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Multiple star catalogues list several companions to δ 2 Lyrae, with designations such as ADS 11825. Two of them are a close pair of 10th magnitude stars about 87" from δ 2, designated components B and C. [13] The spectral type of the pair suggests that they are at the same distance as Delta 2 Lyrae, which could mean that the three stars form a triple star system.
Delta is a situational awareness [1] and battlefield management system developed and used in Ukraine. The system integrates information from a broad network of participants, including troops, civilian officials, and vetted bystanders; [2] and a wide range of streams, [1] including sensors, intelligence sources, surveillance satellites and drones, [2] especially geolocated data, which it maps ...
Sacramento–San Joaquin Delta was designated a National Heritage Area on March 12, 2019. The city of Stockton is located on the San Joaquin River at the eastern edge of the delta. The total area of the Delta, including both land and water, is about 1,100 square miles (2,800 km 2). Its population is around 500,000.
The record high and low statistics for a Category 4 hurricane, in terms of pressure in millibars (mbar) and hectopascals (hPa), are Hurricane Opal of 1995, peaking at a record low of 916 mbar/hPa, and the 1926 Nassau hurricane, peaking at a record high of 967 mbar/hPa.
Hence the Heaviside function can be considered to be the integral of the Dirac delta function. This is sometimes written as H ( x ) := ∫ − ∞ x δ ( s ) d s {\displaystyle H(x):=\int _{-\infty }^{x}\delta (s)\,ds} although this expansion may not hold (or even make sense) for x = 0 , depending on which formalism one uses to give meaning to ...
Delta Phi Epsilon: ΔΦΕ: DPhiE March 17, 1917: New York University Law School: Social International NPC: 3 Active Delta Phi Nu: ΔΦΝ: DFN May 14, 2008: Fleming College: Social Regional 4 Active Delta Pi ΔΠ: November 2, 1989: York University: Jewish and social Regional 2 Active [26] Delta Psi Delta ΔΨΔ: DPsiD DPD September 15, 1991 ...
August 13, 2024 at 11:14 AM. Alabama’s Mobile-Tensaw Delta is a more-than 400-square-mile (1,036-square-kilometer) expanse of cypress swamps, oxbow lakes, marshland, hardwood stands and rivers ...
Delta Force bodyguards in civilian clothing providing close protection to General Norman Schwarzkopf during the Gulf War, 1991. Delta Force was created in 1977 after numerous well-publicized terrorist incidents led the U.S. government to develop a full-time counter-terrorism unit. Key military and government figures had already been briefed on ...