IC 1848 Soul Music

2021-04-06T10:48:34+00:006 April 2021|Narrowband, Nebula, News, NGC Autumn|

Well the Soul Nebula Mosaic anyway. 5 panes in the end. First 4 panes (see below)  should have done it but I suspect platesolving failed and I had to do another pane the next night. APP is brilliant at stitching together and blending in panes – even from different sessions.

Object IDIC 1848 Soul Nebula
DetailsSize 150′ x 75′
Telescope250mm f4.8 Newtonian, MPCC
CameraQHY168C @-15°C
Tri-band filter
Exposure(s)9x300s per pane
darks, flats, bias
ProcessingAPP, Photoshop, Topaz Denoise AI

M52 & Bubble Nebula

2021-01-25T14:45:44+00:0025 January 2021|M31-60, Narrowband, Nebula, News, NGC Autumn, Open Cluster|

Strong moonlight

Object IDM52 and NGC 7635
Mag. 6.9, 10.0
Size 13′, 15’x8′
Telescope250mm f4.8 Newtonian
CameraQHY168C @-15°C
2/20 gain/offset
darks, flats, bias
ProcessingAPP, Photoshop, Topaz DeNoise AI

Rosette Ha mosaic 6 sessions

2020-11-13T12:35:00+00:005 March 2020|Narrowband, Nebula, News, NGC Winter|

Still a work in progress. APP is great for doing these sorts of mosaics.
5000 pixel size reduced to 2000 for this.

Object IDNGC2244/2237
Rosette Nebula
Details6 sessions over Jan – March 2020
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Baader 7nm Ha filter
Exposure(s)Nominally 6 x 15 x 300s
but probably fewer since some will be discarded
ProcessingAPP, Photoshop

Cygnus Wall NGC 700 (Caldwell 20)

2019-09-21T16:27:20+00:0021 September 2019|Caldwell, Narrowband, Nebula, News, NGC Summer|

Part of the North America nebula – the Central America part – seems to be known as the Cygnus Wall. Can only fit a small part of this object in my FOV.

Object IDNGC 7000, C20
DetailsMag. 4
Size: 120′ x 100′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX, Baader filters
Exposure(s)10x300s ea in Ha and OIII
ProcessingAPP, Photoshop
Mapped HOO and moved to the blue end

Wizard Nebula HOO NGC 7380

2020-12-29T15:02:23+00:0013 August 2019|Narrowband, Nebula, News, NGC Summer|

After doing HOYS-CAPS data on a very murky, moonlit night, decided to try narrowband on this.

Object IDNGC 7380
Wizard Nebula
Mag. 7.2, 25′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)10x300s Ha, 5x300s OIII
ProcessingDSS, Nebulosity, Photoshop
Topaz DeNoise AI

Cave Nebula Sh2-155 / Caldwell 9

2019-09-21T16:29:23+00:009 September 2019|Caldwell, Narrowband, Nebula, News, NGC Summer|

Sh2-155 is a diffuse nebula in the constellation Cepheus, within a larger nebula complex containing emission, reflection, and dark nebulosity. It is widely known as the Cave Nebula. Sh2 designation because it’s part of the Sharpless Catalog (1959) of 312 HII regions. About 2400 light years from Earth and a stellar nursery.

Narrowband filters really do cut through the murky, light polluted skies of Edinburgh so well. Obviously false colour, has to be for narrowband, but can’t decide which is the best so two different tone mappings: SII Ha OIII -> RGB and Ha OIII SII

Object IDCave Nebula
Sh2-155 / C9
Mag. 7.7, 50′ x 30′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)10 x 180s each Ha OIII SII 2×2
ProcessingDSS, Nebulosity, Photoshop

NGC 6888 / Caldwell 27 Crescent Nebula SHO

2019-09-21T16:29:35+00:0028 August 2019|Caldwell, Narrowband, Nebula, News, NGC Summer|

A new one for me

Object IDNGC 6888
Crescent Nebula
Mag. 7.4, 18′ x 12′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)7 x 300s each Ha, OIII, SII
ProcessingDSS, Nebulosity, Photoshop
Mapped SII, Ha, OIII -> RGB

B33 Horsehead in narrowband

2019-01-14T16:26:53+00:0014 January 2019|Dark nebula, Narrowband, Nebula, News, NGC Winter|

First real narrowband image. Strange reflections of the primary, secondary and spider in Ha and OIII images, as well as flats.
Mappings were OHS and HOS. SII didn’t add much to either image but object is strong in Ha and OIII.

Object IDB33 in IC343
Telescope250mm f4.8 Newtonian
Guided PHD2
CameraAtik 460EX
Baader Ha, OIII, SII filters
Exposure(s)15x200s 2×2 each filter
15 each of darks, flats, bias
ProcessingNebulosity and Photoshop
Colour mapping: