interstellar extinction वाक्य
उदाहरण वाक्य
मोबाइल
- The globular cluster 2MASS-GC02 is not visible the visible portion of the electromagnetic spectrum, due to interstellar extinction, but was spotted in infrared light.
- A comparison of this value with the apparent magnitude allows the approximate distance to be determined, after correcting for interstellar extinction of the luminosity because of gas and dust.
- In 1971, HR 5171A was identified as a G8 hypergiant, reddened by over 3 magnitudes of interstellar extinction and also by half a magnitude of extinction from circumstellar material.
- Thus a fair measure of its absolute magnitude can be determined without knowing its distance nor the interstellar extinction, allowing astronomers to estimate a star's distance and extinction without parallax calculations.
- Wray 17-96 has an absolute bolometric magnitude of & minus; 10.9 ( 1.8 million solar units ), making it one of the interstellar extinction and the visual brightness is reduced by nearly 9 magnitudes.
- Measurements in different eras are not always calibrated to the same spectral bands, and the values have to be de-reddened to account for interstellar extinction, but the small change corresponds to records of the spectrum and are considered to be real.
- By analysing the interstellar extinction between Earth and the system, G�ver and colleagues calculated the most likely distance to be 5.8 kpc ( 19, 000 light-years ), and the neutron star's mass to be 1.74 ?0.14 times that of the Sun and radius to be a mere 9.3 ?1.0 km.
- Interstellar extinction the dimming effects of dust and gas in space between it and us " or " to Atmospheric extinction which itself can mean either the dimming by absorbtion of our atmosphere in general, or the extra atmospheric dimming / absorbtion caused by the star being closer to the horizon than the zenith ( since then we're looking at it through more atmosphere than if it were at the zenith ).
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