NASA/MSFC Magnetograph
网页2022年1月7日 · The magnetograph works by measuring the polarization of light at various wavelength positions within a solar spectral line. Circular polarization in the opposite sense on either side of a magnetically sensitive spectral line gives a measure of the longitudinal magnetic field (the strength of the field directed toward and away from the instrument).
NASA/MSFC Magnetograph
网页2012年8月10日 · A magnetograph is used to measure magnetic fields. Solar astronomers are interested in measuring the Sun's magnetic field because of the key role it plays in solar atmospheric structure and solar activity. The most straightforward measurement of the magnetic field is that of the "longitudinal" component of the magnetic field, or …
Magnetograph - Wikipedia
网页Magnetograph. Look up magnetograph in Wiktionary, the free dictionary. Magnetograph may refer to: Solar magnetograph, an instrument that produces solar magnetograms. Survey magnetograph, a survey magnetometer that continuously records the time-variation in the geomagnetic field.
Solar magnetogram - Wikipedia
网页Solar magnetograms are produced by solar magnetographs. Some magnetographs only measure the absolute value of the magnetic field strength while others are capable of measuring the 3-dimensional magnetic field.
Optical Design of a Miniaturised Solar Magnetograph for Space
网页2023年12月13日 · Measuring the Sun’s magnetic field is a key component of monitoring solar activity and forecasting space weather. The main goal of the research presented in this paper is to investigate the possibility of reducing the dimensions and weight of a solar magnetograph while preserving its optical quality.
NASA/MSFC Magnetograph
网页Some of the sunspots had measured field strengths of 4500 Gauss, which is about 9000 times the strength of Earth's magnetic field (which is ~0.5 Gauss)! To learn more about measuring sunspot magnetic fields, press here. Approximately every eleven years, the number of spots seen on the Sun increases to a maximum.
网页Magnetographs tailored for space weather observations, such as the CMI (top) and MICRO (bottom), offer optimal performance at dra-matically lower cost. Magnetograph constellations in space offer superior data products at comparable or re-duced costs when compared with ground-based network alternatives.
ASSESSING THE BEHAVIOR OF MODERN SOLAR MAGNETOGRAPHS …
网页2012年7月3日 · Most modern magnetographs use inversion of the radiative transfer equation to infer values for both the magnetic field vector and the plasma velocity. These inferences involve all four Stokes parameters and, hence, should be more accurate than those using just one or two of them.
Editorial: Measuring Solar Magnetic Fields—An Outline of
网页2017年9月4日 · Since the early days of magnetograph measurements in the 1950s, new generations of magnetographs and spectropolarimeters have considerably increased the resolution and general capabilities of solar surface magnetic measurements from ground-based observatories.
MSFC Dome Magnetograph - NASA
网页The Dome Magnetograph (formerly called the Experimental Vector Magnetograph or EXVM) is a MSFC Solar Physics Branch prototype instrument designed to measure vector magnetic fields on the Sun from space. It incorporates a 30 cm telescope with a Fabry-Perot filter and a 2048X2048 CCD array.