Astronomical Observations & Research

Copyright © 2004 Abdul Ahad. All rights reserved.

			Translating angular separation into linear distance using simple Trigonometry: Calculating the linear distance between the two suns in the 70 Ophiuchi system from observed separation and given distance of 16.6 light years [Image: Abdul Ahad] NOTE: Just a few words of caution - the above method is only valid if the orbital ellipse is sufficiently widely presented to the observer (as is the case with 70 Ophiuchi), where the two stars are near equi-distant from Earth. In all other cases, a full 3D analytical solution will be required which will take account of the binary system's orbit orientation in space relative to the observer. [Back to previous page] AA Institute of Space Science & Technology Copyright © 2004 Abdul Ahad. All rights reserved.

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