Using the Nanshan One-meter Wide-field Telescope (NOWT), astronomers from China have observed the open cluster NGC 2355 and its surrounding field, searching for variable stars. They have detected ...

Outbursts of luminous blue variable stars from variations in the helium opacity. Nature, 2018; 561 (7724): 498 DOI: 10.1038/s41586-018-0525-0 ...

Gaia also identified within the Milky Way 1,394 variable stars, which change in brightness over set periods of time. Of these, 386 have not been observed in previous studies.

"The brightness change was very, very large, more than 10%, which has not been seen in similar types of stars." Stars usually change brightness by 1-2%, he added, including our own sun. You may like ...

Overall, the atlas contains roughly 7,000 stars to magnitude 6.2, the unaided human eye’s approximate limit from a dark site. The atlas also plots nearly 1,000 double stars, variable stars, and ...

Variable stars play a key role in understanding the Milky Way and the universe. The era of astronomical big data presents new challenges for quick identification of interesting and important variable ...

“The luminous blue variable is a supermassive, unstable star,” said Yan-Fei Jiang, a researcher at UC Santa Barbara’s Kavli Institute for Theoretical Physics (KITP). Unlike our own comparatively ...

On Oct. 22, variable star observer Kerstin Raetz of the Federal German Association for Variable Stars in Germany reported seeing Mira shining at magnitude +2.2 — more than twice as bright as a ...

Young, blue, pulsing stars known as Cepheids are some of the most important stars in the Universe, and we find them almost everywhere: except our galaxy's center. Why?

AI tools are transforming how we observe the world around us — and even the stars beyond. Recently, an international team proved that deep learning techniques and large language models can help ...

For years scientists have known that the apparent brightness of many stars changes over time, however, the kind of variable star seen in this new European Southern Observatory photo of the open ...