// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
sci.cosmic-microwave-background Calculator
Calculates CMB photon temperature from redshift: T(z) = T₀(1+z), and photon energy from Planck's law at the CMB peak wavelength. CMB temperature today T₀ = 2.725 K — at recombination (z ≈ 1,100), T ≈ 3,000 K and photons decoupled from matter.
Inputs
T Cmb K
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
L Multipole
Reference formula or conversion factor shown for context.
Results
CMB peak frequency (GHz)
Sample size or count used in the calculation.
CMB peak wavelength (mm)
The computed linear length.
angular scale at ℓ (degrees)
The magnitude or severity on the applicable scale.
Wien law: ν_peak = 2.82kT/h
Sample size or count used in the calculation.
CMB temperature
The value at the specified point or condition.
first acoustic peak
Reference formula or conversion factor shown for context.