The Destroyer is most likely a brown dwarf star that's too cold to be seen and in a perpetual dance with our Sun.
So many people want to label The Destroyer as a planet, or planet x. When NASA tells you that there are no large planets in our solar system that have gone undetected, they are not lying. Any large planet that would be big enough to affect Earth by passing us would have been seen by amature astronomers and would be all over the internet by now.
A brown dwarf star, locked in a binary orbit with our Sun, would be a whole different story. It can only be seen with high power infrared telescopes.
The Case For a Brown Dwarf Star
Brown dwarf stars are very hard to detect. In fact, the first one was not even verified until 1995. Here is a clip from Wikipedia.
1995: First brown dwarf verified. Teide 1, an M8 object in the Pleiades cluster, is picked out with a CCD in the Spanish Observatory of Roque de los Muchachos of the Instituto de Astrofísica de Canarias.
First methane brown dwarf verified. Gliese 229B is discovered orbiting red dwarf Gliese 229A (20 ly away) using an adaptive optics coronagraph to sharpen images from the 60 inch (1.5 m) reflecting telescope at Palomar Observatory on Southern California's Mt. Palomar; follow up infrared spectroscopy made with their 200 inch (5 m) Hale telescope shows an abundance of methane.
Some more proof of that would be to go to Google Images and search for a picture of a brown dwarf star. They just don't exist. You will find many artists renditions, but, only one single image of a brown dwarf, the one described above.
That tells us that yes, brown dwarf stars do exist, but, they are very hard to see or image. It also tells us that we did not even have the capability to verify a brown dwarf star until 1995.
The IRAS Telescope and the 1983 Washington Post Article
The Infrared Astronomical Satellite (IRAS) was the first-ever space-based observatory to perform a survey of the entire sky at infrared wavelengths. Launched on January 25, 1983, its mission lasted ten months. The telescope was a joint project of the United States, the Netherlands, and the United Kingdom.
Now, going back to the 1983 Washington Post article, we find these following statements.
The most fascinating explanation of this mystery body, which is so cold it casts no light and has never been seen by optical telescopes on Earth or in space, is that it is a giant gaseous planet as large as Jupiter and as close to Earth as 50 billion miles.
The mystery body was seen twice by the infrared satellite as it scanned the northern sky from last January to November, when the satellite ran out of the super cold helium that allowed its telescope to see the coldest bodies in the heavens.
Whatever it is, Houck said, the mystery body is so cold its temperature is no more than 40 degrees above "absolute" zero, which is 456 degrees Fahrenheit below zero. The telescope aboard IRAS is cooled so low and is so sensitive it can "see" objects in the heavens that are only 20 degrees above absolute zero.
Also, going back to the 1982 Newsweek Article "Does the Sun Have a Dark Companion" you find these statements.
When scientists noticed that Uranus wasn't following its predicted orbit for example, they didn't question their theories. Instead they blamed the anomalies on an as yet unseen planet and, sure enough, Neptune was discovered in 1846. Now astronomers are using the same strategy to explain quirks in the orbits of Uranus and Neptune. According to John Anderson of the Jet Propulsion Laboratory in Pasadena, Calif., this odd behavior suggests that the sun has an unseen companion, a dark star gravitationally bound to it but billions of miles away.
Starting to make sense now? The IRAS was launched to look at super cold objects in the infrared range. IRAS found a super cold object in the constellation of Orion that CAN ONLY BE VIEWED with telescopes like IRAS...Nothing Else.
The Great Year
Below is a wonderful documentary that is a must see for those interested. It explains the precession of the equinoxes and makes a pretty clear case that we live in a binary star system. Keep in mind that MOST STARS are in a binary orbit with one or more stars and if the Sun was not, it would be the exception.
On a side note about the documentary. Notice how it is narrated by James Earl Jones. James Earl Jones was also the voice of Darth Vader. Darth Vader was commander of the Death Star in Star Wars. From one death star to another.
The 1987 New Science and Invention Encyclopedia
Here is another piece of evidence. It shows in the image that the Pioneer Space Probe was sent out to the "Dead Star". Here is a scan of page 2488.
Most likely the Destroyer in not a planet, comet, asteroid, or any visual body. It is a brown dwarf star. The star is locked in an elliptical orbit with Earth's Sun.
Brown dwarf stars are so cold, only a few degrees above absolute zero, that they can not be seen with the naked eye or even conventional high powered telescopes. That would mean that it absorbs light and does not allow the light to reflect back. To the naked eye it would just appear as a big super black circle. The only way a backyard astronomer is going to see the Destroyer is if they notice a black circle that seems to be blocking the stars from behind it. Once it gets much closer to the Sun, the interaction between the two may cause it to become visible.
IRAS, a telescope specially designed to locate super cold objects, found an object as big as the planet Jupiter in the western edge of the constellation Orion in 1983. The object discovered can only been seen with a telescope like IRAS and nothing else.
So, the next time someone with a forked tongue and a foul attitude tries to deploy the usual cookie cutter reply "If there was a planet out there we would have seen it by now" usually followed by some sort of childish ad hominem personal attack on your grammar, spelling, or personal life, you pull out your information on Brown Dwarf Stars, and go to town.