APOD: From California to the Pleiades (2013 Nov 22)

Comments and questions about the APOD on the main view screen.
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APOD: From California to the Pleiades (2013 Nov 22)

Post by APOD Robot » Fri Nov 22, 2013 5:05 am

Image 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.

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Beyond » Fri Nov 22, 2013 5:14 am

From California to the Pleiades. Idaho what's between them, but it looks good also. :mrgreen:
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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Ann » Fri Nov 22, 2013 5:51 am

Oh, this is such a lovely picture! So colorful!

And the picture is so detailed and just fantastically widefield, like an incredible map over a huge stretch of sky.

What a great image! Welcome back, Rogelio Bernal Andreo! :D :D :D :D :D

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by orin stepanek » Fri Nov 22, 2013 1:31 pm

Beautiful picture; a keeper! + 8-) :clap: :yes: :thumb_up: :thumb_up:
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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by neufer » Fri Nov 22, 2013 2:17 pm


Art Neuendorffer

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by phoenix900 » Fri Nov 22, 2013 3:00 pm

Is it a big deal that it emits nuclei?

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by cxd207 » Fri Nov 22, 2013 3:03 pm

RHCP reference - very nice!

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Ann » Fri Nov 22, 2013 3:10 pm

neufer wrote:

Where's the Pleiades?

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Psnarf » Fri Nov 22, 2013 3:18 pm

https://en.wikipedia.org/wiki/File:PerseusCloudMap.png [switching between the full-size APOD and this map...my head exploded again]
That's a big cloud!

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Boomer12k » Fri Nov 22, 2013 3:27 pm

Wow, nice image...

Between, as described in the caption...is the Perseus OB2 molecular cloud complex...

I could not find much on this region on the web...maybe did not look far enough....however....

http://www.wunderground.com/wximage/vie ... &number=42

Shows a different view...California Nebula is at the top...what a star field!!

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Cousin Ricky » Fri Nov 22, 2013 3:44 pm

Psnarf wrote:https://en.wikipedia.org/wiki/File:PerseusCloudMap.png [switching between the full-size APOD and this map...my head exploded again]
That's a big cloud!
The map at Wikipedia/Perseus and the map at the Hawaii an Astronomical Society/TheSky disagree on which star is Atik and which star is Menkib (though the Bayer labels agree). I consider Sky & Telescope and the IAU to be reliable authorities, so the TheSky wins this round.

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Cousin Ricky » Fri Nov 22, 2013 3:50 pm

Ann wrote:
neufer wrote:

Where's the Pleiades?
Cherry Hill, New Jersey. (So that would place IC 348 in western South Dakota.)

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Ann » Fri Nov 22, 2013 7:13 pm

Cousin Ricky wrote:
Psnarf wrote:https://en.wikipedia.org/wiki/File:PerseusCloudMap.png [switching between the full-size APOD and this map...my head exploded again]
That's a big cloud!
The map at Wikipedia/Perseus and the map at the Hawaii an Astronomical Society/TheSky disagree on which star is Atik and which star is Menkib (though the Bayer labels agree). I consider Sky & Telescope and the IAU to be reliable authorities, so the TheSky wins this round.
My software says that Atik is Omicron Persei, the upper of the two prominent stars between the California Nebula and the Pleiades in today's APOD.

Anyway, Atik is surrounded by splendidly many-colored nebulosities. That's so beautiful!

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Antik Hay

Post by neufer » Fri Nov 22, 2013 8:07 pm

Image
Cousin Ricky wrote:
The map at Wikipedia/Perseus and the map at the Hawaii an Astronomical Society/TheSky disagree on which star is Atik and which star is Menkib (though the Bayer labels agree). I consider Sky & Telescope and the IAU to be reliable authorities, so the TheSky wins this round.
Ann wrote:
My software says that Atik is Omicron Persei, the upper of the two prominent stars between the California Nebula and the Pleiades in today's APOD. Anyway, Atik is surrounded by splendidly many-colored nebulosities. That's so beautiful!
http://en.wikipedia.org/wiki/Omicron_Persei wrote:
<<Omicron Persei (ο Per) is a star in the constellation Perseus. It has the traditional name Atik (also Ati, Al Atik, Arabic for "the shoulder"). Atik is a spectroscopic binary star consisting of a spectral type B1 giant and a type B3 dwarf orbiting each other every 4.5 days. Some sources, including Starry Night (planetarium software), an atlas, and a web site attribute the name Atik to the nearby, brighter star Zeta Persei. Omicron Persei is perhaps best known from the animated television series Futurama, where it is the solar system of the Omicronians- a race of giant horned toad creatures. Its eighth planet is ruled by the despotic leader, Lrrr, who loudly and frequently announces the name of his home system.>>
http://en.wikipedia.org/wiki/Xi_Persei wrote:
<<Xi Persei (ξ Per) is a star in the constellation Perseus. It has the traditional name Menkib (from Mankib al Thurayya: Arabic for "shoulder" [of the Pleiades]). Menkib has an apparent magnitude of +4.06 and is classified as a blue giant (spectral class O7.5III). It is approximately 1800 light years from Earth. It is visually 12,700 times brighter than the Sun with absolute magnitude -5.5. If we include the ultraviolet light that emanates from Menkib its total, bolometric, luminosity is 263,000 times that of the Sun. The star has a mass of some 30 solar masses and a surface temperature of 35,000 kelvins, making it one of the hottest stars that can be seen with the naked eye.>>
Art Neuendorffer

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by mmcmlln@gmail.com » Sat Nov 23, 2013 3:37 am

Thanks for the great photos and information. I do like the little moon for size comparison in the top right hand corner. Or maybe I just hadn't noticed it before, but it's excellent reference for a mug amateur. Ta for that. Marianne

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Re: APOD: From California to the Pleiades (2013 Nov 22)

Post by Arcturus » Thu Dec 05, 2013 12:01 am

Just another outstanding wide field mosaic from Rogelio Bernal Andreo. A flawless image, beautiful colors, unusual composition, great detail, master processing.
As I already noted in other forums, congrats Rogelio.