Results 81 to 90 of about 56,626 (163)
Jogo de cartas como metodologia de ensino de Astronomia para a educação básica
A Astronomia é uma área de conhecimento que desperta o interesse de alunos e professores. Seu estudo traz hipóteses sobre a formação do Sistema Solar, constituição de planetas, estrelas, além da origem e evolução da vida na Terra.
Mairon Melo Machado +2 more
doaj
On the stellar content of the open clusters Melotte 105, Hogg 15, pismis 21 and Ruprecht 140 [PDF]
CCD observations in the B, V and I passbands have been used to generate colour-magnitude diagrams reaching down to V = 19 mag for two slightly characterized (Melotte 105 and Hogg 15) and two almost unstudied (Pismis 21 and Ruprecht 140) open clusters ...
Claria Olmedo, Juan Jose +1 more
core +1 more source
A new method to find the potential center of N-body systems [PDF]
We present a new and fast method to nd the potential center of an N-body distribution. The method uses an iterative algorithm which exploits the fact that the gradient of the potential is null at its center: it uses a smoothing radius to avoid getting
Aguilar, L. A. +2 more
core +1 more source
XMM-Newton observations of the supernova remnant RX J1713.7-3946 and its central source [PDF]
We present new results from the observations of the supernova remnant (SNR) RX J1713.7–3946 (also G347.3–0.5) performed in five distinct pointings with the EPIC instrument on board the satellite XMM-Newton.
Ballet, J. +5 more
core +1 more source
SDSS-IV MANGA: Spatially Resolved Star Formation Main Sequence and LI(N)ER Sequence [PDF]
We present our study on the spatially resolved H_alpha and M_star relation for 536 star-forming and 424 quiescent galaxies taken from the MaNGA survey.
Barrera-Ballesteros, J. K. +19 more
core +3 more sources
Physical parameters of three field RR Lyrae stars [PDF]
This work was partially supported by DGAPA–Universidad Nacional Autonoma de Mexico through project IN104612.Stromgren uvby - beta photometry of the stars classified as RR Lyrae stars RU Piscium, SS Piscium and TU Ursae Majoris has been used to estimate ...
Ferro, A. Arellano +2 more
core +1 more source
Comparison of bathymetric features detected by ERS2 SAR and LANDSAT TM DATA over San Matias gulf, Argentina [PDF]
It is well known that Synthetic Aperture Radar (SAR) is capable of imaging bathymetric features by detecting changes in sea surface roughness associated with bathymetry-induced surface current modulations.
Dogliotti, Ana Inés +3 more
core +1 more source
Durante los equinoccios, la secuencia temporal de las sombras proyectadas por cada uno de los puntos que forman cualquier objeto sigue una línea recta de oeste a este. Una construcción simple con hilos y un gnomon puede ser utilizada para materializar el
Gangui, Alejandro
core
Ensino de Astronomia na perspectiva da Educação Inclusiva a partir do levantamento sobre a produção bibliográfica no SNEA [PDF]
Resumo: Esta pesquisa teve como objetivo analisar como a inclusão é abordada nos trabalhos acadêmicos apresentados no Simpósio Nacional de Educação em Astronomia (SNEA).
Milena Galvani Rodrigues de Almeida +4 more
doaj +1 more source

