EntityQ1045679· pop 29· linked from 468 articles

Q1045679

globular cluster in Dorado

Key facts

Constellation: Dorado
Right ascension: 05 07 34.900
Declination: −67 ° 27 ′ 32.45 ″
Distance: 160,000 ly (50000 pc)
Apparent dimensions v: 3.8 ′
Mass: 5.7 × 10 M ☉
Estimated age: 1.70 ± 0.05 Gyr

via Wikipedia infobox

Wikidata facts

Image: NGC 1846 in LMC.jpg

Show 8 more facts

metallicity: -0.49
Commons category: NGC 1846
time of discovery or invention: 1826-11-06
catalog code: [SL63] 243
apparent magnitude: 12.08
right ascension: 76.895417
declination: -67.4590139
radial velocity: 235.2

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Article

NGC 1846 is a globular cluster containing hundreds of thousands of stars in the outer halo of the Large Magellanic Cloud. It was discovered on November 6, 1826, by James Dunlop and is included in the New General Catalogue. At an aperture of 50 arcseconds, its apparent V-band magnitude is 10.68, but at this wavelength, it has 0.07 magnitudes of interstellar extinction.

NGC 1846 is about 1.7 billion years old. Its estimated mass is 5.7×10 M☉, and its total luminosity is 1.68×10 L☉, leading to a mass-to-luminosity ratio of 0.34 M☉/L☉. All else equal, older star clusters have higher mass-to-luminosity ratios; that is, they have lower luminosities for the same mass.