Home > Terms > Kazakh (KK) > байқалатын өлшем
байқалатын өлшем
1) A measure of how bright a star looks in the sky. The brighter the star, the smaller the apparent magnitude. A star that is one magnitude brighter than another (e.g., +1 versus +2) looks 2.5 times brighter. The brightest star of all, of course, is the Sun, whose apparent magnitude is -26.74, followed by Sirius, whose apparent magnitude is -1.46, Canopus (-0.72), Alpha Centauri (-0.27), Arcturus (-0.04), and Vega (+0.03). Stars of the Big Dipper are fainter, most of them around magnitude +2. On a clear, dark night, the unaided eye can see stars as faint as apparent magnitude +6, and the largest telescopes penetrate to apparent magnitude +30.
2) Measure of the observed brightness of a celestial object as seen from the Earth. It is a function of the star's intrinsic brightness, its distance from the observer, and the amount of absorption by interstellar matter between the star and the observer. The mv, of Sun, -26.5 mag. A sixth-magnitude star is just barely visible to the naked eye.
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Astronomy
- Category: General astronomy
- Company: Caltech
- Product:
- Acronym-Abbreviation:
Other Languages:
Member comments
Terms in the News
Featured Terms
Тереза Скэнлан
The winner of the 2011 Miss America pageant. Scanlan, A 17-year-old and recent high school graduate from the western Nebraska town of Gering captured ...
Contributor
Featured blossaries
Browers Terms By Category
- Meteorology(9063)
- General weather(899)
- Atmospheric chemistry(558)
- Wind(46)
- Clouds(40)
- Storms(37)
Weather(10671) Terms
- Radiology equipment(1356)
- OBGYN equipment(397)
- Cardiac supplies(297)
- Clinical trials(199)
- Ultrasonic & optical equipment(61)
- Physical therapy equipment(42)
Medical devices(2427) Terms
- Digital Signal Processors (DSP)(1099)
- Test equipment(1007)
- Semiconductor quality(321)
- Silicon wafer(101)
- Components, parts & accessories(10)
- Process equipment(6)
Semiconductors(2548) Terms
- Automobile(10466)
- Motorcycles(899)
- Automotive paint(373)
- Tires(268)
- Vehicle equipment(180)
- Auto parts(166)