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1 exametre
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(Redirected from 1 E 18 m)
To help compare different distances this page lists lengths between 1018 m (1 Em or 110 light years) and 1019 m (1100 light years).
- 1.4 Em — 145 light years — Diameter of Messier Object 13 (a typical globular cluster)[citation needed]
- 3.1 Em — 310 light years — Distance to Canopus according to Hipparcos[citation needed]
- 4.0 Em — 430 light years — Distance to Betelgeuse according to Hipparcos[citation needed]
- 1.6 Em — 172 ± 12.5 light years — Diameter of Omega Centauri (one of the largest known globular clusters, perhaps containing over a million stars)[1][2]
- 6.2 Em — 650 light years — Distance to the Helix Nebula, located in the constellation Aquarius[citation needed]
- 7.3 Em — 730 light years — Distance to Rigel according to Hipparcos[citation needed]
- 9.5 Em — 900 light years — Diameter of the Tarantula Nebula[citation needed]
- 9.5 Em — 1000 light years — Distance to pulsar PSR 1257+12[citation needed]
[edit] See also
| Orders of magnitude for length in E notation, shorter than one metre: | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <-24 | -24 | -23 | -22 | -21 | -20 | -19 | -18 | -17 | -16 | -15 | -14 | -13 | -12 | -11 | -10 | -9 | -8 | -7 | -6 | -5 | -4 | -3 | -2 | -1 | 0 |
| longer than 1 metre: | |||||||||||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
[edit] Notes
- ^ distance × sin( diameter_angle ), using distance of 5kpc (15.8 ± 1.1 kly) and angle 36.3', = 172 ± 12.5 ly.
- ^ van de Ven, G.; van den Bosch, R. C. E.; Verolme, E. K.; de Zeeuw, P. T. (January II 2006). "The dynamical distance and intrinsic structure of the globular cluster ω Centauri". Astronomy and Astrophysics 445 (2): 513–543. doi:. http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2006A%26A...445..513V. "best-fit dynamical distance D=4.8±0.3 kpc ... consistent with the canonical value 5.0±0.2 kpc obtained by photometric methods".