I was surprised to see not one but two other stars within 8 arcseconds
of the central star with proper motions and parallax measurements essentially identical to that of the central star, within Gaia's measurement error.
GMx mounts can hold 12.5mm, 25mm and 50mm square optics of any thickness greater than 2mm, and offer up to 8[degrees] of total rotation in each axis, with a resolution as low as 3.2 arcseconds
. All adjustments are accessed from the top of the mount to facilitate their use in space-constrained systems and instruments.
Each terrain parameter was produced at 1-arcsecond resolution and reduced to 3 arcseconds
to serve the needs of the Soil and Landscape Grid of Australia, for compatibility with GlobalSoilMap specifications and to decrease data volume for easy distribution.
The planet's disc will exceed 45 arcseconds
in diameter, so a telescope employing a magnification of just 40x will make it appear the same size as our Moon to the unaided eye.
"We can, for the first time, make long-exposure images that resolve objects just 0.02 arcseconds
across--the equivalent of a dime viewed from more than 100 miles away.
In the middle two weeks of April, Mars will shine with a brightness of magnitude -1.5, matching the luster of Sirius, and in a telescope it will appear 15.1 arcseconds
The cluster is 95 arcseconds
across, meaning it is three times the size of the full Moon, although it is quite diffuse.
The second-brightest star in the Sickle is Gamma ([gamma]) Leonis or Algieba, which a telescope reveals to be a fine double star (separation 4.5 arcseconds
) with both components pale yellow-orange.
Previous data has been limited to 30 arcsecond
cells, but for SVT, the cells are reduced to 9 arcseconds
and Garmin is actually considering 6 arcsecond
Its apparent size will be 25.1 arcseconds
, enough to make it the biggest object in the night sky besides the moon.
With this information, scientists can estimate the number of people located in rectangles measuring 30 arcseconds
of the Earth's circumference on a side.
Adjusting the position of a computerized mount and having software report that your alignment is within a few arcseconds
of the celestial pole may be very satisfying, but it's likely true only for the current conditions.