The Reflecting Heliometer of Rio de Janeiro after 6 Years of Activity

The Reflecting Heliometer of Rio de Janeiro after 6 Years of Activity

Started its regular, daily operational phase in 2011 and installed in 2009 by the occasion of the Symp264 in the XXVII IAU GA at Rio de Janeiro, the results so far obtained show that the Heliometer of the Observatorio Nacional fulfilled its planed performance of single measurement to the level of fe...

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Veröffentlicht in:arXiv.org 2015-12
Hauptverfasser: Boscardin, Sergio C, Sigismondi, Costantino, Penna, Jucira L, D'Avila, Victor, Reis-Neto, Eugenio, Andrei, Alexandre H
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Heliometers
Physics - Instrumentation and Methods for Astrophysics
Physics - Solar and Stellar Astrophysics
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Sigismondi, Costantino
Penna, Jucira L
D'Avila, Victor
Reis-Neto, Eugenio
Andrei, Alexandre H
description Started its regular, daily operational phase in 2011 and installed in 2009 by the occasion of the Symp264 in the XXVII IAU GA at Rio de Janeiro, the results so far obtained show that the Heliometer of the Observatorio Nacional fulfilled its planed performance of single measurement to the level of few tens of milli-arcsecond, freely pivoting around the heliolatitudes without systematic deviations or error enhancement. We present and discuss the astrometric additions required on ground based astronomic programs. We also discuss instrumental and observations terms, namely the constancy of the basic heliometric angle, against which the measurements are made, and the independence to meteorological and pointing conditions.
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subjects Heliometers
Physics - Instrumentation and Methods for Astrophysics
Physics - Solar and Stellar Astrophysics
title The Reflecting Heliometer of Rio de Janeiro after 6 Years of Activity
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