Jinsi ya kukokotoa Stellar Parallax
Stellar Parallax ni nini?
Parallax measures nearby star distance by observing angular shift as Earth orbits Sun. 1 arcsecond parallax = 1 parsec distance.
Fomula
Calculate distance: d (pc) = 1 / parallax (arcsec)
Mwongozo wa Hatua kwa Hatua
- 1Measure apparent position change (arcseconds) from opposite Earth orbits
- 2Calculate distance: d (pc) = 1 / parallax (arcsec)
- 3Verify with other methods
Mifano Iliyotatuliwa
Ingizo
Parallax = 0.1 arcsec (Proxima Centauri)
Matokeo
d = 10 pc ≈ 3.26 light-years
Nearest star
Makosa ya Kawaida ya Kuepuka
- ✕Confusing parsec with light-year
- ✕Over-interpreting parallax errors for distant objects
Maswali yanayoulizwa mara kwa mara
Why is parallax hard to measure?
Shift is tiny even for nearby stars; requires precision astrometry.
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