Nebulas in true-color

Find here some pictures of nebulas taken in natural colors. Most of them are RGB shots, so they should be „true color“. Sometimes a portion of „narrowband light“ has been added in order to improve the scene. I aimed always to obtain a realistic color impression of the photo.

Object: The head of the Dark Shark LDN 1235 in Cepheus.  Borgfeld; September 13th, 15th, 17th and 20th, 2020.
Scope: 10″ Newton at f/
2.8
Camera: Atik 490EXm, RGB 53/56/59 x 2 min, L 163 x 2 min, 11 h 42 min at all
Mount: Avalon Linear
Guiding: off-axis, Lodestar, PHD-Guiding
Processing: SQM Pro, PI
Remark: Scale is 1.01 arc sec / pix, north is up. This dark nebula is accompanied by the reflection nebulas vdB 149 and vdB 150 which occur blue. My investigations revealed that the distance of the Dark Shark is sometimes listed at 650 Lj while the reflection nebulas are listed at 1000 Lj.

Object: IC 5076 (vdB 137, LBN 394, V2140 Cyg, …) is a reflection nebula in the constellation Cygnus. Borgfeld; July 16th+20th, 2020
Scope: 10″ Newton at f/
2.8
Camera: Atik 490EXm, RGB  10 x 4 min each,L 29 x 4 min, 4 h at all
Mount: Avalon Linear
Guiding: off-axis, Lodestar, PHD-Guiding
Processing: SQM Pro, PI
Remark: Scale is 1.01 arc sec / pix, north is up. Located about 2° north of the North America Nebula. The nebula is linked to the star HD 199478, a blue supergiant of spectral class B8Iae with strong emission lines. Its apparent magnitude is 5.7, and sometimes being reported as a pulsating variable (V2140 Cygni) with an amplitude of 0.1 magnitudes. Distance is estimated to 1750 parsecs.

Object: Sh2-63 in Sagittarius, La Palma, Athos, 2018, Sept. 7th and 8th
Scope: Pentax SDP125 at f/6.4
Camera: Atik 383 L+, RGB (2×2): 11 x 4 min, L: 30 x 8 min, at all: 6h 12m
Mount: 10Micron GM2000
Guiding: –
Processing: SQM Pro, PI, PS
Remark: Found this 700 ly away nebula accidently in a star chart near to Barnards Galaxy. The picture processing never satisfied my. Finally I got my lesson that sometimes less is more. So here only a slightly processed result is shown. Scale is 1.38 arc sec / pix, north up.

Object: The Tulip Nebula or Sh2-101 in Cygnus. Borgfeld; Nov 2018 and July 2019
Scope: SW Esprit 100 ED with Riccardi f/4.1
Camera: Atik 383, O: 7h 40m, H: 5h 40m, LRGB: 8×2m each, sum: 14h 24m
Mount: Avalon Linear
Guiding: ASI 290MM, 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: Scale is 2.7 arc sec / pix, north is up.

Object: The currently most active region of star formation in the Perseus molecular cloud: NGC 1333. Borgfeld;  Oct 2019 29th and 30th
Scope: SW Esprit 100 ED with SW Flattener f/5.5
Camera: Atik 490EXm, LRGB 3.3 h / 3 x 3 h
Mount: Avalon Linear
Guiding: ASI 290MM, 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: Scale is 1.38 arc sec / pix, north is up.

Object: Cocoon Nebula in Cygnus, Borgfeld; 7 nights Oct 2019 and Aug  2019
Scope: SW Esprit 100 ED with SW Flattener f/5.5
Camera: Atik 490EXm, 28h LRGB and 6h Ha (3nm)
Mount: Avalon Linear
Guiding: ASI 290MM, 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: Scale is 1.38 arc sec / pix, north is up. Mainly done in order to set-up an example for my BoHeTa presentation. Not really a true-color picture, but almost…

Object: Ghost Nebula in Cepheus, vdB 141 or Sh2-136, Borgfeld; Aug 24th, 30th; Sept 5th, 10th; 2019
Scope: SW Esprit 100 ED with Riccardi f/4.1
Camera: Atik 490EXm, LRGB 12h 28m
Mount: Avalon Linear
Guiding: ASI 290MM, 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: A try of a longer RGB shot from my garden at medium light pollution. Scale is 1.83 arc sec / pix, north of the large picture is up. The icon is south up. Find here some more information in german.

Object: Lower’s Nebula Sh2-261, Borgfeld, 3 nights, Oct.  and Nov. 2018
Scope: SW Esprit 100 ED with SW Flattener f/5.5
Camera: Atik 490EXm,  LRGB 6h 26m
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: Erroneously I took the RGB frames with my 383 camera at 415mm. The combination in PI did not make any real trouble. The underlying L frames have been taken with the 490 and a CLS filter.

Object: Cave Nebula, Borgfeld, 2018, Oct. 11th and 13th
Scope: SW Esprit 100 ED with Riccardi f/4.1
Camera: Atik 490EXm,  L(CLS)RGB 12h 56m
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: Cave Nebula or Sh2-155, the blue reflection nebula VdB 155 and the blob  near the bottom a Herbig Haro Object (HH 168).

Object: NGC 7822, Borgfeld, 2018, Oct. 10th
Scope: SW Esprit 100 ED with Riccardi f/4.1
Camera: Canon EOS 5Da MkII, CLS, ISO800, 42 x 4 min, flats+bias
Mount: Avalon Linear
Guiding: ASI 290MM 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: Almost the complete DSLR chip used. A significant crop at the left and right side, only.

Object: M17, La Palma, Athos, 2018, Sept. 5th and 6th
Scope: Pentax SDP125 at f/6.4
Camera: Atik 383 L+, 21×4m LRGB, 5h 36m at all
Mount: 10Micron GM2000
Guiding: –
Processing: SQM Pro, PI, PS
Remark: The Omega Nebula shot during two nights. I was quite surprised how bright the center of the nebuala was. I performed a bit HDRMultiscale processing in order to cope with that issue.
Find here some more information in german.

Object: Veil, 20./21.05.2018, Borgfeld
Scope: SW Esprit 100 ED with Riccardi f/4.1
Camera: Canon EOS 5Da MkII, CLS, ISO800, 32×5m + 18×5m, flats+bias
Mount: Avalon Linear
Guiding: ASI 290MM 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: A full view of the famous SNR.
Remark: North is up. The pic shows an area of 3.3 deg x 3.3 deg. Finally I was able to catch almost the whole nebula in one photo. Presumably my last shot awaiting  the white nights of northern Germany.

Object: Jellyfish Nebula IC443, 26.01.2017, Borgfeld
Scope: SW Esprit 100 ED with SW Flattener f/5.5
Camera: Canon EOS 5Da MkII, CLS, ISO800, 58×5m, flats+bias
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Remark: IC 443 is  a SNR in Gemini (right in this image). The two bright  stars are Mu Geminorum (left) and Eta Geminorum (right). Distance of this region approx. 5000 ly.
Remark: North is up (PW=178°).

Object: Horse Head Nebula, IC434, 04./05.01.2017, Borgfeld
Scope:  SW Esprit 100 ED with SW Flattener f/5.5
Camera: Canon EOS 5Da MkII, CLS, ISO800, 45×5m, flats+bias
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope, PHD2
Processing: SQM Pro, PI, PS
Objektbeschreibung: A very famous region in Orion.
Remark: North left.

Object: IC 405 and Flaming Star IC 410, 29.12.2016, Borgfeld
Scope:  SW Esprit 100 ED with SW Flattener f/5.5
Camera: Canon EOS 5Da MkII,CLS, ISO800, 40×5m, flats+bias
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Description: The pairing of the emission nebulae of IC 405
and IC 410 in the winter constellation Auriga.

Object: Heart Nebula IC 1805; 29.12.2016, Borgfeld
Scope:  SW Esprit 100 ED with SW Flattener f/5.5
Camera: Canon EOS 5Da MkII, CLS; 40×5m, flats+bias
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Description: Bright H II nebula in Cassiopeia.

Object: Embryo Nebula IC 1848; 29.11. and 02.12.2016, Borgfeld
Scope:  SW Esprit 100 ED with  Riccardi f/4.1
Camera: Atik 383 L+, L: 21×4m, RGB: 17×4m, Ha: 7×20m
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope,PHD-Guiding
Processing: SQM Pro, PI, PS
Description: Bright nebula in the Perseus Arm of our Galaxy.
Here with H-Alpha improvement.

Object: Dark nebulas in Cepheus, 09.09.2016, Borgfeld
Scope: SW Esprit 100 ED with  Riccardi f/4.1
Camera: Atik 383 L+, L: 38 x 8 min, RGB: 12/11/11 x 8 min
Mount: Avalon Linear
Guiding: Lodestar 60/240 Finderscope, PHD-Guiding
Processing: SQM Pro, PI, PS
Description:  Mouseover

Object: Iris Nebula NGC 7023,10.10.2015, Wümmewiesen
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Atik 383 L+, L: 12×8m, RGB: 18×4m
Mount: Avalon Linear
Guding: Lodestar 60/240 Finderscope, PHD-Guiding
Aquisition / Processing: SQM Pro, PI, PS
Description: NGC 7023 is a bright reflection nebula in Cepeheus.

Object: Jellyfish, IC 443, 04.02.2014, Borgfeld
Scope: Canon EF-L 200mm, at f/4.0
Camera: Canon EOS 350Da, CLS, ISO800, 48 x 2 min, int. darks
Mount: Vixen GP-D2
Guiding: Lodestar with 135mm Lens and 3x Barlow, PHD-Guiding
Processing: DSS, StarTools
Description: IC 443 is a Galactic supernova remnant in the constellation Gemini.


Objekt: IC 1795, 25.11.2013, Borgfeld
Scope: TS 90/600 Triplett, TS 2″ Flattener 119mm
Camera: Atik 383 L+, L: 14×8m , RGB: 6×4m 2x2bin
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens and 3x Barlow, PHD-Guiding
Processing: MaximDL,Fitswork, PS
Description: IC 1795 is a bright nebula attached to the right
side of IC 1805.

Objekt: Cocoon, IC 5146, 03.08.2013, Borgfeld
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Atik 383 L+, L: 21×10m, RGB: 10×4m
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens and 3x Barlow und PHD-Guidin,
Processing: SQM Pro, Maxim DL,  Fitswork, Startools
Description: IC 5146 is a reflection and emission nebula in Cygnus.

Object: Rosetta, NGC 2237, 23.11.2012, Borgfeld
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Canon EOS 350Da, CLS, ISO800, 13 darks, 14 bias, 15 flats.
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens and 3x Barlow, PHD-Guiding
Processing: DSLR-Focus, APT-Tools, DSS, Fitswork, Photoplus.
Description: The Rosette Nebula is a large H II region located in Monoceros.

Object: Eagle Nebula, M16, 27.07.2012, Hexenberg
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Canon EOS 350Da, CLS, ISO800, 5 x 10 min, internal darks, 10 bias, no flats.
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens and 2,5x Barlow, PHD-Guiding.
Processing: DSLR-Focus, APT-Tools, DSS, Fitswork, Photoplus.
Description: The nebula contains several active star-forming gas and dust regions.

Object: Southern Veil, NGC 6995, 26.07.2012, Borgfeld
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Canon EOS 350Da, CLS, ISO800, 10 x 10 min, darks, 10 bias, 10 flats.
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens and 2,5x Barlow und PHD-Guiding.
Processing: DSLR-Focus, APT-Tools, Fitswork, Photoplus
Description: The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus

Object: Northern Veil, NGC 6960, 24.07.2012, Borgfeld
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Canon EOS 350Da, CLS, ISO800. 7 x 10 min, internal darks, 10 bias, 10 flats
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens and 2,5x Barlow, PHD-Guiding
Processing: DSLR-Focus, APT-Tools, Fitswork, Photoplus.
Description:The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

Object: Butterfly, IC 1318, 08.07.2012, Borgfeld
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Canon EOS 350Da,CLS, ISO800, 32 x 4 min, 34 darks, 19 bias, 19 flats.
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens and 2.5x Barlow, PHD-Guiding
Processing: DSLR-Focus, APT-Tools, DSS, IRIS
Description: The Sadr region is a diffuse emission nebula surrounding
Sadr or Gamma Cygni

Object: Pelican, IC 5070, 26.05.2012, Borgfeld
Scope: TS 90/600 Triplett, TS 2″ Flattener
Camera: Canon EOS 350Da,CLS, ISO800, 34 x 4 min, 20 darks, 13 bias, 11 flats.
Mount: Vixen GP-2
Guiding: Lodestar with 135mm Lens, 2.5x Barlow and PHD-Guiding
Processing: IRIS, Fitswork
Description: The Pelican Nebula is an HII region associated with the North America Nebula.