1 petametre
From Infogalactic: the planetary knowledge core
(Redirected from 1 E+15 m)
Click on the thumbnail image to jump to the desired order of length magnitude: top-left is 1e6m, lower-right is 1e17m. (Image description)
Largest circle with yellow arrow indicates one light year from Sun; Cat's Eye Nebula on left and Barnard 68 in middle are depicted in front of Comet 1910 A1's orbit. Click image for larger view, details and links to other scales.
To help compare different distances this page lists lengths starting at 1015 m (1 Pm or 1,000,000 million km or 6685 astronomical units (AU) or 0.11 light years).
- 1.0 Pm = 0.105702341 light years [1]
- 1.9 Pm ± .5 Pm = 12,000 AU = 0.2 light year radius of Cat's Eye Nebula's inner core[2]
- 4.7 Pm = 30,000 AU = half light year diameter of Bok globule Barnard 68[3]
- 7.5 Pm — 50,000 AU — Possible outer boundary of Oort cloud (other estimates are 75,000 to 125,000 or even 189,000 AU (1.6, 2, and 3 light years, respectively))
- 7.7 Pm — 52,000 AU — Aphelion distance of the Great Daylight Comet of 1910
- 9.5 Pm — 63,241.1 AU — One light year, the distance travelled by light in one year
Notes
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- ↑ radius = distance times sin(angular diameter/2) = 0.2 light year. Distance = 3.3 ± 0.9 kly; angular diameter = 20 arcseconds(Reed et al. 1999)
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