by APOD Robot » Fri Nov 22, 2013 5:05 am
From California to the Pleiades
Explanation: An astronomical trip from the California Nebula to the Pleiades star cluster would cover just 12 degrees across planet Earth's night sky. That's equivalent to the
angular extent of 25 Full Moons, as your telescope sweeps over the borders of the constellations Perseus and Taurus.
This wide and deep mosaic image of the region explores the cosmic landscape's dusty nebulae and colors
otherwise too faint for your eye to see. On the left, cataloged as NGC 1499, the
California Nebula does have a familiar shape, though its coastline is actually over 60 light-years long and lies about 1,500 light-years away. The nebula's pronounced reddish glow is from hydrogen atoms ionized by luminous blue star Xi Persei seen just to its right. At the far right, the famous
Pleiades star cluster is some 400 light-years distant and around 15 light-years across. Its spectacular blue color is due to the reflection of starlight by interstellar dust. In between are hot stars of the Perseus OB2
association and dusty, dark nebulae along the edge of the nearby, massive
Perseus molecular cloud.
[/b]
[url=http://apod.nasa.gov/apod/ap131122.html][img]http://apod.nasa.gov/apod/calendar/S_131122.jpg[/img] [size=150]From California to the Pleiades[/size][/url]
[b] Explanation: [/b] An astronomical trip from the California Nebula to the Pleiades star cluster would cover just 12 degrees across planet Earth's night sky. That's equivalent to the [url=http://apod.nasa.gov/apod/ap130801.html]angular extent[/url] of 25 Full Moons, as your telescope sweeps over the borders of the constellations Perseus and Taurus. [url=https://www.facebook.com/photo.php?%20fbid=596870153713635&set=a.511542708913047.1073741828.511507152249936&type=1&theater]This wide and deep mosaic image[/url] of the region explores the cosmic landscape's dusty nebulae and colors [url=http://apod.nasa.gov/apod/ap090411.html]otherwise too faint[/url] for your eye to see. On the left, cataloged as NGC 1499, the [url=http://apod.nasa.gov/apod/ap080307.html]California Nebula[/url] does have a familiar shape, though its coastline is actually over 60 light-years long and lies about 1,500 light-years away. The nebula's pronounced reddish glow is from hydrogen atoms ionized by luminous blue star Xi Persei seen just to its right. At the far right, the famous [url=http://apod.nasa.gov/apod/ap031227.html]Pleiades star cluster[/url] is some 400 light-years distant and around 15 light-years across. Its spectacular blue color is due to the reflection of starlight by interstellar dust. In between are hot stars of the Perseus OB2 [url=http://en.wikipedia.org/wiki/Stellar_association#Stellar_associations]association[/url] and dusty, dark nebulae along the edge of the nearby, massive [url=http://en.wikipedia.org/wiki/Perseus_molecular_cloud]Perseus molecular cloud[/url].
[b][table][tr][td=left][url=http://asterisk.apod.com/discuss_apod.php?date=131121]<< Previous APOD[/url][/td] [td=center][url=http://asterisk.apod.com/view_retro.php?date=1122]This Day in APOD[/url][/td] [td=right][url=http://asterisk.apod.com/discuss_apod.php?date=131123]Next APOD >>[/url][/td][/tr][/table][/b]