Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Astronomy Picture of the Day - NGC 7023: The Iris Nebula
NASA ^ | 25 Jul, 2024 | Image Credit & Copyright: Robert Shepherd

Posted on 07/25/2024 10:42:52 AM PDT by MtnClimber

Explanation: These cosmic clouds have blossomed 1,300 light-years away in the fertile starfields of the constellation Cepheus. Called the Iris Nebula, NGC 7023 is not the only nebula to evoke the imagery of flowers. Still, this deep telescopic image shows off the Iris Nebula's range of colors and symmetries embedded in surrounding fields of interstellar dust. Within the Iris itself, 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 reflection nebula glow with a faint reddish photoluminescence as some dust grains effectively convert the star's invisible ultraviolet radiation to visible red light. Infrared observations indicate that this nebula contains complex carbon molecules known as PAHs. The dusty blue petals of the Iris Nebula span about six light-years.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 07/25/2024 10:42:52 AM PDT by MtnClimber
[ Post Reply | Private Reply | View Replies]

To: MtnClimber

2 posted on 07/25/2024 10:43:09 AM PDT by MtnClimber (For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; Agatsu77; America_Right; ...
Pinging the APOD list

🪐 🌟 🌌 🍔


3 posted on 07/25/2024 10:43:43 AM PDT by MtnClimber (For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: MtnClimber

Looks like an iris eating a hamburger (irises are lactose intolerant...)


4 posted on 07/25/2024 11:02:21 AM PDT by null and void (I identify as a conspiracy theorist. My personal pronouns are told/you/so.)
[ Post Reply | Private Reply | To 3 | View Replies]

To: null and void
Looks like an iris eating a hamburger (irises are lactose intolerant...)

In astronomy terms that would be a cheeseburger with no cheese.

5 posted on 07/25/2024 11:49:19 AM PDT by MtnClimber (For photos of scenery and wildlife, click on my screen name for my FR home page. More photos added.)
[ Post Reply | Private Reply | To 4 | View Replies]

To: MtnClimber

LOL!


6 posted on 07/25/2024 5:08:36 PM PDT by Deaf and Discerning
[ Post Reply | Private Reply | To 5 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson