the moon
illuminated
self-luminous.
It can be seen by the eye.
An object can be seen when light reflects off of its surface and reaches our eyes. This happens when there is sufficient light in the environment for our eyes to detect the object.
The object would appear blue to the observer because it reflects the blue frequency of light. This means that the object absorbs most of the other wavelengths of light and only reflects the blue color.
Most things we see, we see because they reflect light. Very few objects have light of their own. So you could say almost any object. If you are looking for a specific item in terms of your question, the object that you may mean is the Moon.
The moon is visible for the same reason every object is visible: it reflects light.
An object can be seen when light reflects off of it and enters the eye, triggering signals to the brain. The visibility of an object depends on factors like lighting conditions, the properties of the object (color, transparency), and the abilities of the observer (visual acuity, distance).
Objects appear to be different colors when seen in different colors of light because they absorb and reflect light differently based on their material composition. When white light hits an object, it absorbs some colors and reflects others, giving the object its perceived color. If the light source changes, the mix of colors hitting the object changes, altering how it appears.
The object will appear green because it absorbs all colors except for green, which it reflects back to our eyes.
They are too dim to be seen because of all the light the moon reflects.
Try it! For example, take a white sheet of paper out into the sunlight. If you think about it, you might even remember having seen - or not seen - white objects in white light in the past.