1 E+40 m³
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To help compare the orders of magnitude of different volumes, here is a list of volumes between 1040 m3 and 1050 m³. See also volumes or capacities of other orders of magnitude and corresponding lengths.
[edit] 1 E+40 m³ to 1 E+43 m³
- 1.1 × 1041 m³ = daily increase in volume of the Cat's Eye Nebula[1]
[edit] 1 E+43 m³ to 1 E+46 m³
- 4 × 1043 m³ = annual increase in volume of the Cat's Eye Nebula[1]
- 2 × 1045 m³ = approximate volume of the Stingray Nebula[2]
[edit] 1 E+46 m³ to 1 E+49 m³
Planetary nebula typically have volumes in this range.
- 2.7 × 1046 m³ = volume of the Cat's Eye Nebula[1]
- 5.5 × 1046 m³ = the volume of a Bok globule like Barnard 68[3][4]
- 4.4 × 1047 m³ = the volume of a Bok globule one light year across[3][4]
- 8.47 × 1047 m³ = 1 cubic light-year
- ~1.7 × 1048m³ = volume of the Oort Cloud, assuming a radius of 50000 AU
[edit] 1 E+49 m³ and larger
- 2.93799894 × 1049 m³ = 1 cubic parsec
[edit] Notes
- ^ a b c 4*Pi*R^3/3; core radius R = distance times sin(angular diameter / 2 ) = 0.2 light year.Distance = 3.3 ± 0.9 kly; angular diameter = 20 arcseconds; expands 10 milliarcseconds per year.(Reed et al. 1999)
- ^ R=0.08 light years; (4*Pi/3)*R^3=1.86 × 1045 m³
- ^ a b Michael Szpir (May-June 2001). "Bart Bok's Black Blobs". American Scientist. Archived from the original on 2003-06-29. http://web.archive.org/web/20030629033609/http://www.americanscientist.org/template/AssetDetail/assetid/14678. Retrieved on 2008-11-19. "Bok globules such as Barnard 68 are only about half a light-year across and weigh in at about two solar masses"
- ^ a b their size varies: a globule one quarter light year in radius has 5.5 × 1046 m³, one a half light year in radius has 4.4 × 1047 m³, one a light year in radius has 3.5 × 1048 m³
[edit] References
- Reed, Darren S.; Balick, Bruce; Hajian, Arsen R.; Klayton, Tracy L.; Giovanardi, Stefano; Casertano, Stefano; Panagia, Nino; Terzian, Yervant (1999), "Hubble Space Telescope Measurements of the Expansion of NGC 6543: Parallax Distance and Nebular Evolution", Astronomical Journal 118 (5): 2430–2441, doi:, http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1999AJ....118.2430R

