NGC 6826

Database links to NGC 6826

Planetary Nebula NGC 6826
Photo from the Hubble Space Telescope
AladinLite
Constellation	swan
Position equinox : J2000.0
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).

Individual evidence

1. ↑ NASA / IPAC EXTRAGALACTIC DATABASE
2. ↑ ^{a b} SEDS: NGC 6826
3. ↑ ^{a b} SIMBAD
4. ↑ Seligman