NGC 6826
Planetary Nebula NGC 6826 |
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Photo from the Hubble Space Telescope | |
AladinLite | |
Constellation | swan |
Position equinox : J2000.0 |
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Right ascension | 19h 44m 48.1s |
declination | + 50 ° 31 ′ 30 ″ |
Appearance | |
Apparent brightness (visual) | 8.8 likes |
Apparent brightness (B-band) | 9.8 likes |
Angular expansion | 0.6 ′ × 0.6 ′ |
Central star | |
designation | HD 186924 |
Physical data | |
Radial velocity | −6.2 km / s |
distance | 2200 ly |
history | |
discovery | William Herschel |
Date of discovery | September 6, 1793 |
Catalog names | |
NGC 6826 • PK 83 + 12.1 • GC 4514 • H IV 73 • h 2050 • CS = 10.4 |
NGC 6826 is a planetary nebula in the constellation Swan , which is 2200 light years from Earth . The central star of NGC 6826 is one of the brightest known stars in a planetary nebula.
The object was discovered on September 6, 1793 by the German-British astronomer Wilhelm Herschel .
Blinking effect
When observing this planetary nebula with a telescope, it appears to blink. This effect has earned it the nickname Blinking Planetary . But the fog itself does not blink. The blinking is caused by our eyes. If you look directly at the central star, it blends in the nebula. If you look past it, however, the fog reappears.
Web links
- Hubble Space Telescope
- Planetary Nebula NGC6826 (Blinking Planetary)
- GoBlack
- Planetary Nebula - NGC 6826
- NGC 6826: The Blinking Eye - Astronomy Picture of the Day from December 19, 1997 (English).