Akron, OH - Dec. 10, 2013
Akron, OH - Dec. 7, 2013
NGC 7319 is a galaxy in Pegasus, member of Stephan’s Quintet. Near the nucleus of NGC 7319 a quasar shines brightly. Quasars are generally described as being super luminous galaxies formed during the early universe, but the reason this quasar is so puzzling is that there is very little absorption of its light due to the effect of the gas and dust of NGC 7319. Perhaps, as some astronomers suggest, some quasars are actually the stripped cores of devoured galaxies that have been subsequently spit out by the surviving galaxy such as NGC 7319.
Many other galaxies seem to have a high number of detected quasars near them. This could be an observational bias or perhaps in this case the light of the quasar just happens to shine through a fortuitous window of NGC 7319.
More information: here.
Credit: NASA, ESA, and the Hubble SM4 ERO Team
One-Armed Spiral Galaxy NGC 4725
While most spiral galaxies, including our own Milky Way, have two or more spiral arms, NGC 4725 has only one. In this sharp color composite image, the solo spira mirabilis seems to wind from a prominent ring of bluish, newborn star clusters and red tinted star forming regions. The odd galaxy also sports obscuring dust lanes a yellowish central bar structure composed of an older population of stars. NGC 4725 is over 100 thousand light-years across and lies 41 million light-years away in the well-groomed constellation Coma Berenices. Computer simulations of the formation of single spiral arms suggest that they can be either leading or trailing arms with respect to a galaxy’s overall rotation. Also included in the frame, a more traditional looking spiral appears as a smaller background galaxy.
Image Data: Subaru Telescope (NAOJ), Hubble Space Telescope,
North America Nebula
Saturn, photographed by Cassini, 12 August 2013.
This is the app I use for stargazing. It’s called Sky Guide and you can buy it for $1.99. I absolutely love it. It’s beautiful and it’s very informative. I have it on my iPhone.
More Moonrise over Akron pics. - 11/20/13
I wonder what’s crossing the moon in the first three pictures?