Dictionary definition: period–luminosity–colour relation

Dictionary definition: period–colour relation
A Dictionary of Astronomy;      267 words ...period–colour relation A statistical relationship between the mean colour of a pulsating variable and its period. It reflects the fact that the period of pulsation depends on various factors, including ...

Dictionary definition: PLC relation
A Dictionary of Astronomy;      224 words ...PLC relation Abbr. for period–luminosity–colour relation .

Dictionary definition: period–luminosity relation
A Dictionary of Astronomy;      321 words ... ... relationship between the period of a pulsating variable and ... approximately linear: the longer the period, the greater the luminosity ... it is preferable to use a period–luminosity–colour relation . Mira stars have a non ...

Article: WH SMITH 'CAUTIOUS'.(Business)
Daily Record (Glasgow, Scotland);  November 13, 2009 ;     303 words ... ... performing sector was the high street, where samestore sales dipped four per cent. WH Smith said: "While we remain cautious and anticipate competitive trading in our markets over the key Christmas period, we have planned accordingly."

Article: Home loss toll set to plummet.(Business)
Daily Record (Glasgow, Scotland);  November 13, 2009 ;     390 words ... ... during the third quarter of the year, despite rising unemployment. About 11,700 homes were taken over by lenders during the period That was up from 11,400 in the previous three months, but down on the first quarter's total of 12,700. There was also ...

Article: Virginia executes D.C. sniper; Led 2002 shooting spree; Tacoma ...
The Seattle Times (Seattle, WA);  November 11, 2009 ;     700+ words ... ... Meyers at a gas station during the killing spree that left 10 people dead in the Washington, D.C., area over a three-week period. His teenage accomplice, Lee Boyd Malvo, was sentenced to life in prison. The Muhammad whom Nichols knew -- the one she ...

Article: Home prices fall nationwide, and in Seattle, in third ...
The Seattle Times (Seattle, WA);  November 11, 2009 ;     700+ words ... ... median sales prices of existing homes declined in 123 out of 153 metropolitan areas, including Seattle, compared with the same period a year ago. Prices rose in the other 30 cities. The national median price clocked in at $177,900, or 11 percent below ...