UGC 9128 is a dwarf irregular galaxy around 6.8–7.8 Mly (2.1–2.4 Mpc) away; it is thought to be in the Local Group, although its membership is not certain. The galaxy has a mass of about (1.3±0.2)×107 M☉, around 100 million stars, and a diameter of around 3300 ly. It is therefore quite faint, and so was only discovered in the 20th century. UGC 9128 is around 2.7 Mly from GR 8, which is its nearest neighbour. UGC 9128 is a starburst galaxy, with the peak of star formation being 20–100 million years ago. It is thought to have both a halo and disc.
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| - UGC 9128 (it)
- UGC 9128 (pl)
- UGC 9128 (en)
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| - UGC 9128 is a dwarf irregular galaxy around 6.8–7.8 Mly (2.1–2.4 Mpc) away; it is thought to be in the Local Group, although its membership is not certain. The galaxy has a mass of about (1.3±0.2)×107 M☉, around 100 million stars, and a diameter of around 3300 ly. It is therefore quite faint, and so was only discovered in the 20th century. UGC 9128 is around 2.7 Mly from GR 8, which is its nearest neighbour. UGC 9128 is a starburst galaxy, with the peak of star formation being 20–100 million years ago. It is thought to have both a halo and disc. (en)
- UGC 9128 è una galassia nana irregolare situata nella costellazione del Boote alla distanza di circa 7,8 milioni di anni luce dalla Terra. Il suo diametro è stimato in circa 3.300 anni luce e conterrebbe circa 100 milioni di stelle Si trova ai confini del Gruppo Locale di cui non farebbe parte, ma sarebbe un membro di un ristretto gruppo di galassie denominato che annovera anche la galassia GR 8 (o UGC 8091). (it)
- UGC 9128 (również PGC 50961 lub DDO 187) – karłowata galaktyka nieregularna znajdująca się w konstelacji Wolarza w odległości około 7,4 milionów lat świetlnych. Galaktyka ta należy do grupy galaktyk M94. Mimo że znajduje się blisko Ziemi, została po raz pierwszy skatalogowana dopiero w 1959 roku przez Sidneya van den Bergha. UGC 9128 zawiera nie więcej niż 100 milionów gwiazd. Pomimo że jest to galaktyka karłowata, zdjęcia wykonane teleskopem Hubble’a zdają się wskazywać, że posiada ona zarówno sferyczne halo złożone ze starszych gwiazd, jak i dysk złożony z młodych gwiazd. (pl)
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| - UGC 9128,DDO187 (en)
- UGC9128 (en)
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| - UGC 9128 is a dwarf irregular galaxy around 6.8–7.8 Mly (2.1–2.4 Mpc) away; it is thought to be in the Local Group, although its membership is not certain. The galaxy has a mass of about (1.3±0.2)×107 M☉, around 100 million stars, and a diameter of around 3300 ly. It is therefore quite faint, and so was only discovered in the 20th century. UGC 9128 is around 2.7 Mly from GR 8, which is its nearest neighbour. UGC 9128 is a starburst galaxy, with the peak of star formation being 20–100 million years ago. It is thought to have both a halo and disc. (en)
- UGC 9128 è una galassia nana irregolare situata nella costellazione del Boote alla distanza di circa 7,8 milioni di anni luce dalla Terra. Il suo diametro è stimato in circa 3.300 anni luce e conterrebbe circa 100 milioni di stelle Si trova ai confini del Gruppo Locale di cui non farebbe parte, ma sarebbe un membro di un ristretto gruppo di galassie denominato che annovera anche la galassia GR 8 (o UGC 8091). (it)
- UGC 9128 (również PGC 50961 lub DDO 187) – karłowata galaktyka nieregularna znajdująca się w konstelacji Wolarza w odległości około 7,4 milionów lat świetlnych. Galaktyka ta należy do grupy galaktyk M94. Mimo że znajduje się blisko Ziemi, została po raz pierwszy skatalogowana dopiero w 1959 roku przez Sidneya van den Bergha. UGC 9128 zawiera nie więcej niż 100 milionów gwiazd. Pomimo że jest to galaktyka karłowata, zdjęcia wykonane teleskopem Hubble’a zdają się wskazywać, że posiada ona zarówno sferyczne halo złożone ze starszych gwiazd, jak i dysk złożony z młodych gwiazd. (pl)
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