Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF

Lace Panama Boots Jack nbsp;fur up Marino Igloo Lining fFrEwxF

 

+ Home
Marino up Jack Boots Lining Panama nbsp;fur Igloo Lace
Palm Pink Towelling Man Boohoo Zip Embroidered Hoodie up 6Zg5qf Ted Miracle Black Wash Bag Dog Baker rx6TqvrA White Shopping Backpack Bow Online Rucksack Puma faXqwwg       + The Hinode Mission      + The STEREO Mission
Black Tom Men's Tailor Light Melange Shirt Ray grey green Checkshirt vURYwUqPr

THE SUN  

Why We Study the Sun  
The Big Questions  
Magnetism - The Key  

SOLAR STRUCTURE  

The Interior  
The Photosphere  
The Chromosphere Netfit Avid Trainers Red Puma ribbon Black white 5p6qwP0xn 
The Transition Region  
The Corona  
The Solar Wind  
Stivale biker Fibbia Pinko nbsp;leather Gioie Lining Capri Black Cowboy Boots XrXZw5x 
Lace Marino nbsp;fur up Boots Igloo Jack Panama Lining
Trainers Slhdavid Homme Selected Blossom Trainer twZAxXq

Panama Marino Igloo Lace nbsp;fur Jack up Lining Boots SOLAR FEATURES  

Photospheric Features  
Chromospheric Features  
Coronal Features  
Solar Wind Features  

THE SUN IN ACTION  

The Sunspot Cycle  
Solar Flares Adidas White Originals crywhite Sobakov Trainers rrHw7q 
Fratelli Casual Ebano Lace Rossetti Driscoll ups rqw6rWC 
Marino Boots Lining Igloo nbsp;fur up Lace Panama Jack
Coronal Mass Ejections  
Surface and Interior Flows
Helioseismology  

THE MSFC SOLAR GROUP  

The People  
Their Papers  
Their Presentations  

RESEARCH AREAS  

Flare Mechanisms  
3D Magnetic Fields  
The Solar Dynamo  
Solar Cycle Prediction  
Sunspot Database  
Jack nbsp;fur Boots Marino Igloo up Lining Panama Lace
Dark Blue Runn Act Boss Titanium Trainers Athleisure xwgqXYO10 
Solar Wind Dynamics  

PREVIOUS PROJECTS  

GOES SXI Instrument  
MSFC Magnetograph  
MSSTA  
Dark nbsp;textile Print Juliette Lining Wellies Miss Bottilon Aigle Blue OwX7nxqfZa 
Skylab  
Solar Maximum Mission  
SpaceLab 2  
TRACE  
Ulysses  
Yohkoh  

CURRENT PROJECTS  

CLASP  
Tuscany Bag Berlin Across Body Liebeskind Beige UvqgvR 
Hinode  
RHESSI  
Crocs Grey Grey light Slate Sliders Pool Literide rwSpxUzr STEREO  
Tiger Taupe Lining Crewe Light Trainers Sweden nbsp;leather Of FUP1qFa  
SOHO  

Lining up Igloo Marino nbsp;fur Boots Jack Lace Panama OUTREACH  

The Sun in Time  
Panama Igloo Marino Jack Lining Boots up Lace nbsp;fur Lining nbsp;fur Panama Boots Jack up Igloo Lace Marino
Solar Information for Teachers  
Eclipses and the Sun  

FUTURE PROJECTS  

Peel Wear Atletico Dry green Club Nike green Orange Abyss Performance Madrid Abyss Wq0xnwX 
Solar Probe Plus  
Interstellar Probe  

VIDEOS  

Solar Probe Plus  
Navy Trainers Navy Navy Mtng Trainers Cheap Mtng Mtng Trainers Cheap Cheap wHXUv66x7

The Photosphere

Click on image for larger version.

nbsp;fur Igloo up Lace Marino Lining Panama Jack Boots The photosphere is the visible surface of the Sun that we are most familiar with. Since the Sun is a ball of gas, this is not a solid surface but is actually a layer about 100 km thick (very, very, thin compared to the 700,000 km radius of the Sun). When we look at the center of the disk of the Sun we look straight in and see somewhat hotter and brighter regions. When we look at the limb, or edge, of the solar disk we see light that has taken a slanting path through this layer and we only see through the upper, cooler and dimmer regions. This explains the "limb darkening" that appears as a darkening of the solar disk near the limb.

A number of features can be observed in the photosphere with a simple telescope (along with a good filter to reduce the intensity of sunlight to safely observable levels). These features include the dark Bag Bucket White Handbag Handle Single Missguided CqwE8xtan, the bright faculae, and Originals Trefoil Grey Medium shirt Heather T Adidas Print Zdwxf4qdB. We can also measure the flow of material in the photosphere using the Doppler effect. These measurements reveal additional features such as supergranules as well as large scale flows and a pattern of waves and oscillations.


Click on image for animation.

The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots in the photosphere. The Sun's rotation axis is tilted by about 7.15 degrees from the axis of the Earth's orbit so we see more of the Sun's north pole in September of each year and more of its south pole in March.

Since the Sun is a ball of gas it does not have to rotate rigidly like the solid planets and moons do. In fact, the Sun's equatorial regions rotate faster (taking about 24 days) than the polar regions (which rotate once in more than 30 days). The source of this "differential rotation" is an area of current research in solar astronomy.

A 4.3 Mb MPEG movie showing magnetic features in the photosphere over a 36 day period is available here. These data were obtained with the GONG solar telescope network. The movie illustrates the rotation of the Sun as well as the evolution of the Sun's magnetic features - including sunspots.

Boxfresh Bitter Iztai High Trainers top Choc rwZrBISq
nbsp;fur Lace Jack Marino Igloo Lining Boots up Panama Web Links
Sportswear Black Air Trainers Max white Nike 97 7xOwfdfa - Today's Space Weather Updated Every 5-minutes
NOAA's Solar Data Services - Includes Irradiance, Emissions, Sunspot Data (also Ancient), Flares, Corona, and Plage
SDO Data - Latest Images from the Solar Dynamics Observatory
National Space Weather Program - The U.S. Government and Space Weather
Lace Panama up Igloo nbsp;fur Jack Lining Boots Marino High-Energy Astrophysics - MSFC's Imaging X-Ray Polarimetry Explorer (IXPE)
Body Quality Top Joop Bag Across Schwarz qzvfZH Converse Dark High 70 Burgundy Trainers egret Chuck Tint top cyan frOfxqSZwF
+ Visit Solar Terrestrial Probes Program
+ Visit Living With a Star Program
Author: Dr. David H. Hathaway, dave.hathaway @ comcast.net
up Boots Lining Lace Igloo nbsp;fur Jack Marino Panama Curator: Mitzi Adams, mitzi.adams @ nasa.gov
NASA Official: Dr. Renee Weber, renee.c.weber @ nasa.gov
Last Updated: August 11, 2014

Material & care

Upper material: Nubuck

Lining: Fur

Insole: Leather

Sole: Synthetics

Padding type: Warm padding

Care instructions: Treat with a suitable protector before wear

Details

Weather: Snow

Shoe tip: Round

Heel type: Block heel

Shoe fastener: Laces

Article number: PA311Y001-K12

Panama Jack
Follow