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Astronomy Picture of the Day -- NGC 7023: The Iris Nebula
NASA ^ | September 29, 2012 | (see photo credit)

Posted on 09/29/2012 6:53:10 PM PDT by SunkenCiv

Explanation: Like delicate cosmic petals, these clouds of interstellar dust and gas have blossomed 1,300 light-years away in the fertile star fields of the constellation Cepheus. Sometimes called the Iris Nebula and dutifully cataloged as NGC 7023 this is not the only nebula in the sky to evoke the imagery of flowers. Still, this remarkable image shows off the Iris Nebula's range of colors and symmetries in impressive detail. Within the Iris, dusty nebular material surrounds a hot, young star. The dominant color of the brighter reflection nebula is blue, characteristic of dust grains reflecting starlight. Central filaments of the dusty clouds glow with a faint reddish photoluminesence as some dust grains effectively convert the star's invisible ultraviolet radiation to visible red light. Infrared observations indicate that this nebula may contain complex carbon molecules known as PAHs. The bright blue portion of the Iris Nebula is about six light-years across.

September 29, 2012

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; irisnebula; ngc7023; science
[Credit & Copyright: Tony Hallas]

1 posted on 09/29/2012 6:53:20 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
Ooooh! Polycyclic Aromatic Hydrocarbons!

2 posted on 09/29/2012 6:55:16 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

perfectly LOVELY!

thank You, Civ!


3 posted on 09/29/2012 6:59:59 PM PDT by left that other site (Worry is the Darkroom that Develops Negatives.)
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To: SunkenCiv

WOW!


4 posted on 09/29/2012 7:13:17 PM PDT by bimboeruption (Clinging to my Bible and my HK.)
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To: bimboeruption
I personally prefer this Globular Cluster

Can you perceive the Irish One?

5 posted on 09/29/2012 7:17:34 PM PDT by Young Werther (Julius Caesar said "Quae cum ita sunt. Since these things are so.".)
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To: Young Werther

Those heavenly bodies definitely merit further study.


6 posted on 09/29/2012 7:23:21 PM PDT by JediJones (KARL ROVE: "And remember, this year, no one is seriously talking about ending abortion.")
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To: Young Werther; JediJones

Those are quite some “fertile star fields” you pictured there.... “heavenly bodies” indeed.


7 posted on 09/29/2012 7:26:41 PM PDT by dayglored (Listen, strange women lying in ponds distributing swords is no basis for a system of government!)
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To: SunkenCiv
I always try to imagine what these gorgeous formations might look like from another angle. Spiral galaxies are easy, but one-of-a-kind nebulae often defy the imagination.

But it's fun to try.... :)

Thanks for the pings to these wonderful photos.

8 posted on 09/29/2012 7:28:59 PM PDT by dayglored (Listen, strange women lying in ponds distributing swords is no basis for a system of government!)
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To: Young Werther
Now we're talking serious Asstronomy!

Looking over my shoulder to make sure Mrs. Cajun is not standing behind me.

9 posted on 09/29/2012 7:29:51 PM PDT by The Cajun (Sarah Palin, Mark Levin......Nuff said.)
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To: Young Werther

No.


10 posted on 09/29/2012 7:31:29 PM PDT by bimboeruption (Clinging to my Bible and my HK.)
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To: SunkenCiv

well something that magnificient probably just sprang up out of nothing...no intelligent design there at all...or just maybe...


11 posted on 09/29/2012 7:32:06 PM PDT by terycarl
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To: SunkenCiv
There HAS to be some kind of space rapture astronauts need to be aware of.

Send ME out there and I'll allow myself to be mesmerized into oblivian.

12 posted on 09/29/2012 7:40:32 PM PDT by knarf (I say things that are true ... I have no proof ... but they're true)
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To: SunkenCiv

This looks suspiciously like the painting the little dog did. He called it The Blue Boy. He was ripping off Gainsburough. He was painting with his tail....the dog, not Gainsburough. I don’t know, maybe Gainsburough had a tail. You never see a photo of him. Time enough to paint but no time for a photograph. Personally, I like his Mona Lisa better. The dog’s I mean. I don’t know, maybe Gainsburough painted the Mona Lisa. If he didn’t have time for a photo then he for sure didn’t have time to list all his paintings. I guess I’ll have another drink with him...the dog I mean. He can’t paint for squat but he’s a darn good bartender.


13 posted on 09/29/2012 7:51:20 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
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To: Young Werther

No redheads......


14 posted on 09/29/2012 7:59:21 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: Young Werther

Irish gal on the left, clearly.

Do you have more test questions of similar import and challenge?


15 posted on 09/29/2012 8:15:04 PM PDT by One Name
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To: SunkenCiv

You’re right. I love this one.


16 posted on 09/29/2012 8:21:53 PM PDT by TheOldLady
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