NGC 419
Sign in to saveglobular cluster located in the constellation Tucana
Key facts
- Right ascension
- 01 08 17.2
- Declination
- −72 ° 53 ′ 01 ″
- Distance
- 186,000 ± 13,000 ly (57,000 ± 4,000 pc )
- Apparent dimensions v
- 2.8 ′ × 2.8 ′
- Mass
- 6.4 × 10 M ☉
- Estimated age
- 1.45 ± 0.05 Gyr
- Other designations
- Kron 58, Lindsay 85, ESO 29-33, LI-SMC 182, OGLE-CL SMC 159, RZ2005 174.
- Constellation
- Tucana
via Wikipedia infobox
Wikidata facts
- Instance of
- galaxy
- Part of
- Small Magellanic Cloud
- Constellation
- Tucana
- Image
- NGC419-hst-R814GB555.jpg
Show 8 more facts
- Commons category
- NGC 419
- catalog code
- OGLE-CL SMC 159
- discoverer or inventor
- James Dunlop
- time of discovery or invention
- 1826-09-02
- apparent magnitude
- 9.34
- right ascension
- 17.074125
- epoch
- J2000.0
- declination
- -72.884111
via Wikidata · CC0
~1 min read
Encyclopedic overview
NGC 419 is a globular cluster located approximately 57,000 pc (190,000 ly) from Earth in the constellation Tucana. It was discovered on September 2, 1826, by James Dunlop. It was described by Dreyer as "pretty large, pretty bright, round, gradually brighter middle". At a distance of about 186,000 light years (57,000 parsecs), it is located within the Small Magellanic Cloud. At an aperture of 50 arcseconds, its apparent V-band magnitude is 10.30, but at this wavelength, it has 0.15 magnitudes of interstellar extinction.
NGC 419 is about 1.45 billion years old. Its estimated mass is 6.4×10 M☉, and its total luminosity is 3.49×10 L☉, leading to a mass-to-luminosity ratio of 0.18 M☉/L☉. All else equal, older star clusters have higher mass-to-luminosity ratios; that is, they have lower luminosities for the same mass.
Excerpted from Wikipedia’s “NGC 419” article, available under the CC BY-SA 4.0 licence.