Two stars in a binary star system are most likely 4 light years apart. Binary star systems are common in the universe and consist of two stars that orbit around a common center of mass.
Hubble
Stars are the only objects in space that give off their own light.Other objects are visible only if a star shines on them.
The atmosphere distorts light passing through it, causing objects in space to appear blurry when viewed from Earth. It can also absorb and scatter light, making it difficult to see faint objects or details clearly. This is why observatories are often placed in high, dry locations or in space to minimize the effects of the atmosphere on viewing objects in space.
In outer space, molecules are spread far apart due to the vast distances between objects. The vacuum of space allows for molecules to exist at extremely low densities.
A telescope gathers light from objects in space, allowing astronomers to observe and study the objects in detail. This collected light is then magnified and analyzed to provide information on the object's characteristics such as size, composition, distance, and movement.
a lightbulb
from the sun
Hubble
The primary source of light for objects in space is usually stars, which emit light and other forms of electromagnetic radiation through nuclear fusion in their cores. Some objects in space can also reflect light from nearby stars or other sources, contributing to their overall brightness.
Light goes incredibly fast through space, bouncing off objects.
Objects in space that can only be viewed from earth becouse of reflected light energy are said to be
Stars
so you can group the objects into certain categories.
objects in space that can only be viewed from earth because of reflected light energy are said to be luminous.
Stars, galaxies, nebulae, and other luminous celestial objects emit light in space. These objects emit different wavelengths and intensities of light based on their composition and physical characteristics.
Light
As space objects move farther apart, the gravitational force between them weakens. Gravity follows an inverse square law, meaning it decreases with the square of the distance between the objects. This results in weaker gravitational attraction as the objects move away from each other.