It takes a photon 100,000 years to reach your eyes. Photons are created in stars’ cores.

1. It takes a photon 100,000 years to reach your eyes.

• Photons are created in stars’ cores. The temperature at the Sun’s core is about 15 million. This is enough to strip electrons from hydrogen atoms, leaving protons and electrons scattered in a dense soup of charged particles.
• When a photon hits a charged particle, it changes its direction. More accurately, it gets absorbed by the charged particle, who wants to get rid of this extra energy and re-emits a photon in a random direction.
• This process is repeated hundreds of septillions of times. It’s called a random walk.
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• With each collision, a photon loses a bit of energy. By the time it reaches the surface, it has lost most of its energy and emerges in the visible or infrared spectrum.

• EDIT: I never thought I’d have to explain such a clear thing.
• It takes light 8 minutes to reach Earth from the photosphere. That’s high-school math. You’re not a high-schooler. (I am a high schooler, actually)

1. Light is mainly emitted from the Sun’s core. We’ve to include the time required to get from the core to the surface. That’s 100,000 years on average.

• But, the problem is, can we say that the photon absorbed by the charged particle is the same photon re-emitted?

1. AIT might be more accurate to say that the same bit of excess energy is being passed from object to object via photons.
2. It is a different kind of photons (primarily gamma rays) produced in the core than the sunlight photons we mainly receive on Earth (visible light, IR, and UV). So, it is incorrect to say that sunlight takes 100,000 years to reach Earth.

• That depends on individual perspectives. There’s nothing called ‘the same photon’ in physics.
• The only individuals whose perspectives matter in this context are Bose and Einstein.
• As you said yourself, the photon is absorbed by a particle, which later emits (another) photon; it is not re-emitting the same photon. That is a deceptive statement on your part to support your argument that it takes more than approximately 8 minutes for a photon leaving the sun to arrive on Earth…
• For all the random readers out there, this is semantics. When someone says “sunlight,” you might think of it as the photons emitted by the sun, but that would be dumb, since in everyday conversation, they mean sunlight from the sun’s surface. It’s a bit like if someone asked you how long it took you to graduate…
• The photons from the sun that we see with our eyes are emitted from the photosphere, which is considered the “surface” of the sun. Granulations, sunspots, and maculae are all characteristics of the photosphere that we typically observe in visible light.
• Yes, that’s right. The photosphere is considered the surface of the Sun. And all the features, like sunspots, form on the photosphere. But how does it relate to the context of the post? We’re discussing how long it takes photons to travel from the Sun to Earth. Photons are emitted in the Sun’s core, so you’ve to consider the time it…
• You are misunderstanding what a “photon” is. You are thinking of it as some packet that remains a packet and travels as a packet. Or you think it’s some immutable point particle?? I hope not because no one has ever claimed such a thing. There is no theory accepted by the physics community in existence that posits or models a photon as such a thing. A photon is a number state. Once emitted, its energy propagates according to Maxwell. Only Maxwell. All those trillions and trillions of photons you think are making their individual ways out from the center are doing nothing of the sort. Instead, they should be considered contributions to the broader E&M field, which comprises energy/number states that obey the Bose-Einstein statistical framework. The field in question is not monochromatic.
• Every wavelength is present. And every direction. Furthermore, as this E&M propagates outward from the center, it enters regions of higher gravitational potential. The farther it propagates from the center, the higher its gravitational potential. Therefore, as this fictional photon of yours travels by itself outwardly, its wavelength changes. It becomes red-shifted. Or would be if it really was able to remain intact. Again, it does not. That’s not what photons are and not what photons do. So tell me – do you really think it’s the same photon if its wavelength is completely different once it (somehow) makes its way to the surface? The idea that once a photon is emitted or scattered, it remains the same but goes off in a different direction has no basis in theory. None. There is absolutely no physics that supports your idea here.