Квазари -
це надзвичайно яскраві далекі галактики, що живляться завдяки чорним дірам, розташованим в їхньому центрі.
⚫ a Crateris (a Crt) Alkes The name comes from the Arabic word "JI," which translates to "Cup." In the Al- Ahkām Al-Tabi'iyyah Al-Muwaqqit Calendar, this star was labeled as "Aul al-Batdjna" (Ji Ji awwil albajna), which translates to "First Goblet" in Latin, known as "Prima Crateris." In 2016, the International Astronomical Union (IAU) established the Working Group on Star Names (WGSN) to catalog and standardize star names. On September 12, 2016, the WGSN approved the name "Alkes" for this star, which is now included in the IAU star name catalog. ⚫ J1131-1231 Black Hole with a Quasar in the Crater constellation. Quasars are extremely bright distant galaxies powered by supermassive black holes located at their centers.
⚫ RX J1131-1231 (скорочено RX J1131) — сверхмасивная чорна діра з квазаром в сузір'ї Чаші.
Знаходиться на відстані близько 6 мільярдів світових років від Сонця.
Чорна діра в RX J1131 обертається зі швидкістю понад половину швидкості світла, це свідчить про те, що вона виросла шляхом злиття, а не затягування матеріалу з різних напрямків.
⚫ RX J1131-1231 (abbreviated RX J1131) supermassive black hole with a quasar in the Crater constellation. It's located about 6 billion light-years away from the Sun. The black hole in RX J1131 rotates at over half the speed of light, indicating that it likely grew through mergers rather than accreting material from different directions.
⚫ Crater 2 (Cra 2) - a dwarf spheroidal galaxy, a satellite of the Milky Way. Discovered in January 2016. Crater 2 is one of the largest (in terms of linear dimensions) satellites of the Milky Way, surpassed only by the Large and Small Magellanic Clouds and the dwarf elliptical galaxy in Sagittarius. Despite this, Crater 2 is one of the dimmest galaxies (it's the dimmest known star system in the Universe based on surface brightness).