Feeds

Meteor shower traced to 1490 comet break-up

Quadrantid mystery solved

Build a business case: developing custom apps

Astronomers have confirmed the origin of the Quadrantid meteors as a "deep-space explosion" of a comet in 1490 which was observed in China, Japan and Korea, New Scientist reports.

Fourteen astronomers last week tracked the shower's annual display during a nine-hour flight from California to the North Pole. Peter Jenniskens of NASA had previously followed up suspicions that it was caused by the debris of the 1490 event, in which observers spotted a comet "following a path similar to that of the Quadrantids", and which suddenly "flared up".

Jenniskens calculated that this relatively young stream would be narrow, and therefore "easily deflected by Jupiter's gravity". He predicted that accordingly it would "arrive a few hours earlier than if it were an older, more diffuse stream", peaking at 0200 GMT on Friday.

The astronomer's observations confirmed this. Apart from the Quadrantids, the 1490 exploding comet left a more substantial piece of debris - a near-Earth asteroid dubbed 2003 EH1. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Gigantic toothless 'DRAGONS' dominated Earth's early skies
Gummy pterosaurs outlived toothy competitors
Vulture 2 takes a battering in 100km/h test run
Still in one piece, but we're going to need MORE POWER
TRIANGULAR orbits will help Rosetta to get up close with Comet 67P
Probe will be just 10km from Space Duck in October
Boffins ID freakish spine-smothered prehistoric critter: The CLAW gave it away
Bizarre-looking creature actually related to velvet worms
CRR-CRRRK, beep, beep: Mars space truck backs out of slippery sand trap
Curiosity finds new drilling target after course correction
'Leccy racer whacks petrols in Oz race
ELMOFO rakes in two wins in sanctioned race
Astronomers scramble for obs on new comet
Amateur gets fifth confirmed discovery
Boffins build CYBORG-MOTHRA but not for evil: For search & rescue
This tiny bio-bot will chew through your clothes then save your life
What does a flashmob of 1,024 robots look like? Just like this
Sorry, Harvard, did you say kilobots or KILLER BOTS?
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.