Home > Terms > Serbian (SR) > апсолутнa магнитудa
апсолутнa магнитудa
1) A measure of the intrinsic brightness of a star or galaxy. Absolute magnitude is defined as the apparent magnitude the star or galaxy would have if it were 32.6 light-years (10 parsecs) from Earth. The lower an object's absolute magnitude, the greater its intrinsic brightness. For example, the Sun has an absolute magnitude of +4.83, while Sirius, whose intrinsic brightness is greater, has an absolute magnitude of +1.43. A star that is one absolute magnitude brighter than another (e.g., +4 versus +5) is 2.5 times intrinsically brighter; a star that is 5 absolute magnitudes brighter is 100 times intrinsically brighter; and a star that is 10 absolute magnitudes brighter is 10000 times intrinsically brighter.
2) The absolute magnitude (g) of a solar-system body such as an asteroid is defined as the brightness at zero phase angle when the object is 1 AU from the Sun and 1 AU from the observer.
- 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
Mona Liza
The Mona Lisa is widely recognized as one of the most famous paintings in the history of art. It is a half-length portrait of a seated woman painted ...
Contributor
Featured blossaries
stanley soerianto
0
Terms
107
Blossaries
6
Followers
Top 10 Most Popular Search Engines
Browers Terms By Category
- Air conditioners(327)
- Water heaters(114)
- Washing machines & dryers(69)
- Vacuum cleaners(64)
- Coffee makers(41)
- Cooking appliances(5)
Household appliances(624) Terms
- Authors(2488)
- Sportspeople(853)
- Politicians(816)
- Comedians(274)
- Personalities(267)
- Popes(204)
People(6223) Terms
- Material physics(1710)
- Metallurgy(891)
- Corrosion engineering(646)
- Magnetics(82)
- Impact testing(1)
Materials science(3330) Terms
- Ceramics(605)
- Fine art(254)
- Sculpture(239)
- Modern art(176)
- Oil painting(114)
- Beadwork(40)
Arts & crafts(1468) Terms
- Algorithms & data structures(1125)
- Cryptography(11)