This scan is only Near Earth Objects, not those in the further reaches of the Solar system - the WISE system is just not sensitive enough to pick up "planet sized" objects outside the orbit of Pluto.

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

This scan is only Near Earth Objects, not those in the further reaches of the Solar system - the WISE system is just not sensitive enough to pick up "planet sized" objects outside the orbit of Pluto.

Really?
Wanna check some facts 1st?
Aug 2011: http://www.nasa.gov/mission_pages/WISE/news/wise20120608.html
Apr 2014: http://www.nasa.gov/jpl/wise/spitzer-coldest-brown-dwarf-20140425
;)

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non-profit org. Play4Life in Zagreb, Croatia, EU

This scan is only Near Earth Objects, not those in the further reaches of the Solar system - the WISE system is just not sensitive enough to pick up "planet sized" objects outside the orbit of Pluto.

Really?
Wanna check some facts 1st?
Aug 2011: http://www.nasa.gov/mission_pages/WISE/news/wise20120608.html
Apr 2014: http://www.nasa.gov/jpl/wise/spitzer-coldest-brown-dwarf-20140425
;)

My, sensitive to room temperature. What about the temperature of an object in orbit at the distance of the supposed ninth planet?

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This scan is only Near Earth Objects, not those in the further reaches of the Solar system - the WISE system is just not sensitive enough to pick up "planet sized" objects outside the orbit of Pluto.

Really?
Wanna check some facts 1st?
Aug 2011: http://www.nasa.gov/mission_pages/WISE/news/wise20120608.html
Apr 2014: http://www.nasa.gov/jpl/wise/spitzer-coldest-brown-dwarf-20140425
;)

My, sensitive to room temperature. What about the temperature of an object in orbit at the distance of the supposed ninth planet?

Who knows?
But sometimes distance to the sun doesn't matter.
Neptune's average temperature is minus 353 F (minus 214 C). But despite being the most distant planet, it is not the coldest. That honor goes to the seventh planet, Uranus, which is closer to the sun. At such vast distances, however, the two ice giants take in very little heat from the star. Neptune's temperature is driven more by the motions within its interior than by the rays of the sun, motions that Uranus doesn't seem to share. -
See more at: http://www.space.com/18921-neptune-temperature.html#sthash.GuQCKxkK.dpuf

These brown dwarf "failed stars" have temperatures of about 270K-300K - they are "almost radiating", compared to Pluto's temperature of about 45K, and Planet 9 would be less than that - say 35-40K. (Of course this assumes that Planet 9 is an absorbing body like the outer ice planets, and not a captured brown dwarf which would be so much easier to see)

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

(Of course this assumes that Planet 9 is an absorbing body like the outer ice planets, and not a captured brown dwarf which would be so much easier to see)

I would assume there have been several "heat"/infrared maps of the sky, if only to find out what the image would look like; and I'd like to think a nearby 'brown dwarf' would take up enough pixels to be noticed... Otherwise we might have already seen stories along the lines of " Dammit, those 'Nemesis' guys were right!"?

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I still think that maybe the only way they will find this planet, if it exists, is by detecting it passing in front of a background star. But to do that they will need either a lot of computer crunching power or more refined calculations based on unaccounted for motion of other kuiper belt objects.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

I still think that maybe the only way they will find this planet, if it exists, is by detecting it passing in front of a background star. But to do that they will need either a lot of computer crunching power or more refined calculations based on unaccounted for motion of other kuiper belt objects.

I suspect the quickest way is to send a spacecraft[1] out in the general direction we suspect and allow the gravity of the object to perturb the spacecraft's flight path so we can refine the position.

[1]Just a radio transmitter, atomic clock, gyros for INS and a star tracker. Any other instruments would be for a different mission.

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There is an article on the latest "Nature" issue about the search for exoplanets by spectroscopy of their atmospheres. It says that the JWST could take part in this search. Maybe it could find also Planet 9 (why not X, which means ten?).
Tullio

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It is strange that it is easier to find and catalog planets circling a star 50 LY away than to find a possible planet in the outer reaches of our own solar system.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

This because you don't know where it is. Stars are in catalogues.
Tullio

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(Of course this assumes that Planet 9 is an absorbing body like the outer ice planets, and not a captured brown dwarf which would be so much easier to see)

I would assume there have been several "heat"/infrared maps of the sky, if only to find out what the image would look like; and I'd like to think a nearby 'brown dwarf' would take up enough pixels to be noticed... Otherwise we might have already seen stories along the lines of " Dammit, those 'Nemesis' guys were right!"?

you are right...NEO-WISE is looking in infrared & it has done 5.2 coverage of the whole Solar system...

do you think they missed it 5x times at NASA & other societies?!
not likely!
;)

I still think that maybe the only way they will find this planet, if it exists, is by detecting it passing in front of a background star. But to do that they will need either a lot of computer crunching power or more refined calculations based on unaccounted for motion of other kuiper belt objects.

asteroids@home is still running! ;)

There is an article on the latest "Nature" issue about the search for exoplanets by spectroscopy of their atmospheres. It says that the JWST could take part in this search. Maybe it could find also Planet 9 (why not X, which means ten?).
Tullio

since JWST is made to look a large portion of spectrum, included near-infrared & infrared...yes, it could detect such an object if it was looking at it...but, it's a large sky to cover!
& that's not a "priority mission" of JWST...might be some secondary...
;)

It is strange that it is easier to find and catalog planets circling a star 50 LY away than to find a possible planet in the outer reaches of our own solar system.

what's easier to see:
- from outside in a room with light
- from inside of the light room to a dark outside

some principle applies!
;)

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non-profit org. Play4Life in Zagreb, Croatia, EU

(Of course this assumes that Planet 9 is an absorbing body like the outer ice planets, and not a captured brown dwarf which would be so much easier to see)

I would assume there have been several "heat"/infrared maps of the sky, if only to find out what the image would look like; and I'd like to think a nearby 'brown dwarf' would take up enough pixels to be noticed... Otherwise we might have already seen stories along the lines of " Dammit, those 'Nemesis' guys were right!"?

you are right...NEO-WISE is looking in infrared & it has done 5.2 coverage of the whole Solar system...

do you think they missed it 5x times at NASA & other societies?!
not likely!
;)

Well, I went looking for their reports ...
http://www.nasa.gov/mission_pages/neowise/mission/index.html

To date, the project has resulted in the detection of ~158,000 asteroids at thermal infrared wavelengths, including ~700 NEOs, and has discovered ~34,000 new asteroids, 135 of which are NEOs. The project has detected more than 155 comets, including 21 discoveries.

But, https://www.youtube.com/watch?v=w3W57ouRsB4 the video shows 99.99% are inside the orbit of Jupiter. No Kuiper belt objects, or Oort cloud objects, both of which should be numerous if your detector is going to be able to spot the alleged ninth planet.

Also remember NEO-WISE ran out of cold many years ago. It is now blind to very cold objects.

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There is an article on the latest "Nature" issue about the search for exoplanets by spectroscopy of their atmospheres. It says that the JWST could take part in this search. Maybe it could find also Planet 9 (why not X, which means ten?).
Tullio

If there's any technology, sophisticated enough to find planet X, it will be the JWST.

I just don't understand why they haven't found the planet yet with the current means of technology. It has the size of Neptune for crying out loud!

My opinion is that the planet doesn't exist and I stick with it.

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rOZZ
Music
Pictures

It is strange that it is easier to find and catalog planets circling a star 50 LY away than to find a possible planet in the outer reaches of our own solar system.

Just what I was thinking.

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rOZZ
Music
Pictures

This because you don't know where it is. Stars are in catalogues.
Tullio

Good efforts have been made to catalogue the heliosphere as well.

http://www.helio-vo.eu/

https://www.helcats-fp7.eu/documents/WP1/Davies-WP2-HELCATS-May2014.pdf

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rOZZ
Music
Pictures

We have only "found" likely planets that are in really close to their parent star and are big enough to cause dimming as they transit their sun on the side that we can see.

These two guys have published a paper which is full of holes and should never have been allowed to happen. They THINK they MAY have found an OBJECT but have no idea where it is and what it is. But it seems that they are respected scientists so everybody is taking their word for it. If something is there it will be found maybe not quite in the same way that Pluto was in 1930, as technology has increased somewhat in 86 years!

Today, the majority of scientists agree that Planet X, as Lowell defined it, does not exist. Lowell had made a prediction of Planet X's orbit and position in 1915 that was fairly close to Pluto's actual orbit and its position at that time; Ernest W. Brown concluded soon after Pluto's discovery that this was a coincidence, a view still held today.

Wake me up when anything of note actually happens ZZZzzzzz

I'm so glad to hear that you don't believe in Einstein's theory of relativity or the theory of mathematics and computation. Perhaps we should inform another project or two you crunch for of your true feelings.

It's true, Lowell made a math mistake. Then again Lowell had to use a slipstick to do his math, he didn't have a core i-7 and a GPU to do the grunt work.

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Please try to keep the discussion civil and refrain from making personal comments about each other.

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Reality Internet Personality

(Of course this assumes that Planet 9 is an absorbing body like the outer ice planets, and not a captured brown dwarf which would be so much easier to see)

I would assume there have been several "heat"/infrared maps of the sky, if only to find out what the image would look like; and I'd like to think a nearby 'brown dwarf' would take up enough pixels to be noticed... Otherwise we might have already seen stories along the lines of " Dammit, those 'Nemesis' guys were right!"?

you are right...NEO-WISE is looking in infrared & it has done 5.2 coverage of the whole Solar system...

do you think they missed it 5x times at NASA & other societies?!
not likely!
;)

Well, I went looking for their reports ...
http://www.nasa.gov/mission_pages/neowise/mission/index.html

To date, the project has resulted in the detection of ~158,000 asteroids at thermal infrared wavelengths, including ~700 NEOs, and has discovered ~34,000 new asteroids, 135 of which are NEOs. The project has detected more than 155 comets, including 21 discoveries.

But, https://www.youtube.com/watch?v=w3W57ouRsB4 the video shows 99.99% are inside the orbit of Jupiter. No Kuiper belt objects, or Oort cloud objects, both of which should be numerous if your detector is going to be able to spot the alleged ninth planet.

Also remember NEO-WISE ran out of cold many years ago. It is now blind to very cold objects.

WISE as it was recommitted to NEO-WISE has been cooled by starring into a dark areas of the Space:
http://www.astro.ucla.edu/~wright/WISE/
http://www.latimes.com/science/sciencenow/la-sci-sn-wise-asteroid-20130822-story.html
http://neo.jpl.nasa.gov/programs/neowise.html

& don't forget it completed 2 surveys of the sky, before in 2010 going to look for NEO objects all around Earth...& then it went of coolant in 2011!
But it was brought back by engineers who made a way for NEO-WISE to work without coolant & worked from 2013 till now...until it gets too saturated in 2017 & fall out of the sky...
;)

& about that it can't find now any Jupiter-comet or Halley type comet, check here:
http://www.astro.ucla.edu/~wright/WISE/WISE-MPECs.html
http://neo.jpl.nasa.gov/stats/wise/
few Jupite-comets & Halley type comets have been found in 2014 & 2015!
;)

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non-profit org. Play4Life in Zagreb, Croatia, EU