Sedna is so far away from the sun, can the sun cast a shadow on Sedna?

Sedna is a very distant object from the Sun, with a diameter of about 995 kilometers (dwarf planet scale), making it one of the most distant objects known from the Sun. In such a distant place, the sun's rays on this planet have become very faint, so will there be shadows on Sedna?

In fact, no matter how faint the light is, it can also produce shadows when it hits an object. This is because the light travels in a straight line, and when they hit the object, part of the light is blocked, so shadows appear. It's just that if the light source is too dim, the shadows won't be too noticeable.

Therefore, on Sedna, the sun also casts shadows when it shines on. So, how bright does the sun look on Sedna?

At her farthest from the Sun, at a distance of 936 AU (140 billion kilometers), the Sun's apparent magnitude is equal, which is much brighter than the stars and planets visible to the naked eye in the Earth's night sky, equivalent to two-fifths the brightness of the Full Moon. However, due to the distance, if someone looks at the sun at Sedna, the sun will appear as a bright spot instead of a disc.

When Sedna is closest to the Sun, at a distance of only 76 AU (11.4 billion kilometers), the Sun's apparent magnitude is equivalent to 58 times that of a Full Moon. Therefore, at perihelion, the planet will become very bright, and it will be no problem to read books and newspapers on it.

Currently, Sedna is about 88 AU (13.2 billion kilometers) from the Sun, which is about 45 times brighter than the Full Moon.

No matter how faint the light is, it can also produce shadows when it hits an object.

It should be possible, and everything that the sunlight hits should produce shadows.

There will be a shadow, because as long as the sun shines, it will leave a shadow.

Yes, because no matter how small an object is, as long as the sun hits it, there will be a shadow behind it.

There should be shadows, because the sun is still far away.

No, it's hard for scientists to have a definite answer now, I don't think so.

Although this distance is far away, the speed of light is relatively fast, and light is also refracted and emitted, so of course it can cast a shadow, but the size is different.

It is possible to cast shadows, just because the brightness of light may be weakened after long-distance propagation, and the light and shadow that appear are not obvious at close range, but this cannot change the nature of projection after the light travels in a straight line.

Where there is light, there must be shadows, but sometimes we don't see shadows, just like when we have a cloudy day, we can't see a shadow on a cloudy day, but we don't have it?

Yes. It's possible to cast a shadow, but you're not sure where to cast it, and if you look at the Earth on the back, the whole Earth will be dark and you can't see it, but it's very short and you can't feel it.