18-442: Bedin is a surname. Notable people with the surname include: Bedin may also refer to the galaxy Bedin I , a dwarf spheroidal galaxy. Bedin I Bedin I is a dwarf spheroidal galaxy located in the constellation Pavo . It is situated around 28.38 million light-years from Earth, behind the globular cluster NGC 6752 . Bedin I is possibly one of the oldest galaxies known, having formed around 10–13 billion years ago, and
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54-534: A partnership between the Royal Astronomical Society (RAS), who select and peer-review the contents, and Oxford University Press (OUP), who publish and market the journal. Despite its name, MNRAS is no longer monthly, nor does it carry the notices of the RAS. In 2024 MNRAS became a purely gold open access journal. The first issue of MNRAS was published on 9 February 1827 as Monthly Notices of
72-544: Is an isolated dwarf spheroidal galaxy located around 8.7 megaparsecs, or around 28.38 million light-years, from Earth, with similar characteristics to KKR 25 and the Tucana Dwarf Galaxy . It is estimated to be around 840 by 340 parsecs , or 2,700 by 1,100 light-years , in size, which is a fifth the size of the Large Magellanic Cloud . At a metallicity of −1.3, the galaxy's population
90-554: Is made up of metal-poor red giant stars, and its luminosity is roughly a thousand times dimmer than the Milky Way Galaxy , at an absolute magnitude of −9.76. Bedin I is believed to have formed around 10–13 billion years ago with no star formation having occurred since then, making it one of the oldest galaxies known. Bedin I is also possibly the most isolated dwarf galaxy known, located at least 650 kiloparsecs, or 2.12 million light-years, from its nearest neighbor,
108-615: Is one of the most isolated dwarf galaxies known, situated around 2.12 million light-years away from NGC 6744 , its nearest neighbor with which it may be physically associated. As such, it has been deemed by astronomers as a "fossil" from the early universe . It was accidentally discovered by Italian astronomer Luigi Bedin , whose team was studying white dwarfs in NGC 6752 using the Hubble Space Telescope in September 2018;
126-584: Is significantly decreased by NGC 6752, one of the brightest globular clusters in the sky with an apparent magnitude of 5.4. Bedin I was accidentally discovered by Luigi Bedin 's team researching white dwarfs in the cluster in an effort to better determine the cluster's age. The galaxy partially appeared in the field of view during program GO-15096 of the Hubble Space Telescope, led by principal investigator Luigi R. Bedin, which occurred between 7 and 18 September 2018. The program, which saw
144-407: The early universe . Bedin I is located in the constellation Pavo, at a right ascension of 19 10 45.41 and declination of −59° 55′ 04.32″. The galaxy is situated behind a group of unnamed foreground stars within the globular cluster NGC 6752. Bedin I measures around 20 by 8 arcseconds across and has an apparent magnitude of 19.94, although its visibility
162-466: The intermediate spiral galaxy NGC 6744; the Milky Way and Andromeda galaxies are separated by a similar distance. A physical association with NGC 6744 has been speculated however, due to the close angular distance between the galaxies, and their similar physical distances from Earth. Its age, isolation, and lack of interaction with other galaxies has led to the galaxy being deemed a "fossil" from
180-732: The Astronomical Society of London and it has been in continuous publication ever since. It took its current name from the second volume, after the Astronomical Society of London became the Royal Astronomical Society (RAS). Until 1960 it carried the monthly notices of the RAS, at which time these were transferred to the newly established Quarterly Journal of the Royal Astronomical Society (1960–1996) and then to its successor journal Astronomy & Geophysics (since 1997). Until 1965, MNRAS
198-632: The Wide Field Channel (WFC) of the Advanced Camera for Surveys (ACS) pointed at NGC 6752 for 75 exposures lasting 1,270 seconds each, was conducted over 40 orbits; these exposures were able to capture objects with an apparent magnitude above 30. Five of the orbits failed however, due to poor guide star acquisition. The journal Monthly Notices of the Royal Astronomical Society: Letters published
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234-632: The discovery was announced in a paper published in January 2019. Bedin I, pronounced / b ɛ ˈ d iː n / , was named by its discovery team after their leader, Luigi Bedin, who is a researcher at the National Institute for Astrophysics 's observatory in Padua , Italy. He was credited as the galaxy's sole discoverer. Bedin and the team opted to avoid the galaxy being given "an anonymous identification based on its coordinates." Bedin I
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306-895: The team's three-part scientific paper on findings from the program on 31 January 2019, with the first part dedicated to the discovery of Bedin I. A second program of 40 orbits, GO-15491, is currently scheduled for late 2019. Notes Sources Citations Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society ( MNRAS ) is a peer-reviewed scientific journal in astronomy , astrophysics and related fields. It publishes original research in two formats: papers (of any length) and letters (limited to five pages). MNRAS publishes more articles per year than any other astronomy journal. The learned society journal has been in continuous existence since 1827 and became online only in 2020. It operates as
324-421: Was published in-house by the society; from 1965 to 2012 it was published by Blackwell Publishing (later part of Wiley-Blackwell ) on behalf of the RAS. From 2013, MNRAS is published by Oxford University Press (OUP). The journal is no longer monthly, with thirty-six issues a year divided into nine volumes. The Letters section had originally appeared on pink paper in the print edition, but moved online only in
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