LBN 248

100%  resolution (2.0MB)

Object identification (2.0MB)

150%  crop (0.4MB)

DSLR widefield image

Object data of LBN248

Object type: Emission + reflection nebula
Size: 24'
Magnitude: -
Constellation: Cyg
Distance: 3,200 Ly
Notes: LBN 248 (also named DWB 84)  is an emission and reflection nebula in constellation Cygnus.

Dolidze 6, a dubious candidate for an open star cluster can be found in the centre of the above image. Inside of Dolidze 6 one can find the BD+404124 cluster, a small group of very young stars (age < 0.5 mio years). The brightest members of this small cluster are three Herbig Ae/Be stars:

  • BD+404124
  • V1686 Cyg (LkHA 224)
  • V1318 Cyg (LkHA 225) 

As a result of the intense interstellar extinction most of the stars of the BD+404124 cluster are only visible in infrared light.

Exposure data

Date: 2016-08-25 + 26 + 27 + 30 + 31 + 2016-09-02
Location: Nussbach / Austria (400m)
Telescope: 12" Newtonian telescope (f=1120mm)
Camera: QSI 660wsg-8 with Astrodon filters
Binning: L 1x1 / RGB 1x1
Mount: ASA DDM85
Exposure time: L 65x8min / R 25x8min / G 25x8min / B 25x8min
Exposure time total: 18h 40min