IC405 Flaming Star Nebula - Auriga

NGC6820 and NGC6823 Emission nebula and Open Cluster in Vulpecula

  1. © Copyright 2014 by Lieven Persoons

General Info


Image Data

Optics : TMB 152 @ f/8
Mount : 10micron GM2000
Camera : SBig STL11000
Exposures : total, 33h30 - HLRGB : 360:760:310:250:330 (1x1 bin)
Filters : Baader HaRGB 2”
Location : Verclause (France)
Date : 20, 25, 26, 27, 28/09/2014 & 1, 2, 17, 18, 22, 25/10/2014
Comments : Data acquired remotely

NGC6820 : emission nebula in Vulpecula, also know as Sh 2-86 or LBN135.
RK 19h 43’ 23” / DEC +23° 16’ 00”
Size: 40‘x30’
NGC6823 : open star cluster in Vulpecula.
RK 19h 43’ 6” / DEC +23° 18’ 00”
Size: 12‘x12‘ / Real diameter: 30,7Lj / Distance: 8802Lj / Rad speed: 2Km/s / Age: 2.000.000 year

NGC 6820 is an emission nebula that surrounds open cluster NGC 6823 in Vulpecula near M27 the Dumbbell Nebula. He has been discovered on 7 august 1864 by the German astronomer Albert Marth. The open cluster NGC6823 was previously discovered on 17 july 1785 by William Herschel.

The most striking feature is the trunk-like pillar of dust and gas protruding from the east side of the nebula towards the open cluster NGC6823 in the west. The center of the open cluster is about two million years old and is predominantly represented by many young, bright blue stars. Outer parts of the cluster intimately involving pillars of emission nebula NGC6820 contain even younger stars. The huge pillars of gas and dust are probably formed when surrounding gas and dust is pushed and eroded away by radiation from nearby stars. Remarkable dark globules of gas and dust are also visible in the nebula, much as is seen in the better known Eagle Nebula in Serpens or the Lagoon Nebula in Sagittarius.


Size :