How far

So it has come to my attention through someone else that in battlestar glactica, they refer to distances in space by microns. Not so bad except as all of you know space is huge. A micron also known as a micro meter is very finite in its size. A micron is a meter times ten to the negative 6. in comparison, wikipedia has supplied me with some things measured in microns

To help compare different orders of magnitude this page lists some items with lengths between 10⁻⁶ and 10⁻⁵ m (between 1 and 10 micrometres, or µm).

Distances shorter than 1 µm

• ~0.7–300 µm — Wavelength of infrared radiation
• 1 µm — the side of square of area 10⁻¹² m²
• 1 µm — edge of cube of volume 1 fL
• 1–10 µm — diameter of typical bacterium
• 1.55 µm — wavelength of light used in optical fibre
• 3–4 µm — size of a typical yeast cell
• 3–5 µm — size of a human spermatozoon's head (radius by length)^{[citation needed]}
• 6 µm — anthrax spore
• 6–8 µm — diameter of a human red blood cell
• 7 µm — diameter of the nucleus of typical eukaryotic cell
• 3–8 µm — width of strand of spider web silk^[1]
• 8 µm — width of a chloroplast
• 9 µm — thickness of the tape in a 120-minute compact cassette.
• about 10 µm — size of a fog, mist or cloud water droplet

also the size of a human hair is 

The diameter of human hair varies from 17 to 180 µm (0.00067 to 0.0071 in)

So you see that to use a micron in space as it was in battlesatr glactica, is just not very feasible.