Search results
Results from the WOW.Com Content Network
Polaris Aa, the supergiant primary component, is a low-amplitude Population I classical Cepheid variable, although it was once thought to be a type II Cepheid due to its high galactic latitude. Cepheids constitute an important standard candle for determining distance, so Polaris, as the closest such star, [11] is heavily studied.
A method to find the Pole star Polaris at 5x the distance of the two front stars of the Big Dipper The path of the north celestial pole among the stars due to the effect of precession, with dates shown The path of the south celestial pole among the stars due to the effect of precession
Originally, many thước of varying lengths were in use in Vietnam, each used for different purposes. According to Hoàng Phê (1988), [1] the traditional system of units had at least two thước of different lengths before 1890, [2] the thước ta (lit. "our ruler") or thước mộc ("wooden ruler"), equal to 0.425 metres (1 ft 4.7 in), and the thước đo vải ("ruler for measuring ...
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Polar distance may refer to: Polar distance (astronomy) , an astronomical term associated with the celestial equatorial coordinate system Σ(α, δ)ellipse and lower, a hyperbola Polar distance (geometry), more correctly called radial distance , typically denoted r , a coordinate in polar coordinate systems ( r , θ)
Hồ Tràm is a small beach town located in Vietnam's Bà Rịa–Vũng Tàu province, in Xuyên Mộc District. It is situated about 125 kilometers southeast of Ho Chi Minh City (HCMC). Ho Tram’s pristine, undeveloped beachfront sits at just 2 hours from HCMC by car or 90 minutes via the ferry from HCMC to Vũng Tàu . [ 1 ]
The airliner had been in service with TACA International Airlines for about two weeks after it was acquired from Polaris Aircraft Leasing in May 1988. [2] [3] The captain of the flight was Carlos Dárdano. [4] At 29 years of age, Dárdano had amassed 13,410 flight hours, with almost 11,000 of these as pilot in command.
Từ điển bách khoa Việt Nam (lit: Encyclopaedic Dictionary of Vietnam) is a state-sponsored Vietnamese-language encyclopedia that was first published in 1995. It has four volumes consisting of 40,000 entries, the final of which was published in 2005. [1] The encyclopedia was republished in 2011.