People here in my place saw some mysterious lights in the sky and thought they are UFOs. But my country’s astronomy agency said that those lights could be due to the planetary conjunction of Jupiter, Saturn, Mars and Neptune. I kind of know what it is after reading some info online, but I don’t know how to explain it to my father in a simple way so that he can understand.
In: Physics
A conjunction is what happens when, looking at the solar system from above of below, 2 or more planets appear to line up with the sun (it only appears this way, as the planet’s orbital planes don’t line up) with respect to Earth. [You can see a diagram here](https://40c279c9-a-62cb3a1a-s-sites.googlegroups.com/site/oakastroflash/Home/the-solar-system/the-planets/planetary-motions/opposition-and-conjunction/S1_04Figure-Anno.jpg?attachauth=ANoY7cpxV36BCg2J9yB9PClD5LKhGIe8j_W6Vm_Q1kxEpsOBERm7OopUTz-ZbEdGarOTGOhtLI_ONueshrsUVkz_OLYJJFfwbZOsRjMwaL59NH3yHZ2L9ob241vDBSUl2MsPOUwB0HpvLT34GdD_SFAt2-7ZlmAcEj1RIDWSr5B5yAqYxY7P7zmmQL_UgR0ldvbz9HX7bV17tNeQoJW7O210cE_0QidxGk2vnemuBqAkAge426pbvmNFaKKV9pHndjif1TJH8pRe7Q3fgUW1eJG9__9DVvwipD8OpDhS4Zb7_mVUomIrrkrWq53b73ZYnAZXPuJMevpuyiMK3wjMi6p1FuC_TAgXbA%3D%3D&attredirects=0). The result is that, when viewed from Earth, these planets appear very close together in the sky. It’s entirely possible that this could appear to certain people as UFOs, since the result is multiple bright lights close together in the sky (especially if it’s bright planets like Jupiter and Venus), although not Neptune, as it’s not visible with the naked eye.
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