Draft:Fornax-7
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Comment: That's enough. Repeatedly resubmitted without fixing the referencing issues. If no additional references exist this topic does not merit its own article at this time. Taking Out The Trash (talk) 19:46, 1 October 2026 (UTC)
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| Fornax-7 | |
|---|---|
 The fornax-7 Dwarf Photographied | |
| Observation data (J2000.0 epoch) | |
| Constellation | Fornax |
| Physical characteristics | |
| Estimated age | ~10 billion years |
Fornax-7 is an ultra-faint stellar system on the constellation Fornax announced on September 13 of 2026, The galaxy was discovered using data from the Euclid Space Telescope; measuring 11.4 parsecs (around 37 light-years) in size, it could be the first known instance of a satellite galaxy orbiting another satellite galaxy. Its stellar population consists entirely of extremely metal-poor stars, with a total mass of 170 solar masses. This galaxy is located 145 kiloparsecs (473,000 light-years) from Earth and lies 1.1 degrees from the dense center of the Fornax dwarf galaxy, raising the question of whether it is in orbit or if this is merely an illusion created by the Euclid telescope.[1]
Nomenclature
[edit]Its name comes from the host galaxy located in the constellation Fornax, and the "-7" indicates that it is the seventh compact stellar object orbiting around Fornax Spheroidal Dwarf Galaxy
Discovery and characteristics
[edit]Fornax-7 was found by The team, led by Teymoor Saifollahi of the Observatory of Strasbourg, serendipitously spotted a tiny, extremely faint stellar system detecting ultra-faint overdensity of ancient stars, the primary detection comes from the Euclid Space Telescope: Euclid Data Release 1 (DR1), Fornax-7 holds only a tiny handful of stars pushing the absolute lower physical limit of stellar systems, his host proximity distance to the Dwarf Host Galaxy is 2.8 kpc (around 9,100 light-years) within the outer halo, incluiding is a probably satelite galaxy of a another satelite galaxy is Fornax-7 is significantly larger on volume than Ursa Major III (UNIONS 1) but its smaller than his Host Galaxy, Fornax-7 contains only roughly 100 to 200 individual stars in total and only directed identified 6 Red Giants
Astronomical nature
[edit]The exact nature of Fornax-7 is still under scientific debate proponents Fornax-7 is an ultra-faint dwarf galaxy that survives the the powerful gravitational tidal forces of the nearby Fornax Dwarf Spheroidal galaxy or remotes Fornax-7 is a open globular cluster with no dark matter located in its outer halo of the Host Galaxy
See also
[edit]- Fornax Dwarf
- Euclid (spacecraft)
- Moonmoon (Also know as "subsatelite" a hipotethical type of natural satellite orbiting another bigger natural satellite as same Fornax-7 but in planets)
References
[edit]- ↑ "Euclid: Data Release 1 (DR1) – Fornax-7, an ultra-faint companion to the Fornax dwarf spheroidal galaxy?". arxiv.org. Retrieved 2026-10-02.
https://arxiv.org/html/2609.14535v1 https://phys.org/news/2026-09-tiny-stellar-satellite.html
Category:Galaxies discovered in 2026 Category:Fornax Category:Open clusters
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