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Niceguy2
  • Rank:Diamond
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Date Posted:03/06/2014 11:29 PMCopy HTML

I really love this site and 
this is an awesome photo!
Kind of makes me realize how
small this planet Earth is....
Joe


Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2014 March 6
See Explanation.  Clicking on the picture will download the highest resolution version available.

NGC 1333 Stardust 
Image Credit & Copyright
Al Howard

Explanation: NGC 1333 is seen in visible light as a reflection nebula, dominated by bluish hues characteristic of starlight reflected by dust. A mere 1,000 light-years distant toward the heroic constellationPerseus, it lies at the edge of a large, star-forming molecular cloud. This striking close-up view spans about two full moons on the sky or just over 15 light-years at the estimated distance of NGC 1333. It shows details of the dusty region along with hints of contrasting red emission from Herbig-Haro objects, jets and shocked glowing gas emanating from recently formed stars. In fact, NGC 1333 contains hundreds of stars less than a million years old, most still hidden from optical telescopes by the pervasive stardust. The chaotic environment may be similar to one in which our own Sun formed over 4.5 billion years ago.

Niceguy2 #6201
  • Rank:Diamond
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Re:Astronomy Picture of the Day

Date Posted:01/09/2026 3:00 AMCopy HTML

2026 January 8
See Explanation.  Clicking on the picture will download
the highest resolution version available.

IC 342: Hidden Galaxy in Camelopardalis
Image Credit & Copyright: Gaetan Maxant

Explanation: Similar in size to large, bright spiral galaxies in our neighborhood, IC 342 is a mere 10 million light-years distant toward the long-necked, northern constellation Camelopardalis. A sprawling island universe, IC 342 would otherwise be a prominent galaxy in our night sky, but it is hidden from clear view and only glimpsed through the veil of stars, gas and dust clouds along the plane of our own Milky Way galaxy. Even though IC 342's light is dimmed and reddened by intervening cosmic clouds, this sharp telescopic image traces the galaxy's own obscuring dust, young star clusters, and glowing star forming regions along spiral arms that wind far from the galaxy's core. IC 342 has undergone a recent burst of star formation activity and is close enough to have influenced the evolution of the local group of galaxies and the Milky Way.


Niceguy2 #6202
  • Rank:Diamond
  • Score:347960
  • From:USA
  • Register:01/12/2009 5:00 AM

Re:Astronomy Picture of the Day

Date Posted:01/10/2026 4:24 AMCopy HTML

2026 January 9
See Explanation.  Clicking on the picture will download
the highest resolution version available.

Ice Halos by Moonlight and Sunlight
Image Credit & Copyright: Antonella Cicala

Explanation: Both Moon and Sun create beautiful ice halos in planet Earth's sky. In fact, the two brightest celestial beacons are each surrounded by a complex of ice halos in these photos of the sky above Chamonix-Mont-Blanc in France. The panels were recorded one night (left) and the following day at the end of December 2025. Similar ice halos appear in moonlight and sunlight because they are all formed through the geometry of flat, hexagonal ice crystals. The ice crystals reflect and refract light as they flutter in the cold atmosphere above the mountain resort. In the pictures both Moon and Sun are surrounded by a more commonly seen 22 degree circular halo. Bright and sometimes colorful patches at the intersections of the 22 degree circular halos with the indicated parselenic and parhelic arcs are also known as Moon dogs and Sun dogs. (Editor's note: Annotations updated by Marcella Pace)


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