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bstar
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The answer BSTAR has 11 possible clue(s) in existing crosswords.
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Definitions of bstar in various dictionaries:
BSTAR - BSTAR is a way of modeling aerodynamic drag on a satellite in the SGP4 satellite orbit propagation model. Traditionally, aerodynamic resistance ("dra...
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Possible Crossword Clues |
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Rigel, for one |
It's massive and relatively hot |
Rigel, for example |
Rigel or Spica |
Massive, relatively hot luminous body |
Bright sky sight |
Rigel or Spica, by spectral type |
Bstar description |
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BSTAR is a way of modeling aerodynamic drag on a satellite in the SGP4 satellite orbit propagation model. * Traditionally, aerodynamic resistance ("drag") is given by* * * * * F * * D * * * = * * * 1 * 2 * * * ρ * * C * * d * * * A * * v * * 2 * * * * * {\displaystyle F_{D}={\frac {1}{2}}\rho C_{d}Av^{2}} * where * * * * * ρ * * * {\displaystyle \rho } * is the air density, * * * * * * C * * d * * * * * {\displaystyle C_{d}} * is the drag coefficient, * * * * * A * * * {\displaystyle A} * is the frontal area, and * * * * * v * * * {\displaystyle v} * is the velocity. * The acceleration due to drag is then * * * * * * a * * D * * * = * * * * F * * D * * * m * * * = * * * * ρ * * C * * d * * * A * * v * * 2 * * * * * 2 * m * * * * * * {\displaystyle a_{D}={\frac {F_{D}}{m}}={\frac {\rho C_{d}Av^{2}}{2m}}} * In aerodynamic theory, the factor * * * * * B * = * * * * * C * * d * * * A * * m * * * * * {\displaystyle B={\frac {C_{d}A}{m}}} * is called the ballistic coefficient, and its unit is area per mass. Further incorporating a reference air density and the factor of two in the denominator, we get the starred ballistic coefficient: * * * * * * B * * ∗ * * * = * * * * * ρ * * 0 * * * B * * 2 * * * = * * * * * ρ * * 0 * * * * C * * d * * * A * * * 2 * m * * * * * * {\displaystyle B^{*}={\frac {\rho _{0}B}{2}}={\frac {\rho _{0}C_{d}A}{2m}}} * thus reducing the expression for ... |