Astronomy Stack Exchange is a question and answer site for astronomers and astrophysicists. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I was wondering, is the surface of Venus so hot that it would glow red in the dark (e.g. on the dark side of Venus)? I am working on making a solar system simulator, and that would make for a great level if it is accurate.

share|improve this question
up vote 4 down vote accepted

The average surface temperature on Venus is 462 °C. You would need a temperature above 800 °C before you would notice any light.

Here are some calculated radiation outputs of the surface temperature of Venus, a 1000 °C black body and the sun.

share|improve this answer
I found this reference that shows it can be seen as low as 500 °C, which is still above (but very close to) your stated average of 462 °C on Venus. Therefore at least on average, the surface probably still would not glow. However, I wonder if there are still parts of Venus that would be this hot (e.g. possibly the equator)? – Jonathan Jun 23 '14 at 17:24
Old question I realize, but Venus' equator and Venus' north and south poles are the same temperature. The planet traps heat efficiently enough that the temperature is consistent at any latitude and any season. – userLTK Apr 21 '15 at 8:51

Simple answer: No, the only place on Venus's surface where visible light is emitted from rock is in the lava flows.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.