answersLogoWhite

0

0.01 arc second is one hundredth of an arc-second.
An arc-second is one sixtieth of an arc-minute. (There are about 30 arc-seconds across the visible diameter of the Sun or Moon).
An arc-minute is one sixtieth of a degree.
A degree is one three hundred and sixtieth of a circle.
So a hundredth of an arc-second is a good resolution for a fine telescope.
If you have an image of the Moon where the moon is 3000 pixels wide (probably twice the width of your computer screen) then 0.01 arc-second is one pixel.

User Avatar

Wiki User

15y ago

What else can I help you with?

Continue Learning about Astronomy

What are the two words that when put together derive the term parsec?

A parsec is a distance corresponding to a parallax of one arcsecond. The two words that form "parsec" are parallax and arcsecond.


How many kilometers are equivalent to one arcsecond?

Oh, that's such a wonderful question! You know, measuring in astronomy can be like finding a happy little tree in a vast forest. Just like adding the perfect touch of paint to a beautiful landscape, one arcsecond is approximately equivalent to just under oward.l29010545 kilometers on this helpful little globe of ours. Enjoy the subtle intricacies of our universe's measurements!


Two stars having annual parallax of 0.1 and 0.02 arc seconds respectively.If they appear to have same magnitude. estimate the actual distance of these stars from us?

The 'parsec' (3.26 light years) is the distance at which an object exhibits an annual parallax of 1 arcsecond. Although the whole idea is based in the trigonometric tangent of angles, we can assume a perfectly linear relationship for such small angles. -- 0.1 arcsecond ==> 3.26/0.1 = 32.6 light years -- 0.02 arcsecond ==> 3.26/0.02 = 163 light years Their magnitude has nothing to do with the question you asked. It may be relevant to the second part of the question from which you copied only the first part. Thanks for including all of the given data, though.


An angle of 1 arcsecond is?

1 degree = 60 minutes1 minute = 60 secondsThus, a degree has 3600 seconds.1 degree = 60 minutes1 minute = 60 secondsThus, a degree has 3600 seconds.1 degree = 60 minutes1 minute = 60 secondsThus, a degree has 3600 seconds.1 degree = 60 minutes1 minute = 60 secondsThus, a degree has 3600 seconds.


What is the diameter of a star if its angular diameter is 0.044 arcsecond and its distance is 427 light-years?

The formula to calculate diameter (D) using angular diameter (θ) and distance (D) is D = 2 * D * tan(θ/2). Plugging in the values given (θ = 0.044 arcseconds, D = 427 light-years), the diameter of the star is approximately 1.26 million kilometers.