effective temperature
effective temperature (symbol
Teff or
Te) The temperature of a
black body that radiates the same total energy per unit area as a given object, such as a star. It is the most useful measure of a star's surface temperature. The effective temperature of the Sun, for example, is 5800 K. However, in other circumstances it may be misleading, such as for a planetary nebula which may have a
kinetic temperature (obtained from the mean energies of the particles) of 10 000 K, but an effective temperature of only 50 K because of the low density of particles. See also
Colour Temperature.
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 "Irish Independent (Dublin, Republic of Ireland)")
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Perce Rock toast of weekend feast.
Magazine article from: Irish Independent (Dublin, Republic of Ireland); 3/22/2008; 626 words
; Perce Rock toast of weekend feast The busiest weekend...main events as Tony McCoy teams up with Perce Rock in the Betfair Novice Chase. Back...jumping form. Barring another tumble, Perce Rock looks the part off a rating of 142...
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 "The Racing Post (London, England)")
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Horse Racing: Perce Rock could make waves in Arkle betting; TRADING POST.(Sports)
Newspaper article from: The Racing Post (London, England); 12/24/2007; 700+ words
; ...St Stephen's Day) Sky's The Limit, Scotsirish, Perce Rock Guinness Greenmount Park Novice Chase (2m3f, Limerick...attracted only four runners, but the highly regarded Perce Rock, who looked very useful first time up on bad ground...
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 "The Mirror (London, England)")
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REAL MCCOY Perce Rock.(Sport)
Newspaper article from: The Mirror (London, England); 4/15/2009; 238 words
; REAL MCCOY Perce Rock won The Tattersalls Ireland Dan Moore Memorial Handicap Steeplechase with Tony McCoy on board
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 "Sunday Mirror (London, England)")
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Horse Racing: ROCK HAS HIS EYE ON THE PERCE; RACING: AMAZING GRACE BECKONS IN SUPER SUNDAY SHOWDOWNS.(Sport)
Newspaper article from: Sunday Mirror (London, England); 12/3/2006; 614 words
; Byline: By RYAN McELLIGOTT PERCE ROCK makes his eagerly-awaited debut over timber...Cheltenham in March. Unraced since then, Perce Rock appeals as the type that could go a long...CAPTION(S): CONFIDENT: Tommy Stack's Perce Rock
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This afternoon's final session of the Easter Festival at Fairyhouse affords Cheltenham casualties Perce Rock and Ebadiyan fine chances to atone for failing to complete the course in the Cotswolds.
Newspaper article from: Irish Independent (Dublin, Republic of Ireland); 4/14/2009; 700+ words
; Perce Rock and Ebadiyan can atone for Cheltenham mishaps...Fairyhouse affords Cheltenham casualties Perce Rock and Ebadiyan fine chances to atone...Williams Festival Plate by a stricken rival, Perce Rock bids for a measure of compensation...
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Cheltenham casualty Perce Rock put a smile back on Tony McCoy's face as the Easter Festival came to a close at Fairyhouse yesterday when he landed an ultra-competitive Dan Moore Memorial Handicap Chase.
Newspaper article from: Irish Independent (Dublin, Republic of Ireland); 4/15/2009; 700+ words
; McCoy all smiles as Rock shakes off rivals Cheltenham casualty Perce Rock put a smile back on Tony...Stack's Tipperary stable, Perce Rock recovered from a couple...for a change, McCoy then kept Perce Rock at full stretch to hold...
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Horse Racing: Perce Rock's Supreme Novices' odds cut after winning debut; GOWRAN PARK.(Sports)
Newspaper article from: The Racing Post (London, England); 12/15/2006; 700+ words
; Byline: by Brian Fleming PERCE ROCK was expected to deliver first time...weight Shining Lights. Star performance Perce Rock, who looks destined for a profitable...Stack and jockey Conor O'Dwyer with Perce Rock, the JP McManus-owned bumper...
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Perce Rock could make waves in Arkle betting; TRADING POST.(Sports)
Newspaper article from: The Racing Post (London, England); 12/24/2007; 700+ words
; ...Leopardstown, Boxing Day) Sky's The Limit, Scotsirish, Perce Rock Guinness Greenmount Park Novice Chase (2m3f, Limerick...attracted only four runners, but the highly regarded Perce Rock, who looked very useful first time up on bad ground...
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Horse Racing: Perce Rock and Clopf could clash at Fairyhouse.(Sports)
Newspaper article from: The Racing Post (London, England); 3/18/2008; 609 words
; Byline: By Brian Fleming PERCE ROCK, who returned to winning ways over fences at Leopardstown this...Fozzy Stack, son and assistant to Tommy Stack, trainer of Perce Rock, said yesterday: "At the moment he's an intended runner...
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McCoy and McManus gain consolation with Perce Rock; FAIRYHOUSE.(Sports)
Newspaper article from: The Racing Post (London, England); 4/15/2009; 700+ words
; ...when landing the Dan Moore Memorial Handicap Chase on Perce Rock for Tommy Stack and JP McManus. The seven-year-old...were no hitches this time. A fine leap three out set up Perce Rock for victory, and he battled on to get the better of...
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Idaho
Dictionary entry from: Dictionary of American History
...with their fish and game, and the Nez Perce and Coeur d'Alene tribes in the north...which were illegally established on the Nez Perce Indian reservation to service the diggings...placer methods were succeeded by hard-rock mining financed by outside investors...
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Native American Religion
Encyclopedia entry from: Macmillan Encyclopedia of Death and Dying
...tribes often deposited their dead in caves or fissures in the rocks. Nomadic tribes in the Great Plains region either buried their...person in or near the gravesite. Other groups, such as the Nez Perce of the Northwest, sacrificed wives, slaves, and a favorite...
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Bonaventure Island
Book article from: The Columbia Encyclopedia, Sixth Edition
Bonaventure Island 2 1/2 mi (4 km) long and 3/4 mi (1.2 km) wide, off E Que., Canada, in the Gulf of St. Lawrence, c.3 mi (5 km) N of Perce Rock. It has the largest bird sanctuary on the N Atlantic coast.
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