Stars give off a variety of radiation, including visible light, ultraviolet light, infrared radiation, and X-rays. This radiation is a result of nuclear fusion processes happening within the star's core, which produce immense amounts of energy that are then radiated outwards into space.
they are magnetic
The hottest stars primarily emit electromagnetic waves in the form of ultraviolet (UV) radiation. These stars, with surface temperatures exceeding 30,000 Kelvin, have significant energy output in the UV spectrum, which is much higher than that of cooler stars. Additionally, they also emit X-rays and visible light, but their peak radiation is typically in the ultraviolet range due to their high temperatures.
The gravitational pressure and heat created by gravity causes nuclear fusion to occur in the core of the star. This energy flows through the star to its exterior, where it is radiated into space.
Some objects in space that give off radiation include stars, pulsars, black holes, supernovae, and active galactic nuclei. These objects emit a wide range of radiation, from visible light to X-rays and gamma-rays.
Objects such as stars, light bulbs, and burning candles give off light due to high temperature. When an object is heated to a high temperature, it emits electromagnetic radiation in the form of visible light.
Yes
they are magnetic
Because they give off absolutely no light and no radiation. The only radiation is X-Rays from the stars being sucked in.
All stars give out some ultraviolet light (including our Sun, which is why we get sunburn). If the star is young and hot, it gives off quite a lot, and if old and dim, only a little. All stars give off a wide spectrum of radiation, much of it invisible to our eyes. To calculate a star's total radiation, we use what is called a bolometric measurement. The atoms in gases can also give off ultraviolet if their electrons are sufficiently excited by cosmic radiation.
All cell phones give off varying degrees of radiation.
Hot things give off infrared radiation, which is a form of electromagnetic radiation that lies within the infrared region of the electromagnetic spectrum. This type of radiation is invisible to the human eye but can be felt as heat on the skin.
Pretty much the same kinds you get during the day. The big difference between day and night is the Sun, which is a star; other stars give off the same kind of radiation the Sun does (a bit less here, a bit more there, and much less intense because they're further away, but still: the same kind).
Radiation
Warm is a rather vague term. If it means neither cold enough to freeze your flesh nor hot enough to burn it, the answer is infrared.
The gravitational pressure and heat created by gravity causes nuclear fusion to occur in the core of the star. This energy flows through the star to its exterior, where it is radiated into space.
The stars give off light
Yes.