Friday, February 28, 2014

APOD 3.7

February 27, 2014
Venus now appears as our planet's morning star above the horizon before dawn. The lunar crescent passed in front of Venus in West Africa during the sunrise. This image was captured right before the occultation began under the skies of Yunnan Province. This is easily visible to the naked eye in the Earth's sky. This looks very awesome because it looks as if the moon looks incredibly large in comparison to Venus and the Moon covers Venus in some parts of the Earth sky.

Monday, February 24, 2014

Q3 Astronomer Sources: James H. Jeans

http://www.britannica.com/EBchecked/topic/302187/Sir-James-Jeans

http://www-history.mcs.st-and.ac.uk/Biographies/Jeans.html

http://www.infoplease.com/encyclopedia/people/jeans-sir-james-hopwood.html

http://biography.yourdictionary.com/sir-james-hopwood-jeans

Friday, February 21, 2014

APOD 3.6

The long jet of the lighthouse nebula
Lighthouse nebula was formed by the wind of a pulsar, which is a magnetized neutron star. Energetic particles generated by the pulsar are swept back into the wind's tail that trails up to the left. This image was taken by the Chandra X-Ray Observatory. Both pulsar and expanding remnant debris field are the aftermath of the core-collapse-explosion of a massive star, with the pulsar moved out by the supernova explosion. This is really cool because it shows the image through an x-ray telescope and clearly shows what is going on in the picture.

Friday, February 14, 2014

APOD 3.5

IC 1805: Light From the Heart    
Emission nebula IC 1805 is a mix of interstellar gas and dark dust clouds about 7500 light years away in the Perseus spiral arm. This region's nickname is the Heart Nebula, and derives its name from its heart shape. The clouds are shaped by stellar winds and radiation from massive hot stars in the star cluster Melotte 15. This image maps the light of narrow emission lines from the atoms in the nebula. The heart shape is really cool looking and pretty coincidental that this apod was put out on Valentine's Day.

Friday, February 7, 2014

APOD 3.4

February 5, 2014
NGC 2683: Edge-On Spiral Galaxy
The spiral galaxy NGC 2683 is very like our own Milky Way Galaxy. This galaxy lies 20 million light-years in the Lynx constellation. NGC 2683 is seen from data and images combined from the Subaru telescope and the Hubble Space Telescope. Other galaxies are littered throughout the background. The galactic core is blended light from a large amount of old yellow stars. The blue glow in the galaxy are young star clusters. This is a very interesting image because it is nearly identical to our own Milky Way Galaxy and just looks super cool.