The solar disk, as viewed from Earth, is approximately 32 arc-minutes
The open cluster NGC 6253 is situated just 35 arc-minutes
north from magnitude 4 epsilon1 and magnitude 5.
The RH mini actuators combine zero backlash harmonic drive gearing with rare-earth magnet DC servo motors to provide both high torque and positional accuracy better than 2 arc-minutes
The dual shaft gearhead offers a backlash of eight arc-minutes
, has a peak torque rating of 7450 in-pound and has a peak radial load capacity of up to 1798 pounds.
The DuraTrue 90 dual shaft gearhead offers a backlash of 8 arc-minutes
, has a peak torque rating of 7,450 inch-pounds and has a peak radial load capacity of up to 1,798 pounds.
All sky brightness measurements were made within 10 arc-minutes
of NGC 6210.
It is situated only 6 arc-minutes
south and very close to magnitude 5.
The Sun, as viewed from Earth, is approximately 32 arc-minutes
Although tailored to detect the extreme ultraviolet, the satellite's state-of-the-art optics -- supersmooth, cylindrical mirrors whose thicknesses vary by no more than 10 atoms -- can't pinpoint sources to a region smaller than 3 arc-minutes
, or about one-tenth the width of the full moon as it appears in the sky.
compared to the 10 arc-minutes
typical of resolvers.
Because the cloud, which lies in the southern constellation Puppis, extends some 20 arc-minutes
across the sky, he chose large-formet photographic plates -- 25 centimeters to a side -- to make the images.
What is more, there is an extremely faint galaxy, PGC 24516/ESO 18-G13, less than two arc-minutes
east of eta Chamaeleontis, sharing this new cluster's territory.
wide (about one-thirtieth the width of the moon as it appears from Earth).
Since your review I have been correcting all the little errors including the standardized numbering of numbers greater than 1,000, the symbols for arc-minutes
and seconds, the limiting magnitude labels on some of the all sky maps, the orientation of text of the Aquarius chart, the degrees Celsius symbols, and the page numbering with "normal" numbers.
Maximum input speed rating is 5000 rpm, and average single-stage backlash is 20 arc-minutes