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How can the sun have both a brightness of -26.73 and 4.83 Explain what these numbers mean.?
The sun's brightness of -26.73 refers to its apparent magnitude, which measures how bright an object appears from Earth, with lower numbers indicating brighter objects. In contrast, a magnitude of 4.83 is associated with the sun's absolute magnitude, which represents its intrinsic brightness at a standard distance of 10 parsecs (about 32.6 light-years). The significant difference between these two values highlights the sun's immense brightness as viewed from Earth compared to its brightness at a greater distance.
If a line on a distanced graph becomes steeper what has happened to the speed of the object what is it becomes a flat horizontal line?
If a line on a distance-time graph becomes steeper, it indicates that the speed of the object is increasing, meaning it is moving faster over time. Conversely, if the line becomes a flat horizontal line, this signifies that the object has stopped moving, as there is no change in distance over time.
When object A exerts a force on object B object B?
object B moves
If object A is inscribed in object B then what can be said about each?
Object B must be circumscribed about object A.
If object A is circumscribed about object B then what can be said about each?
.Object B must be inscribed in object A.
What is an non-example of absolute brightness?
Anything that is not the measure of intrinsic brightness of a celestial object.
What is luminosity also known as?
Luminosity is also known as brightness or radiance, and refers to the total amount of energy emitted by a star or other celestial object per unit time. It is a measure of the intrinsic brightness of an object.
What is the Relative brightness of something?
Relative brightness refers to how bright an object appears compared to another object. It is often used in the context of visual perception to describe the perceived brightness of different objects in a scene. Brightness can be influenced by factors such as the intensity of light emitted or reflected by an object and the sensitivity of the human eye to different wavelengths of light.
According to the inverse square law of light how will the apparent brightness of an object change if its distance to us changes to one half as much as it was.?
If the brightness is 'B' right now, when the object is at a distance 'D' from your eye, then-- If the object moves closer, to only [ 1/2 D ] from you, the brightness increases to [ 4 B ].-- If the object moves farther away, to [ 2 D ] from you, the brightnesses decreases to [ 1/4 B ].
Why is the sun the brightness object in the sky?
it is beacause it is a ball of fire
What controls the brightness of the color of an object?
The brightness of the color of an object is determined by the amount of light that is reflected by the object's surface. The color itself is determined by the wavelengths of light that are reflected, with the object appearing brighter or darker depending on how much light is reflected back to our eyes.
What is difference between apparent brightness and true brightness?
Apparent brightness: how bright an object - such as a star - looks to us. True brightness: how bright such an object really is. Defined as: how bright it would look at a standard distance.
Why can't you see a light bulb when it is switched on?
The light emitted by the bulb overwhelms our eyes' ability to perceive its physical structure, making it difficult for us to see the bulb itself when it is switched on. Our eyes are more sensitive to the brightness of the light produced rather than the object emitting it.
What is the significance of the luminosity score in determining the brightness of a celestial object?
The luminosity score is important in determining the brightness of a celestial object because it measures the total amount of energy that the object emits per unit of time. A higher luminosity score indicates a brighter object, while a lower score indicates a dimmer object. This score helps astronomers understand the true brightness of celestial objects, regardless of their distance from Earth.
How is the brightness of light determined?
The brightness of light is determined by the intensity of the light source and the distance from the source to the object being illuminated. The closer the object is to the light source and the more intense the light, the brighter the light will appear.
What term is used to describe a star's brightness?
It is called Vmag. This is the visual magnitude of the object. Visual magnitude is a scale used by astronomers to measure the brightness of a star or other celestial object. Visual magnitude measures only the visible light from the object. The lower the V-MAG the brighter the star. You can go to http://seasky.org/pictures/sky7b14.html to learn more.
How would you measure the brightness of light being reflected by an object?
by using a photometer
