NGC 6559

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NGC 6559
NGC 6559 imaged with the Danish 1.54 meter telescope at the La Silla Observatory
NGC 6559 imaged with the Danish 1.54 meter telescope at the La Silla Observatory
Constellation Sagittarius
Position
equinox : J2000.0
Right ascension 18h 09m 56.8s
declination -24 ° 06 ′ 23 ″
Further data
Angular expansion

8 × 5 '

history
discovery

John Herschel

Date of discovery

July 31, 1826

Catalog names
NGC  6559 • ESO  521-40 • LBN 28, LBN 007.03-02.26
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NGC 6559 is a nebula located about 5000 light-years away in the constellation Sagittarius .

NGC 6559 includes glowing red emission nebulae , bluish reflection nebulae, and dark clouds . The reddish glowing emission nebulae consist of hydrogen, which emits light on the Hα line . The bluish reflection nebulae are illuminated by young stars. The dark clouds are made up of cold molecules and dust.

The nebula was discovered on July 1, 1826 by the astronomer John Herschel with his 48 cm telescope .

Individual evidence

  1. ↑ NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ SEDS : NGC 6559
  3. ↑ Astronomy Picture of the Day - August 2, 2009
  4. ↑ Seligman

Web links