Language Selection

English French German Italian Portuguese Spanish

'Tenth planet' may be bigger than expected

Filed under
Sci/Tech

An observational error may have understated the size of the tenth planet - if "planet" is in fact what astronomers finally decide to call it.

The upper limit on the size of the object, temporarily called 2003 UB313, was earlier set at 3000 kilometres following the Spitzer Space Telescope's failure to spot any infrared source at its location. But as its discoverer Mike Brown notes on his website, the telescope was actually pointed at the wrong place, so the object could actually be bigger than that.

The Spitzer observations were made before the object was entered in public data bases, so Brown's group at Caltech, US, had to specify the positions of it and two other giant Kuiper Belt objects.

Spitzer was aimed correctly at two of them - but somewhere along the line an error crept in with the location of 2003 UB313. "The mistake was caught by one of the many extremely careful members of the Spitzer Science Center," Brown writes. Spitzer will check the right spot to see 2003 UB313 later in August.

Full Story.

More in Tux Machines

today's howtos

Leftovers: Gaming

Fedora 21 Alpha to release on Tuesday

Today the Fedora Engineering Steering Commitee held a “Go/No Go” meeting regarding the Fedora 21 alpha, and it was agreed that the current release candidates for Fedora 21 met the release criteria. With this decision, this means that Fedora 21 will be released on Tuesday September 23, 2014. Read more

Teaching open source changed my life

Teaching open source has been a breath of fresh air for myself and for many of our students because with the open source way, there are no official tests. There is no official certification for the majority of open source projects. And, there are no prescribed textbooks. In open source, no employer worth working for will ask for official proof of your abilities. A good employer will look at what you’ve done and ask you to showcase what you can do. Yes, it still helps to have a Computer Science degree, but the lack of one is often no drawback. Read more