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

Skip to comments.

Astronomy Picture of the Day -- Fibrils Flower on the Sun
NASA ^ | February 17, 2015 | (see photo credit)

Posted on 02/17/2015 5:31:12 AM PST by SunkenCiv

Explanation: When does the Sun look like a flower? In a specific color of red light emitted by hydrogen, as featured here, some regions of the solar chromosphere may resemble a rose. The color-inverted image was taken in 2014 October and shows active solar region 2177. The petals dominating the frame are actually magnetically confined tubes of hot plasma called fibrils, some of which extend longer the diameter of the Earth. In the central region many of these fibrils are seen end-on, while the surrounding regions are typically populated with curved fibrils. When seen over the Sun's edge, these huge plasma tubes are called spicules, and when they occur in passive regions they are termed mottles. Sunspot region 2177 survived for several more days before the complex and tumultuous magnetic field poking through the Sun's surface evolved yet again.

February 17, 2015

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science
[Credit and Copyright: Big Bear Solar Obs., NJIT, Alan Friedman (Averted Imagination)]

1 posted on 02/17/2015 5:31:13 AM PST by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

Looks like a flower!


2 posted on 02/17/2015 5:44:36 AM PST by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

It does! As the pic came up initially, I was looking at something else, and hadn’t seen the description. “Oh great, another terrestrial shot?” crossed my lips.


3 posted on 02/17/2015 5:48:55 AM PST by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
2015 APoD Calendar
The Big One

4 posted on 02/17/2015 5:49:37 AM PST by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
[ Post Reply | Private Reply | 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