与 «SIDEREAL HOUR»相关的英语书籍
在以下的参考文献中发现
sidereal hour的用法。与
sidereal hour相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
The Ever-Changing Sky: A Guide to the Celestial Sphere
We do the same to the sidereal day, and define a sidereal hour that is shorter
than its solar counterpart. If a sidereal day is 0.997 27 times the length of a solar
day, the ratio of the sidereal and solar hours must be the same. The sidereal hour
is ...
Similarly, the Greenwich sidereal time (GST) is equal to the Greenwich hour
angle of the vernal equinox. Note that, since the sidereal and solar days are each
divided up into 24 equal parts, or hours, the sidereal hour and the solar hour are
not ...
3
The new American grammar of the elements of astronomy on an ...
Hours are divided into 60 equal parts, called minutes, a minute into 60 equal
parts called seconds, a second into 60 equal parts called thirds, &c. 9. A sidereal
hour is the 24th part of a sidereal day, and is therefore less than an hour of mean
...
signature across a given meridian. It is divided into 24 sidereal hours. The
sidereal day is 3 minutes 56 seconds shorter than the mean solar day. sidereal
hour angle The angular distance measured westward along the celestial equator
from a ...
John Daintith, William Gould, Valerie Illingworth, 2009
5
A Treatise on Spherical Astronomy
A sidereal hour is divided into sixty minutes, and each minute is subdivided into
sixty seconds. In one hour of sidereal time after the meridian passage of a star its
hour angle measured in degrees would be 15°, this being the 24th part of the ...
6
A Treatise on Spherical Astronomy
A sidereal hour is divided into sixty minutes, and each minute is subdivided into
sixty seconds. In one hour of sidereal time after the meridian passage of a star its
hour angle measured in degrees would be 15°, this being the 24th part of the ...
Robert Stawell Ball, 2013
7
The perennial calendar, and companion to the almanack, ...
The duration of the mean hour is to the duration of the sidereal hour as 360° 59' 8
"33 is to 360", or as 24\ 3". 56«-5554 is to 24"; and hence we have the equation,
the duration of the mean hour the duration of the sidereal hour 860" 59' 8"-33 ...
Thomas Ignatius M. Forster, 1824
8
The Perennial Calendar,and Companion to the Almanack: ...
The duration of the mean hour is to the duration of the sidereal hour as 360° 59' 8
* 33 is to 360°, or as 24". 3m. 56*-5554 is to 24"; and hence we have the equation
, the duration of the mean hour the duration of the sidereal hour — " 360° 59' ...
9
TIME'S TELESCOPE FOR 1819
... sidereal time, by ^(59' 8"-33) = 3' 36" 33"'32 of sidereal time ; and which is
therefore the excess of the mean above the sidereal day. The duration of the
mean hour is to the duration of the sidereal hour as 360° 59' 8" 33 is to 360", or
as 24 h.
... sidereal time, by ^59' 8"-33) = 3' 36" 33"'32 of sidereal time ; and which is
therefore the excess of the mean above the sidereal day. The duration of the
mean hour is to the duration of the sidereal hour as 360° 59' 8"33 is to 360°, or as
24 h.
