Results 21 to 30 of about 92,651 (143)
The effect of aqueous alteration and metamorphism in the survival of presolar silicate grains in chondrites [PDF]
, 2008 Relatively small amounts (typically between 2-200 parts per million) of presolar grains have been preserved in the matrices of chondritic meteorites.
Bischoff +31 more
core +2 more sources
An advanced scattered moonlight model for Cerro Paranal [PDF]
, 2013 The largest natural source of light at night is the Moon, and it is the major contributor to the astronomical sky background. Being able to accurately predict the sky background, including scattered moonlight is important for scheduling astronomical ...
Jones, Amy +4 more
core +1 more source
Evaluación de una propuesta para la enseñanza y el aprendizaje de la astronomía en secundaria [PDF]
, 2015 Este trabajo de investigación presenta una propuesta para la enseñanza de la astronomía enmarcada en el socioconstructivismo que se ha implementado en alumnos de secundaria de 17 años, realizando un diseño de tipo pre-test y post-test. El análisis de los
Palomar Fons, Rafael +1 more
core +4 more sources
, 2009 This paper describes how 67 teachers from 23 cities, could awaken, in students, the scientific interest, using a natural astronomical phenomenon: a total lunar eclipse.
Rodolfo Langhi
semanticscholar +1 more source
Qué contenidos y qué habilidades cognitivo-lingüísticas emplea el profesorado de primaria y secundaria en la enseñanza de la astronomía [PDF]
, 2015 Se analizan 373 actividades de enseñanza y 103 cuestiones de evaluación dirigidas al estudio de la astronomía, aportadas por 14 profesores (7 de primaria y 7 de secundaria).
García Barros, Susana +2 more
core +3 more sources
Concepção de Alunos sobre as Fases da Lua e os Eclipses Lunar e Solar: Relato de Experiência
, 2016 Uma das ciencias mais antigas, a Astronomia, sempre desperta um especial interesse dos alunos. Ao discutir sobre os astros e seus movimentos, realizando indagacoes orais aos alunos, e possivel perceber que eles trazem consigo concepcoes sobre diversos ...
Juliana Alves da Silva Ubinski +1 more
semanticscholar +1 more source
Aldebaran's angular diameter: How well do we know it? [PDF]
, 2005 The bright, well-known K5 giant Aldebaran, α Tau, is probably the star with the largest number of direct angular diameter determinations, achieved over a long time by several authors using various techniques.
A.Richichi +3 more
semanticscholar +1 more source
Stellar Characterization and Radius Inflation of Hyades M-dwarf Stars from the APOGEE Survey
The Astrophysical Journal, 2023 We present a spectroscopic analysis of a sample of 48 M-dwarf stars (0.2 M _⊙ < M < 0.6 M _⊙ ) from the Hyades open cluster using high-resolution H -band spectra from the Sloan Digital Sky Survey/Apache Point Observatory Galactic Evolution Experiment ...
Fábio Wanderley +25 more
doaj +1 more source
Longomontanus’ De maculis in Luna and the determination of geographic longitudes
GalilæanaIn Astronomia Danica, Longomontanus provides a method for calculating the longitude for a given location on Earth. To do so, he relies on precise calculations of the lunar position so that he can know when he is observing it without any parallax in ...
Gonzalo Luis Recio
doaj +1 more source
Cadernos de AstronomiaA astronomia desperta o interesse e cativa a imaginação humana devido à sua conexão com o que há de mais profundo nas indagações existenciais que habitam a mente.
M. Novais, R. Tolentino
semanticscholar +1 more source