Sentences with phrase «luminosity varies»

Although the sunlight that illuminates our days provides a seemingly reliable beacon, the Sun's visible luminosity varies in tandem with the Sun's 11 - year magnetic activity cycle and these changes could affect our climate.

Their luminosity varies on time scales of a few months to as short as a few days.

The sun goes through an 11 - year solar cycle during which its luminosity varies according to the number of sunspots appearing on its face.

Not exact matches

With a visual luminosity that has reportedly varied between 0.000053 and 0.00012 of Sol's (based on a distance of 4.22 light - years) the star is as much as 19,000 times fainter than the Sun, and so if it was placed at the location of our Sun from Earth, the disk of the star would barely be visible.

Below about 0.5 solar masses, the luminosity of the star varies as the mass to the power of 2.3, producing a flattening of the slope on a graph of mass versus luminosity.

If you apply the relationship between mass and luminosity to the H - R diagram, you find that stars along the main sequence vary from the highest (approximately 30 solar masses) at the top left to the lowest (approximately 0.1 solar mass) at the bottom right.

The result reveals varied veils of alluring color buried deep within the seemingly monochromatic single pigment, glowing with intense luminosity.

A final treat anchored in the corners of the back gallery is a series of oil paintings by Adam Umbach, works that flirt with wistful nostalgia, painted with a technique and luminosity that draws inspiration from such varied artists as Gerhard Richter and Dan Flavin.

A frenzy of color in varying luminosity, the sculptures emblematize the balance between a rugged, industrial verve and the discerning, meditative precision of collage.