Astronomy Picture of the Day ·

X-Ray Stars of 47 Tuc

The Astronomy Picture of the Day for July 21, 2005 is “X-Ray Stars of 47 Tuc,” an image. It is credited to Credit: C.Heinke ( Northwestern U. ) et al. CXC , NASA. The original explanation runs about 177 words.

X-Ray Stars of 47 Tuc
Credit: C.Heinke ( Northwestern U. ) et al. CXC , NASA Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“Visible light images show the central region of globular cluster 47 Tuc anae is closely packed, with stars less than a tenth of a light-year apart.”

— APOD editors, July 21, 2005

Read the full explanation on science.nasa.gov

At a glance

Date
July 21, 2005
Type
Image
Credit
Credit: C.Heinke ( Northwestern U. ) et al. CXC , NASA
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 177 words

All of July 2005 → · 2005 by month → · Full archive since 1995 →

Topics in this entry

Star clusters

Topics are matched from words in the title and explanation.

On this day: July 21 in other years

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Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.