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The Sun is the brightest star as viewed from Earth, at −26.78 mag. The second brightest is Sirius at −1.46 mag. For comparison, the brightest non-stellar objects in the Solar System have maximum brightnesses of: the Moon −12.7 mag [1] Venus −4.92 mag; Jupiter −2.94 mag; Mars −2.94 mag; Mercury −2.48 mag; Saturn −0.55 mag [2]
The first list shows a few of the known stars with an estimated luminosity of 1 million L ☉ or greater, including the stars in open cluster, OB association and H II region. The majority of stars thought to be more than 1 million L ☉ are shown, but the list is incomplete. The second list gives some notable stars for the purpose of comparison.
List of brightest stars: Brightest star in a transient event Progenitor of SN 1006: 1006 m= −7.5 This was a supernova, and its remnant (SNR) is catalogued as PKS 1459-41 [NB 5] [NB 6] [NB 1] [29] Dimmest star from the Earth UDF 2457: m= 25 [NB 5] [NB 6] Most luminous star LGGS J004246.86+413336.4: 2022 L= 19,953,000 L Sun [30] List of most ...
The open cluster Messier 6 in the constellation Scorpius is also known as the Butterfly Cluster or NGC 6405. This is a list of open clusters located in the Milky Way.An open cluster is an association of up to a few thousand stars that all formed from the same giant molecular cloud.
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Trumpler 16 (Tr 16) is a massive open cluster that is home to some of the most luminous stars in the Milky Way galaxy. It is situated within the Carina Nebula complex in the Carina–Sagittarius Arm, located approximately 9,270 ly (2,842 pc) from Earth. [1] The cluster has one star visible to the naked eye from the tropics southward, Eta Carinae.
The tidal radius of the cluster is 40.1 ly (12.3 pc) and it has a combined mass of about 735 times the mass of the Sun. [3] The age of the cluster is around 200 [2] million years while the brightest member star is of magnitude 5.6. In terms of composition, the cluster contains a similar abundance of elements other than hydrogen and helium as ...
NGC 5999 is an open cluster in the constellation Norma. Its brightest star is HIP 78355 . [ 3 ] It is 5310 light-years distant and thought to be around 400 million years old.