Input interpretation
graphite | freezing point
Result
3675 °C (degrees Celsius)
Unit conversions
3948 K (kelvins)
6646 °F (degrees Fahrenheit)
7106 °R (degrees Rankine)
2940 °Ré (degrees Réaumur)
1937 °Rø (degrees Rømer)
Blackbody information
perceived color | peak wavelength | 734 nm (nanometers) peak frequency | 232.1 THz (terahertz)
Corresponding main-sequence star properties
temperature class | K8 absolute magnitude | +7.6 (bolometric) mass | 0.61 M_☉ radius | 0.56 R_☉ luminosity | 0.068 L_☉ B-V color index | 1.4 lifetime | 34 billion yr end state | carbon-oxygen white dwarf
Examples of K8 main-sequence stars
Groombridge 1618 | HIP 98746 | HIP 54646 | HIP 21553 | Gl 795 B
Corresponding quantities
Thermodynamic energy E from E = kT: | 34 ceV (centielectronvolts)
Blackbody energy flux Φ from Φ = σT^4: | 1.377×10^7 W/m^2 (watts per square meter)
Approximate luminous exitance from a planar blackbody radiator perpendicular to its surface: | 7.295×10^8 lx (lux)