stellar luminosity meaning in Hindi

Examples

1. He is best known for his contribution on stellar luminosity and galactic structure.
2. Many stellar properties are calculated based on stellar luminosity, such as radii, ages, etc.
3. The distance for Westerhout 40 has been estimated to be 500 pc using models for stellar luminosities.
4. An alternate way to measure stellar luminosity is to measure the star's apparent brightness and distance.
5. When combined with incorrect assumed absolute bolometric magnitudes for the Sun this can lead to systematic errors in estimated stellar luminosities.
6. The total range of stellar luminosities, then, occupies a range of 27 magnitudes, or a factor of 60 billion.
7. The stellar luminosity shows indications of ellipsoidal variation, as the primary component is partly filling its Roche lobe due to gravitational interaction between the two stars.
8. In cooler stars, the width of observed oxygen lines, such as O I at 777.4 nm ., can be used to calibrate directly against stellar luminosity.
9. This end phase causes a dramatic rise in stellar luminosity, where the released energy is distributed over a much larger surface area, even though the average surface temperature is lower.
10. Pi 2 Cygni is a Class B3 blue giant star with an apparent magnitude of + 4.23 and a stellar luminosity nearly 2, 200 times that of the Sun.