Home > 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.
- Loại từ: noun
- Từ đồng nghĩa:
- Blossary:
- Ngành nghề/Lĩnh vực: Astronomy
- Category: Planetary science
- Company: PSRD
- Sản phẩm:
- Viết tắt-Từ viết tắt:
Ngôn ngữ khác:
Bạn muốn nói gì?
Terms in the News
Featured Terms
teorija velikog praska
Current model of galactic evolution in which the universe was created from an intense and brilliant explosion from a primeval fireball.
Người đóng góp
Featured blossaries
willarth09
0
Terms
1
Bảng chú giải
0
Followers
The Mortal Instruments: City of Bones Movie
Sanket0510
0
Terms
22
Bảng chú giải
25
Followers
10 Bizarre ways Dreams and Reality Intersect
Browers Terms By Category
- General Finance(7677)
- Funds(1299)
- Commodity exchange(874)
- Private equity(515)
- Accountancy(421)
- Real estate investment(192)
Financial services(11765) Terms
- Lumber(635)
- Concrete(329)
- Stone(231)
- Wood flooring(155)
- Tiles(153)
- Bricks(40)
Building materials(1584) Terms
- General law(5868)
- Courts(823)
- Patent & trademark(449)
- DNA forensics(434)
- Family law(220)
- Legal aid (criminal)(82)
Legal services(8095) Terms
- Clock(712)
- Calendar(26)