Mysteries of the Sun

[Drone]

2433 looks like a gibbon.

it probably isnt one though.

2433 has already disappeared but 2434 exploded today

Lower left

 

[CAPSLOCKSTUCK]

2433 has already disappeared

SHIT...thats one less gibbon then

Several gibbon species are threatened by imminent extinction in the very near future. Gibbons not only include the most endangered apes but also the most endangered primate species of the world. The main reasons for this are habitat loss and degradation, hunting and illegal trade. Preservation of the tropical forest is imperative to gibbon survival - if it disappears, so do the gibbons. In China, for instance, the gibbons have already lost 99% of their habitat. In addition, they are hunted for food and for use in local medicine. Also, the illegal pet trade is thriving across the whole of Southeast Asia. Young gibbons are popular pets, but in order to obtain a young animal, its mother must be shot down from the tree tops. Often both mother and infant are killed in this process
http://www.gibbonconservation.org/03_threats_engl.html

 

[Drone]

Pretty cool video

 

[Drone]

Prominence

 

[Atomic77]

I don't know if you heard but theres this big hole in the sun thats 50,000 earths wide.

 

[Drone]

I don't know if you heard but theres this big hole in the sun thats 50,000 earths wide.

Coronal holes were posted a lot in this thread. And what do you mean 50,000 earths wide?

The Sun is about 109.2 times as large as Earth, in terms of diameter.

new images:

 

[Drone]

Sun facts:

http://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html
http://www.suntrek.org/sun-as-a-star/sun-and-earth/comparing-size-sun-and-earth.shtml
http://www.windows2universe.org/sun/sun_size_distance.html
http://glossary.spaceweather.com/the-richter-scale-of-solar-flares/

And C4 class flare

 

[Drone]

Sun featured a very long filament that stretched at least half way across the Sun (Oct. 20-22, 2015). Filaments are elongated clouds of plasma that are tethered above the Sun by magnetic forces. They are often unstable and usually break apart in less than a week, though they can last longer than that. Filaments are darker than most of the Sun's surface when viewed in extreme ultraviolet light, as it is here.

 

[Drone]

Interesting research:

Earth was hit by two extreme solar storms more than 1000 years ago

Researchers found traces of a rapid increase of radioactive carbon in tree rings and ice core. Everywhere on Earth you can find traces of cosmic rays from the Galaxy and the sun, such as low levels of radioactive carbon.

 

[Drone]

As a pair of active regions began to rotate into view, their towering magnetic field lines above them bloomed into a dazzling display of twisting arches (Oct. 27-28, 2015). Some of the lines reached over and connected with the neighboring active region. Active regions are usually the source of solar storms. The images were taken in a wavelength of extreme ultraviolet light.

 

[Drone]

There is a monster spot on the sun. AR2443 has more than quadrupled in size since it first appeared on Oct. 29th, and it now stretches more than 175000 km from end to end.

The sunspot has more than a dozen dark cores, many of which are as large as terrestrial continents - and a couple as large as Earth itself.

Solar Prominence on October 30, 2015!
Image taken by Philippe TOSI

 

[Drone]

GIANT SUNSPOT HIDES SPACESHIP: Sunspot AR2443 is so big, it is attracting the attention of astrophotographers around the world

It's getting bigger and bigger

 

[Drone]

Time to take some heat .. literally. It never hurts to revise simple things.

The source of heat for our planet is the sun. The sun's energy moves through space, then through the earth's atmosphere and finally reaches the earth's surface. The sun's radiation warms the earth's atmosphere and surface and becomes heat energy. This heat energy is transferred through the atmosphere by one of three mechanisms:

Radiation​

This type of heat transfer can be observed on sunny days. Your face will feel warm when you are standing in the sun. The sunlight is absorbed by your face and warms you face, without warming the air around you. The energy from the sun that is absorbed by your face is called radiant energy or radiation. Radiation is the transfer of this heat energy by electromagnetic waves.

Most of the electromagnetic radiation from the sun is in the form of visible light. Light is made up of waves of different frequencies. These frequencies are interpreted by our brain as colors. Infrared waves and ultraviolet waves are two types of waves from the sun that we cannot see.

Solar radiation mostly passes through the atmosphere and is absorbed by all objects, such as humans, trees, flowers, roads, etc. These objects will then warm up. Dark objects, such as asphalt roads, will absorb and warm faster than light colored objects, which reflect the radiation back to space. All substances emit radiation, but this emitted radiation will be at a longer wavelength that our eyes cannot see. This emitted radiation, called infrared radiation, can be absorbed by the atmosphere. A substance's temperature will determine which wavelength of radiation the substance will emit and also the rate of emission. The higher the substance's temperature, the shorter the wavelength of the emitted radiation (think of how a burner on an electric stove turns from black to red as it heats up). Also, the higher the substance's temperature, the greater the emission rate of radiation.

Conduction​

Conduction is the transfer of heat from one molecule to another within a substance. Remember that temperature is just the measure of the average kinetic energy or speed of the molecules in a substance. Imagine you are holding a metal pin between your fingers and you place this pin in a flame. The pin absorbs the energy from the flame and the molecules inside the pin begin to move faster (warmer temperature). These faster moving molecules cause adjoining molecules to move faster and will eventually cause the molecules in your fingers to move faster. The heat is now being transferred from the pin to your finger and your finger will heat up. This is an example of heat transfer through conduction. When heat is transferred through conduction, it flows from warmer to colder regions and will transfer more rapidly with greater temperature differences. The rate of heat transfer through conduction also depends on whether the substance is a good conductor. It turns out that air is an extremely poor conductor of heat. Therefore, conduction is only important in the atmosphere within the first several millimeters closest to the surface. How then does the air transfer energy from one region to another?

Convection​

Convection is the transfer of heat through the movement of a fluid, such as water or air. This type of heat transfer can occur in liquids and gases because they move freely, making it possible to set up warm or cold currents. Convection occurs naturally in the atmosphere on a warm, sunny day. As the earth's surface absorbs sunlight, certain portions of the surface absorb more than other portions. The earth's surface and the air near the surface heat unevenly. The warmest air expands, becomes less dense than the surrounding cooler air, becomes buoyant and rises. These rising "bubbles" of warm air, called thermals, act to transfer heat up into the atmosphere. Cooler, heavier air then flows toward the surface to replace the warm air that just rose. When the cooler air reaches the surface, it is warmed and it too eventually rises as a thermal. This circulation is referred to as a convective circulation or thermal cell. These thermals can result in cloud formation.

​

Convection transfers heat vertically into the atmosphere. In order for heat to be transferred to other regions, it must be transferred horizontally by the wind. The horizontal transfer of heat by the wind is called advection.

Clouds typically form when air rises. The reduction in pressure as air rises causes the air to expand and cool. Rising motion can be associated with convection in unstable air, lifting of air over topography, or lifting of air by fronts. When air rises, the air's temperature cools and may reach its dewpoint temperature, at which point it becomes saturated. Once saturation is reached, condensation occurs and the water vapor in the air will condense into tiny water droplets. As millions of droplets form, a cloud will begin to take shape.

 

[CAPSLOCKSTUCK]

conduction, convection and radiation in Wendys Nightmare (my PC)

(just because i had it all set up as i saw @Drone post)

and yes the vid says my name and no i dont care, come and see what a warm welcome you will receive in the valleys where half the population have been drinking and eating magic mushrooms and the other half have been eating magic mushrooms and drinking.

 

[Drone]

Sun is so restless these days, flare after flare! New images by SOHO and SDO and a video

 

[Drone]

Sun in ... UHD

 

[Drone]

On gears around an uncaring sun
It doesn't know what it gave
As the bone moon winds 'round again​

Isaac Brock​

Nov. 9th, the magnetic canopy of sunspot AR2449 erupted, producing an M3-class solar flare and a bright CME. Radio emissions from shock waves in the CME suggest that it blew away from the sun faster than 950 km/s. The Solar and Heliospheric Observatory recorded the expanding cloud. The CME is not heading directly for Earth.

 

[Drone]

Filament suspended by magnetic forces above the sun's surface. From end to end, the structure stretches > 300 000 km.

Numerous tongues of plasma lashing out as the competing magnetic forces grappled with each other.

 

[Drone]

Another burst

 

[Drone]

Magnificent image of Solar spots in 2001. Unfortunately back in the day I wasn't interested in this beautiful nuclear reactor that still manages to make me happy. So sorry that I wasted so much time I really hope it's not too late. Whatever fuck this shit, I'm not caving in.

And here's amazing video: Highlights from SOHO's 20 Years in Space. Well done!

 

[Drone]

 

[Drone]

short but nice educational videos by Nova PBS

 

[Drone]

SDO: Year 6 Ultra-HD

Download UHD 60 fps (50 GB lolwut wtf)

Video covers a time period of January 2, 2015 to January 28, 2016 at a cadence of one frame every hour, or 24 frames per day. This timelapse is repeated with narration by solar scientist Nicholeen Viall and contains close-ups and annotations.

 

[Caring1]

SDO: Year 6 Ultra-HD
Video covers a time period of January 2, 2015 to January 28, 2016 at a cadence of one frame every hour, or 24 frames per day. This timelapse is repeated with narration by solar scientist Nicholeen Viall and contains close-ups and annotations.

Great video, and very fitting music, the commentary answered my questions before I could write them down.

 

[Drone]

An elongated solar prominence rose up above the Sun and slowly unraveled over 17 hours (Feb. 3, 2016). Prominences are clouds of gas suspended above the Sun by magnetic forces. You can see the plasma streaming along the magnetic field lines before it thins out and gradually breaks away from its tethers. The images were taken in a wavelength of extreme ultraviolet light.

Sun today