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Rhys killing 'appalled country'

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Secondary school closures agreed

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HET will continue 'crucial work'

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Menezes family's inquest protest

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No decision over Shields pardon

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US Congresswoman hangs up on Obama

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Nasa delays its next Mars mission

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Pompey crash out after defeat

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Honda poised to quit Formula One

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Send your video, pictures and story ideas

Have you got a good story? BBC News wants to hear from you.

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Villa through despite Uefa Cup loss

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Child protection review announced

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Controversial Lapland theme park closes down

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 World Catalog > Science > Astronomy > Stars > Variable Stars

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World Catalog > Science > Astronomy > Stars > Variable Stars

Variable Stars:

American Association of Variable Star Observers

The largest organization for variable stars: provides professional and amateur collaboration, research, and analysis of variable star observations.

http://www.aavso.org/

Astronomical Society of South Australia

ASSA's variable star group. News, FAQ, charts, and software.

http://www.assa.org.au/sig/variables/

Astronomy On-Line

Collaborative Project aimed at getting new people involved in variable star observing.

http://www.eso.org/outreach/spec-prog/aol/market/collaboration/varstar/

Graand

Free Classified Ads Portal

www.graand.com

Brigham Young University Variable Star Database

Currently contains 311 stars which have been classified as Delta Scutis or Gamma Doradus in some published source.

http://astronomy.byu.edu/research.php?section=vardatinstructions

General Catalog of Variable Stars Research Group

Research group working on the GCVS, Sternberg Astronomical Institute, Moscow, Russia. Includes catalogs and publications.

http://www.sai.msu.su/groups/cluster/gcvs/

Information Bulletin on Variable Stars

The IBVS is a bulletin of Commissions 27 and 42 of the International Astronomical Union, published by Konkoly Observatory, Budapest, Hungary.

http://www.konkoly.hu/IBVS/IBVS.html

The Minima of Algol

An article by Alan MacRobert from Sky and Telescope Magazine about the star Algol (Beta Persei) was the first eclipsing variable star ever discovered.

http://skytonight.com/observing/objects/variablestars/3304096.html?page=1&c=y

A Ritzian Interpretation of Variable Stars

A study on the nature of the speed of light in space using light curves and spectroscopic observations of variable stars as evidence.

http://www.datasync.com/~rsf1/binaries.htm

Skyandtelescope.com - Variable Stars

Observing variable stars.

http://skytonight.com/observing/objects/variablestars/

The Top Twelve Naked-Eye Variable Stars

An article by John Isles from Sky and Telescope Magazine.

http://skytonight.com/observing/objects/variablestars/3304276.html?page=1&c=y

Canada halts parliament amid row

Canadian PM Stephen Harper secures a suspension of parliament, saving him from defeat in a confidence vote.

news.bbc.co.uk

Secondary school closures agreed

A council agrees to close three secondary schools and create a new Welsh medium school as part of its reorganisation plans.

news.bbc.co.uk

Nice smell...

But why else would anyone buy a new car these days?

news.bbc.co.uk

Send your video, pictures and story ideas

Have you got a good story? BBC News wants to hear from you.

news.bbc.co.uk

Rhys killing 'appalled country'

The murder of schoolboy Rhys Jones was a terrible killing which appalled the whole country, a judge tells a jury in his summing up.

news.bbc.co.uk

Nasa delays its next Mars mission

The US space agency (Nasa) has delayed the launch of its Mars Science Laboratory rover mission from 2009 to 2011.

news.bbc.co.uk

Kenya PM calls for Mugabe removal

Power-sharing in Zimbabwe is dead and Africa must unite to oust President Mugabe, says Kenya's prime minister.

news.bbc.co.uk

Pakistan dilemma

Relations with India strained in wake of the Mumbai attacks

news.bbc.co.uk

No decision over Shields pardon

The High Court reserves judgement in the case of jailed Liverpool fan Michael Shields, who has started a pardon bid.

news.bbc.co.uk

Mother guilty over Shannon kidnap

Shannon Matthews's mother and co-accused Michael Donovan are convicted of kidnapping the nine-year-old in a plot to claim a £50,000 reward.

news.bbc.co.uk

Bank cuts UK rates to 57-year low

The Bank of England has cut interest rates by one percentage point from 3% to 2%, their lowest level since 1951.

news.bbc.co.uk

US Congresswoman hangs up on Obama

A US Congresswoman hangs up the phone on President-elect Barack Obama, thinking the call is a hoax.

news.bbc.co.uk

Honda poised to quit Formula One

Japanese car giant Honda will withdraw from Formula One on Friday and place its team up for sale, BBC Sport understands.

news.bbc.co.uk

Carmakers 'affect entire US economy'

General Motors boss Rick Wagoner and his Ford counterpart Alan Mulally admit making mistakes in the way they ran the firms.

news.bbc.co.uk

Controversial Lapland theme park closes down

The firm running a Lapland-style theme park in the New Forest criticised by visitors as "hell" and a "scam" close it down.

news.bbc.co.uk

Pompey crash out after defeat

Portsmouth exit the Uefa Cup after they lose to Bundesliga side Wolfsburg.

news.bbc.co.uk

Villa through despite Uefa Cup loss

Aston Villa fall to a shock defeat to MSK Zilina but still reach the Uefa Cup's last 32, thanks to Hamburg's victory over Slavia Prague.

news.bbc.co.uk

Your pictures

Readers' images of snowfalls across the UK

news.bbc.co.uk

Menezes family's inquest protest

The family of Jean Charles de Menezes have walked out of the inquest into his death at the Oval Cricket Ground in London in protest.

news.bbc.co.uk

Child protection review announced

The Scottish Government announces a wide-ranging review of guidance on child protection practices.

news.bbc.co.uk

DNA dilemma

Will European ruling result in more unsolved crimes?

news.bbc.co.uk

Cash glow

How much does a street light cost for one night?

news.bbc.co.uk

HET will continue 'crucial work'

The special police team set up to investigate murders during the troubles is to make 75 staff redundant.

news.bbc.co.uk

Interest rates

Which lenders are passing on the rate cuts to customers?

news.bbc.co.uk

Smith accused of raid 'ignorance'

Jacqui Smith is attacked for not knowing a Tory MP was to be arrested, as her predecessor says she should have been told.

news.bbc.co.uk