
Home > Terms > Spanish, Latin American (XL) > magnitud
magnitud
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.
- Besedna vrsta: noun
- Sinonim(-i):
- Blossary:
- Industrija/področje: Astronomy
- Category: Planetary science
- Company: PSRD
- Proizvod:
- Akronim/okrajšava:
Ostali jeziki:
Kaj želite sporočiti?
Terms in the News
Featured Terms
Disney en China
Disney ha anunciado que llevará sus afamadas películas al mercado chino de cable. El acuerdo proveerá películas de Disney, tanto nuevas como clásicas, ...
Sodelavec
Featured blossaries
stanley soerianto
0
Terms
107
Glosarji
6
Followers
10 Classic Cocktails You Must Try


stanley soerianto
0
Terms
107
Glosarji
6
Followers
Best Beaches In The World


Browers Terms By Category
- News(147)
- Radio & TV broadcasting equipment(126)
- TV equipment(9)
- Set top box(6)
- Radios & accessories(5)
- TV antenna(1)
Broadcasting & receiving(296) Terms
- SAT vocabulary(5103)
- Colleges & universities(425)
- Teaching(386)
- General education(351)
- Higher education(285)
- Knowledge(126)
Education(6837) Terms
- Muscular(158)
- Brain(145)
- Human body(144)
- Developmental anatomy(72)
- Nervous system(57)
- Arteries(53)
Anatomy(873) Terms
- Material physics(1710)
- Metallurgy(891)
- Corrosion engineering(646)
- Magnetics(82)
- Impact testing(1)
Materials science(3330) Terms
- General Finance(7677)
- Funds(1299)
- Commodity exchange(874)
- Private equity(515)
- Accountancy(421)
- Real estate investment(192)