Definition of Brightnesses. Meaning of Brightnesses. Synonyms of Brightnesses

- B/W) images combine black and white to produce a range of achromatic brightnesses of grey. It is also known as greyscale in technical settings. The history...
- was a German astronomer. He is known for his determinations of stellar brightnesses, positions, and distances. Argelander was born in Memel in the Kingdom...
- colors into a mixture with brightness equal to the sum of the components' brightnesses.: 4.4  An ideal physical model to demonstrate the additive model comprises...
- The solar luminosity (L☉) is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity...
- ones in the Milky Way, and modelling the relationship to their surface brightnesses. This gave an isophotal diameter for the Milky Way at 26.8 ± 1.1 kilop****cs...
- 4}+10^{-m_{2}\times 0.4}\right),} where mf is the resulting magnitude after adding the brightnesses referred to by m1 and m2. While magnitude generally refers to a measurement...
- axis of the bar it cannot be seen directly and its presence can only be inferred from the distribution of brightnesses of stars along a given direction....
- Seyfert I Galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike...
- masking layer, often called RGB32. For images with a modest range of brightnesses from the darkest to the lightest, 8 bits per primary color provides good-quality...
- discovers absorption by interstellar dust by comparing the angular sizes and brightnesses of globular clusters 1944 — Hendrik van de Hulst predicts the 21 cm hyperfine...