10 TermsHome > Terms > Serbo Croatian (SH) > magnituda
magnituda
Astronomical brightness measured on a logarithmic scale, based on the ancient practice of noting that the brightest stars in the sky were of "first importance" or "first magnitude", the next brightest being "second magnitude" etc. The human eye is a logarithmic detector, and in 1854 Pogson formalized this scale and defined a difference of 5 magnitudes to be exactly a factor of 100 in brightness. The scale is calibrated to the bright star Vega which is defined to have a magnitude of 0. For reference, the faintest naked-eye magnitude visible from a dark site is +6. Comet C/1996 B2 Hyakutake reached magnitude 0 in late March 1996.
0
0
Improve it
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Astronomy
- Category: Planetary science
- Company: PSRD
- Product:
- Acronym-Abbreviation:
Other Languages:
Member comments
Terms in the News
Featured Terms
Industry/Domain: Chemistry Category: General chemistry
sila
An entity that when applied to a mass causes it to accelerate. Sir Isaac Newton's Second Law of Motion states: the magnitude of a ...
Contributor
Featured blossaries
Browers Terms By Category
- American culture(1308)
- Popular culture(211)
- General culture(150)
- People(80)
Culture(1749) Terms
- Biochemistry(4818)
- Genetic engineering(2618)
- Biomedical(4)
- Green biotechnology(4)
- Blue biotechnology(1)
Biotechnology(7445) Terms
- Air conditioners(327)
- Water heaters(114)
- Washing machines & dryers(69)
- Vacuum cleaners(64)
- Coffee makers(41)
- Cooking appliances(5)
Household appliances(624) Terms
- Mapping science(4042)
- Soil science(1654)
- Physical oceanography(1561)
- Geology(1407)
- Seismology(488)
- Remote sensing(446)
Earth science(10026) Terms
- Plastic injection molding(392)
- Industrial manufacturing(279)
- Paper production(220)
- Fiberglass(171)
- Contract manufacturing(108)
- Glass(45)