HD 207129
sunlike star in the constellation Grus
HD 207129 is a G-type main-sequence star about 50.7 light-years away in the constellation of Grus. It has an apparent visual magnitude of approximately 5.6. This is a Sun-like star with the same stellar classification (G2V) and a similar mass. It is roughly the same age as the Sun, but has a lower abundance of elements other than hydrogen and helium, which astronomers refer to as the star's metallicity.
A debris disk has been imaged around this star in visible light using the ACS instrument on the Hubble Space Telescope; it has also been imaged in the infrared (70 μm) using the MIPS instrument on the Spitzer Space Telescope. Based on the ACS image, the disk appears to have a radius of about 163 astronomical units and to be about 30 AU wide, and to be inclined at 60° to the plane of the sky.
Another star, CCDM J21483-4718B (also designated CD−47 13929 or WDS J21483-4718B), of apparent visual magnitude 8.7, has been observed 55 arcseconds away from this star, but based on comparison of proper motions, it is believed to be an optical double and not physically related to its companion. Gaia astrometry shows that this star has a much smaller parallax than HD 207129, confirming that it is an unrelated background star.
The public source identifies “HD 207129” as sunlike star in the constellation Grus. This brief keeps that definition visible, then builds a research path around sunlike, star and constellation.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q5175024. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “HD 207129” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.