learn.howToCalculate
learn.whatIsHeading
Redshift (z) measures wavelength increase due to cosmic expansion or relative motion. Higher z indicates greater distance or recession speed.
الصيغة
Calculate z = (λ_obs - λ_rest) / λ_rest
- z
- (λ_obs - λ_rest) / λ_rest — (λ_obs - λ_rest) / λ_rest
دليل خطوة بخطوة
- 1Input observed and rest wavelengths
- 2Calculate z = (λ_obs - λ_rest) / λ_rest
- 3Estimate distance using Hubble constant
أمثلة محلولة
الإدخال
z = 0.1
النتيجة
Recession velocity ~10,000 km/s, distance ~400 Mpc
Using H₀ = 70 km/s/Mpc
أخطاء شائعة يجب تجنبها
- ✕Confusing Doppler redshift with cosmological redshift
- ✕Using non-relativistic formulas for high z
أسئلة شائعة
Does redshift mean object moving away?
Usually yes, but expansion also redshifts distant objects even in static space.
هل أنت مستعد للحساب؟ جرب الآلة الحاسبة Redshift المجانية
جربه بنفسك →