semidiameter


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Related to semidiameter: parallax

sem·i·di·am·e·ter

 (sĕm′ē-dī-ăm′ĭ-tər, sĕm′ī-)
n.
The apparent radius of a celestial body when viewed as a disk from Earth.

semidiameter

(ˌsɛmɪdaɪˈæmɪtə)
n
the apparent radius of a star or other celestial body when viewed from Earth

sem•i•di•am•e•ter

(ˌsɛm i daɪˈæm ɪ tər, ˌsɛm aɪ-)

n.
half of a diameter.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.semidiameter - the apparent radius of a celestial body when viewed as a disc from the earth
radius, r - the length of a line segment between the center and circumference of a circle or sphere
Translations
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References in classic literature ?
Thus let be the horizontal parallel, and p the apparent semidiameter "
For microsatellites with small volumes and quality such as PNS, which have semidiameter of less than 1 m or far less than 1 m, it is easy to ascertain that each element [a.sub.rirj](ri [less than or equal to] 3, rj [less than or equal to] l) in Ax is less than 1.
Surf Type Radius (mm) Thickness (mm) Glass OBJ Standard 15 10 1 Standard 75.638249 0.228611 E48R 2 Even Asphere 0.730586 0.375833 3 Even Asphere 0.677934 1.181807 CAF2 4 Standard -1.704216 0.173513 STO Standard Infinity 0.055548 6 Standard 15.517551 0.530639 CAF2 7 Standard -1.085120 0.367124 8 Even Asphere -3.065604 0.285170 COC 9 Even Asphere 1.970309 1.236203 IMA Infinity -- Surf Semidiameter (mm) Conic OBJ 10.143393 0 1 1.467268 0 2 0.998383 -0.7580 3 0.908234 -1.5743 4 0.692586 0 STO 0.380945 0 6 0.441318 0 7 0.619864 0 8 0.714128 14.9694 9 1.097346 -43.1582 IMA 2.328690 0 Table 4: Merit function table.
The orbits are distributed uniformly along the equator and the major axis semidiameter of orbital ellipse is about 26560 kilometers.