Intravenous therapy (IV therapy or iv therapy in short) is the infusion of liquid substances directly into a vein. Intravenous simply means within vein.
While the photosphere hovers around 5,800 kelvin, the temperature of the chromosphere varies between 4,500 K and 20,000 K. Even though itâs more distant from the center of the Sun, the chromosphere is hotter than the photosphere.he photosphere is the region of the Sun that we see. It measures an average temperature of almost 5,800 kelvin and produces the visible radiation. This is the point where photons generated inside the Sun can finally leap out into space. The chromosphere measures just 2,000 km, and itâs just outside the photosphere.
I found some info about sunspots on the web at. http://solar.physics.montana.edu/YPOP/Program/sunspot.html. Here's what I found, in a nutshell: Sun spots typically have a temperature of 3900 degrees Celsius, while the photosphere has a temperature of about 5500 degrees Celsius.