Noun. 1. invariant-a feature (quantity or property or function) that remains unchanged when a particular transformation is applied to it. characteristic, feature-a prominent attribute or aspect of something; the map showed roads and other features; generosity is one of his best characteristics.
The part of the sun that is going to emit the most visible light is going to be the Photosphere.he photosphere is the layer of the sun that emits visible light.  The light is emitted by hydrogen atoms and is bright red. Edit. Share to: Answered. In Astronomy.
the sun emits electromagnetic radition in a large range of the spectrum including x-rays, UV light and visible light. it also emits what is called solar wind which is large am â¦ ounds of radiation and particles such as helium and hydrogen ions....I'm no expert, but hopefully its somewhere for you to start googling.he sun emits electromagnetic radition in a large range of the spectrum including x-rays, UV light and visible light. it also emits what is called solar wind which is large am â¦ ounds of radiation and particles such as helium and hydrogen ions.... I'm no expert, but hopefully its somewhere for you to start googling.