heliostat

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heliostat

(hee -lee-ŏ-stat) A coelostat mirror mounted on a synchronously controlled drive mechanism so that it may reflect sunlight in a fixed direction as the Sun moves across the sky. Together with additional optical elements it is a basic component of most solar telescopes.

heliostat

[′hē·lē·ə‚stat]
(engineering)
A clock-driven instrument mounting which automatically and continuously points in the direction of the sun; it is used with a pyrheliometer when continuous direct solar radiation measurements are required.
References in periodicals archive ?
Another big plus is that Frankel is a son of the mighty Galileo, who is producing outstanding racehorses capable of producing high-class stock - illustrated by leading first-season sire New Approach and Group 1 sire Teofilo, as well as Sixties Icon and Heliostatic, who have both sired stakes winners.
This afternoon's Group Two race has produced several Derby winners, and Heliostatic (3.
She is a daughter of Galileo (early days, but already damsire of La Collina, Leitir Mor and Saamidd) and Listed winner Affianced, making her a sister to Irish Derby hero Soldier Of Fortune and Meld Stakes winner Heliostatic.
Heliostatic followed up a good run in the Irish Derby by winning the 10f Meld Stakes here last month, but was clearly not at his best when fourth in last week's Royal Whip.
Monsieur Henri, Heliostatic, Cougar Bay and Land Before Time complete the line-up for the Group One event at the Irish venue.
Ladbrokes: 3 Darsi, 4 Dylan Thomas, 5 Best Name, Gentlewave, 7 Dragon Dancer, 8 Mountain, 10 Best Alibi, Heliostatic Puerto Rico, 12 Classic Punch 33 Cougar Bay 40 bar.
Heffernan always had the 11-2 shot well placed on the rails as his stablemate Altius set the pace with the favourite Heliostatic also close up.
The Irish handler took out Amadeus Mozart and James Joyce at yesterday's final declaration stage with the Jim Bolger-trained Heliostatic and Hughie Morrison's Supaseus also removed from the list.
The Ballydoyle handler's Amadeus Mozart and James Joyce, along with Jim Bolger's Heliostatic and the Hughie Morrison-trained Supaseus, were the only withdrawals.
Jim Bolger worked Heliostatic, who impressively put paid to two stablemates and is in to 33 from 50s for the Derby with William Hill.
Take note if there is a market move for O'Brien's Hitchcock in the Jumeirah Maiden, but he will have to be pretty sharp to beat Heliostatic (3.
All four sons of Galileo with runners have had Group winners; Teofilio, Heliostatic, as well as the exciting first-season sires Sixties Icon and New Approach, who had three winners at Royal Ascot.