On video, the massive collision can be seen at the bottom left corner of the planet. Ethan Chapel/Twitter

An amateur astrophotographer accidentally took a video of a massive collision on the southern equatorial belt of Jupiter.

Ethan Chapel said he was "lucky to be there at the time", when his monochrome camera captured a bright flash on the biggest planet in our solar system, an event Chapel only discovered after rewatching the video.

If the collision is confirmed, it would be the seventh between Jupiter and a celestial body visible from Earth since 1994.

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When Ethan Chapel recorded a video of the night sky on the night of August 7, he was unaware of what he just captured – an extraordinary moment happening over 40 light-minutes away.

Just as the amateur space photographer brought Jupiter into focus, another celestial body collided with our solar system's largest planet, producing a bright flash that Chapel only noticed after processing the film.

"Capturing videos are a normal part of my routine. I was lucky to be there at the right time. When I went back to the video and saw the flash, my instinct was to immediately post the footage," Chapel told Business Insider.

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Chapel says that the flash, which occurred at the southern equatorial belt of the Jupiter, looks like a bolide impact, an event that isn't necessarily considered rare in Space. Bolides, meteors that explode in the atmosphere, are also frequently seen in the Earth's atmosphere. Chapel was unable to confirm how big the celestial body that made the impact was.

He also told Business Insider that he hopes the collision can be confirmed by further recordings. Meanwhile, there was no visible sign of an impact scar.

If astronomers can confirm the impact, this would be the seventh collision between Jupiter and a celestial body visible from Earth since 1994.

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The most well-known impact on Jupiter to date occurred in 1994, when fragments of the Shoemaker Level 9 comet hit the far side of the giant gas planet. The energy generated by this collision was equivalent to about 6 trillion tons of TNT, the Associated Press reported at the time. This explosive force can be compared to about 50 million Hiroshima bombs. The collision was the first to be observed from Earth and the dark spots in Jupiter's atmosphere left behind by the immense impact were still visible months after the collision.