Article View: sci.astro
Article #3822Re: New planet
From: Julian Day
Date: Thu, 28 Jan 1993 11:43
Date: Thu, 28 Jan 1993 11:43
26 lines
1320 bytes
1320 bytes
In article <1993Jan25.092930.24684@ugle.unit.no> frodet@brosme.dhmolde.no (Frode Tennebo) writes: > >Astronomers at the 2.2-meter-telescope at Mauna Kea have recently >discovered a new planet in the solarsystem, which ut to this time has been >unknown. The planet, which has temporarily has been named 1992 QB1 >(where those astronomers get their names from beats me), is more than six >billion kilometers (app. 5.56 light-hours) away and orbits slowly around >the sun outside the orbit of Pluto. > >1992 QB1 is much smaller than Pluto, perhaps only 200 kilometers in >diameter. Pluto has a diameter of 2400 km. What an exciting discovery! But is this really "planet number ten", or, if it is only 200 km across, does it count as an asteroid rather than a planet? -- + Julian Day juliand@cogsci.ed.ac.uk + + Department of Cognitive Science, + + 1-6 Buccleuch Place, Tel. 031 650 1000 + + EDINBURGH EH8 9LW extn. 4418 +
Technical Details
Message-ID:
<12557@scott.ed.ac.uk>Path:
arc1-ca.pugleaf.net!sparky!uunet!pipex!unipalm!uknet!edcastle!edcogsci!juliandReferences:
<1993Jan25.092930.24684@ugle.unit.no>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!unipalm!uknet!edcastle!edcogsci!juliand From: juliand@cogsci.ed.ac.uk (Julian Day) Newsgroups: sci.astro Subject: Re: New planet Message-ID: <12557@scott.ed.ac.uk> Date: 28 Jan 93 11:43:56 GMT References: <1993Jan25.092930.24684@ugle.unit.no> Organization: Centre for Cognitive Science, Edinburgh, UK Lines: 26