Astronomy Picture of the Day ·

TT Cygni: Carbon Star

The Astronomy Picture of the Day for December 18, 1998 is “TT Cygni: Carbon Star,” an image. It is credited to Credit: H. Olofsson (Stockholm Observatory) et al.. The original explanation runs about 156 words.

TT Cygni: Carbon Star
Credit: H. Olofsson (Stockholm Observatory) et al. Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“TT Cygni is a cool red giant star with a wind. This false-color picture of TT Cyg was made using a coordinated array of millimeter wavelength radio telescopes and shows radio emission from carbon monoxide (CO) molecules in the surrounding gas.”

— APOD editors, December 18, 1998

Read the full explanation on science.nasa.gov

At a glance

Date
December 18, 1998
Type
Image
Credit
Credit: H. Olofsson (Stockholm Observatory) et al.
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 156 words

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On this day: December 18 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.