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Q&A: General Astronomy and Space Science

Q:
Do you have any images or data that show that there is a discrepancy in location of any objects (especially galaxies) between X-Rays and optical/radio wavelengths?

A:
Sometimes there are apparent discrepancies between the positions of objects in different wavelengths, but this is caused by an error in calculating the position. In many cases you see different things in different wavelengths, e.g. in a galaxy you tend to see hot gas and hot, accreting stars in X-rays and cool gas and normal, cooler stars in optical light.

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