Explain to me what is a Nibiru, Planet X, Nemesis, Eris, Wormwood, Elenin, Tyche.....

Seems to me, they are coming up with new names everyday. Are you guys sure all these even exist? Yet amateurs still can't find it anywhere? Oh, of course, I forgot, all the above are supposed to be invisible right? Right, how convenient.

Nibiru, or neberu, is a Akkadian word meaning "crossing" or "point of crossing".
It is used often in Sumerian and Babylonian astronomical texts. The exact meaning in that context is unclear.
According to the late Zecharia Sitchin Nibiru is a celestial body (he changed his mind on exactly what type of body) that wanders into the inner solar system every 3,600 years to wreak havoc.
Sitchin set forth a return date of 2085 which wasn't soon enough for many doom lovers and they switched to 2012, completely disregarding Sitchin's timeline.
There is no scientific evidence this object exists, or even could exist.

Planet X is any yet undiscovered planet beyond the orbit of Neptune.

Nemesis is the spirit of divine retribution against those who succumb to hubris in Greek mythology.
Nemesis is a hypothetical dwarf star or brown dwarf in a 26 million year orbit around the Sun beyond the Oort cloud.
Proposed by two separate teams in 1984.

Eris is the Greek goddess of strife and discord.
136199 Eris is a dwarf planet, the 9th most massive object orbiting the Sun directly.
Discovered 5 January 2005 by Mike Brown and his team.

Wormwood (apsinthion) is a star, or angel, that appears in a vision described in the Book of Revelation, written by a John of Patmos, presumably somewhen between 68 and 95 CE.
Some people take it literal.

Comet C/2010 X1 (Elenin) is a periodical comet discovered 10 December 2010 by Russian amateur astronomer Leonid Yelenin, using a robotic observatory in New Mexico.

Tyche is the Greek patron goddess of a city's fortune, prosperity and destiny. Equivalent to the Roman goddess Fortuna.
258 Tyche is a large main belt asteroid discovered 4 May 4 1886 by German astronomer Robert Luther.
Tyche is a hypothetical gas giant planet orbiting in the Oort cloud circa every 1.8 million years.
Proposed by Matese and Whitmire in 1999.

Seems to me, they are coming up with new names everyday. Are you guys sure all these even exist? Yet amateurs still can't find it anywhere? Oh, of course, I forgot, all the above are supposed to be invisible right? Right, how convenient.

Nibiru, or neberu, is a Akkadian word meaning "crossing" or "point of crossing".
It is used often in Sumerian and Babylonian astronomical texts. The exact meaning in that context is unclear.
According to the late Zecharia Sitchin Nibiru is a celestial body (he changed his mind on exactly what type of body) that wanders into the inner solar system every 3,600 years to wreak havoc.
Sitchin set forth a return date of 2085 which wasn't soon enough for many doom lovers and they switched to 2012, completely disregarding Sitchin's timeline.
There is no scientific evidence this object exists, or even could exist.

Planet X is any yet undiscovered planet beyond the orbit of Neptune.

Nemesis is the spirit of divine retribution against those who succumb to hubris in Greek mythology.
Nemesis is a hypothetical dwarf star or brown dwarf in a 26 million year orbit around the Sun beyond the Oort cloud.
Proposed by two separate teams in 1984.

Eris is the Greek goddess of strife and discord.
136199 Eris is a dwarf planet, the 9th most massive object orbiting the Sun directly.
Discovered 5 January 2005 by Mike Brown and his team.

Wormwood (apsinthion) is a star, or angel, that appears in a vision described in the Book of Revelation, written by a John of Patmos, presumably somewhen between 68 and 95 CE.
Some people take it literal.

Comet C/2010 X1 (Elenin) is a periodical comet discovered 10 December 2010 by Russian amateur astronomer Leonid Yelenin, using a robotic observatory in New Mexico.

Tyche is the Greek patron goddess of a city's fortune, prosperity and destiny. Equivalent to the Roman goddess Fortuna.
258 Tyche is a large main belt asteroid discovered 4 May 1886 by German astronomer Robert Luther.
Tyche is a hypothetical gas giant planet orbiting in the Oort cloud circa every 1.8 million years.
Proposed by Matese and Whitmire in 1999.

Seems to me, they are coming up with new names everyday. Are you guys sure all these even exist? Yet amateurs still can't find it anywhere? Oh, of course, I forgot, all the above are supposed to be invisible right? Right, how convenient.

well little or none of the above is true. except perhaps comet elenin which is just a comet.

if Nemesis and others had orbits around the sun of millions of years, they are not orbiting our sun, sorry.

Planet X is our brown dwarf. read my post above. Nibiru does orbit our solar system AND Sirius.