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Speed of light in vacuum (c): 3 × 10⁸ m/s

time offset	distance (3×)
...	...	[unfinished]
10-9 s	10-1+ m	Objects a foot away are seen as they were a nanosecond in the past.
10-8 s	100+ m	Lightspeed delay across a human is about 5 nanosec. But neurons are a lot slower.
10-7 s	101+ m
10-6 s	102+ m
10-5 s	103+ m
10-4 s	104+ m
10-3 s	105+ m
10-2 s	106+ m
10-1 s	107+ m	Circle the earth in 1/10 s. | Geosync communication satelites.
100 s	108+ m	1.25 sec from moon. [Collins story.]
101 s	109+ m
102 s	1010+ m
103 s	1011+ m	8 minutes from sun.
104 s	1012+ m
105 s	1013+ m
106 s	1014+ m
107 s	1015+ m
108 s	1016+ m	9 years (0.3 Gigasecond) from Sirius (108×2.7 s)
109 s	1017+ m
1010 s	1018+ m
1011 s	1019+ m
1012 s	1020+ m	100 kyr (3 terasecond) across galactic disk (1012×3 s)
1013 s	1021+ m
1014 s	1022+ m
1015 s	1023+ m
1016 s	1024+ m
1017 s	1025+ m
1018 s	1026+ m	1/2 Exasecond (~15 Gyr) from edge of visible universe (1018×~1/2)
	1027 m	Current distance to edge (Note[1]).

Notes

Gossip

Back of my envelope...

across galactic disk
parsec is 3.1 × 10¹⁶ m
disk is ~30 kpc, so 9.3 × 10²⁰ m
3.1 × 10¹² s.

from edge of visible universe
~0.4 × 10¹⁸ s

Doables:
  Cleanup
  Comment on how conveniently `age of universe' works.

History:
  1998.Sep.14  Added `current vs ltyr distance' note, and this `History'.
  1997.Summer  Created.