All Questions
Tagged with black-body temperature
6 questions
6
votes
0
answers
113
views
Cooling timescale for an interstellar dust grain
I would like to estimate the cooling timescale for an interstellar dust grain, starting at 200K, down to 100 K.
The equation I have come up with is:
$\displaystyle t_{cooling} = \frac{mC\Delta T}{Q_{...
- 1,386
6
votes
1
answer
415
views
At high temperatures, do planets glow like blackbodies?
I've been messing around in Universe Sandbox for a while and noticed that as a planet heats up, it glows like a blackbody starting at ~4000 K. Is the simulation here accurate, or do very hot planets ...
- 6,733
1
vote
1
answer
274
views
Blackbody curve in RGB for objects less than 1500 K?
We know the colors of stars that have a temperature greater than 1000-1500 K, shown here. However, I am wondering about those stars/brown dwarfs with surface temperatures of less than 1500 K. Is there ...
- 6,733
6
votes
1
answer
3k
views
What is the RGB curve for blackbodies?
I created a program to convert the temperature (in Kelvin) of a blackbody to RGB color. However, it is slightly inaccurate, and the deviations increase for values greater than 10000K and less than ...
- 6,733
0
votes
0
answers
102
views
What was the energy/wavelength/frequency of the CMB when first emitted/released?
Given the z redshift of 1089, and the temperature difference between then and now of about 1089, I tried scaling the ev, freq. and wavelength by 1089....
Is that right?
I get a freq. of about 240 ...
- 5,585
5
votes
3
answers
932
views
How to Distinguish between Temperature and Doppler effect using Black-body radiation?
I understand that the radiation of a body can be described using the curve for black-body radiation. In the sense that a hotter body will be blue shifted and a cooler body will be red shifted.
The ...
- 153