULfGB3Uebcz4E1ssOj7O6DFZGyuoH6xI3n4dcanOj3s1DlHL5ysWrXXT2UqB8PNIM-N6xBRTzOTbaJLeXv4OVblzx2FQ=s0-d)
Here we have the Eskimo Nebula located 2,870 light years away in the Gemini Constellation.
![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_v7LzQMPnZAmhrSuz9wo1BsCogq0FX1A7IS-O1hWP0VZUe8LcQvhsMFHMfpJgT2wnq824Fjt1452nZnRscS8vwhPgJ0kkcr2KGTMGtMtdDup-TL0hGMxxQAPdYksojAxhFtfJcLX0gbqEawGaeT620=s0-d)
This is the Helix nebula located in the constellation Aquiarius. It is ~ 694.7 light years away.
![IC 289 Geckzilla.jpg](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vXihTPDNDjNA2VHh7kE_LVh_MmYCGAAGmpP6Hlic7ZjIcFZpSBmZAPc97zUohLBGlvE4OEOqQJYA1Sz3f5ReyS5YTqRowjxphSCGXCTd2sMthX9NXMgCMR_rpO53NtxERSki7YnyWiaKwpisdDIkTvnvqAof5zFwHSEmeXiJR2Z9ark8B5FAfEFQw=s0-d)
This is the IC 289 planetary nebula located in the constellation Cassiopeia.
here we have the Cat's eye nebula located in the constellation Draco.
This is the planetary nebula NGC 6326 in the constellation Ara
Here we have the Eskimo Nebula located 2,870 light years away in the Gemini Constellation.
This is the Helix nebula located in the constellation Aquiarius. It is ~ 694.7 light years away.
This is the IC 289 planetary nebula located in the constellation Cassiopeia.
Wednesday, February 25, 2015
Asaph Hall Biography Sources
http://www.britannica.com/EBchecked/topic/252601/Asaph-Hall
http://www.uapress.arizona.edu/onlinebks/MARS/CHAP05.HTM
http://www.uapress.arizona.edu/onlinebks/MARS/CHAP05.HTM
Thursday, February 19, 2015
apod 3.5
This week's APOD is titled Mobius Arch Moonrise. February moons shine through the clouds in this picture. A night skyscape is visible towards the left of the sky. Orion is visible at the right of this picture, which is known as a famous northern constellation. Jupiter is towards to center at the top of this picture as well. Jupiter is also known as the solar system's top notch gas giant. Under Jupiter is Big Dog, Sirius, which is the alpha star in this constellation.
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