1,000,000 kelvin
1,000,000 KTemperature · definition
Celsius and Fahrenheit have shifted zero points. Differences are useful; “twice as hot” in °C or °F is not a physical temperature ratio.
Temperature
Just how hot is 1,000,000 kelvin?
Stars
1,000,000 K
1,000,000 kelvin
Celsius and Fahrenheit have shifted zero points.
1,000,000 KTemperature
0 K · absolute zero
Neutron star surface
Neutron star surface temperature is the intense heat found at the outer layer of a young neutron star after a supernova.
1,000,000 KRepresentative young surface temperature
0 K · absolute zero
Celsius and Fahrenheit zero points are offsets. Compare temperature differences, not ratios in °C or °F. The kelvin axis starts at absolute zero.
A little perspective
1,000,000 kelvin is the same as the young surface temperature of a neutron star’s surface.
Measurements, assumptions & sources +
1,000,000 kelvin
Temperature: 1,000,000 K; definition.
Celsius and Fahrenheit have shifted zero points. Differences are useful; “twice as hot” in °C or °F is not a physical temperature ratio.
Neutron star surface
Representative young surface temperature: 1,000,000 K; representative; range 100,000 K–10,000,000 K.
A representative one-million-kelvin thermal surface scale for a young neutron star. Surface temperature falls as the remnant cools and depends on age, magnetic field, atmosphere and observing model.
NASA Imagine the Universe — Neutron stars
The marked representative young surface temperature is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 1,000,000 kelvin with the young surface temperature of a neutron star’s surface. The notes below explain how each value was chosen.
Neutron star surface
1,000,000 KRepresentative young surface temperature · representative · range 100,000 K–10,000,000 K
A representative one-million-kelvin thermal surface scale for a young neutron star. Surface temperature falls as the remnant cools and depends on age, magnetic field, atmosphere and observing model.
- Comparing
- Temperature ↔ Representative young surface temperature
- Relative size
- We compare temperatures using a difference in kelvins, not a ratio.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- We use 1,000,000 K for the young surface temperature of a neutron star’s surface; the recorded range is 100,000 K–10,000,000 K.
- The young surface temperature of a neutron star’s surface: This is a representative comparison value; individual specimens or conditions can vary.
- The recorded ranges overlap, so the ordering can vary even though the central values differ.
Compare temperature differences in kelvins; Celsius and Fahrenheit ratios are not meaningful.
999,730 °Cdegrees Celsius
1,799,500 °Fdegrees Fahrenheit
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