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Cone Nebula and Christmas Tree cluster

2020-12-22T20:50:01+00:0022 December 2020|Nebula, News, NGC Winter, Open Cluster|

Problems with ice of dew somewhere, had to heavily crop this to remove rings and artefacts. Strange colouring also part of the problem. Not great!

Object IDNGC2264
Details2020-12-21
Telescope250mm f4.8 Newtonian
MPCC
CameraQHY168C @15°C
IDAS P2
Exposure(s)30x180s
darks, flats, dark-flats
CaptureNINA
ProcessingAPP, Photoshop, Topaz DeNoise AI

M42 & NGC 1977 mosaic Dec 2020

2020-12-22T20:50:31+00:0020 December 2020|M31-60, Nebula, News, NGC Winter|

The annual M42 this year is a mosaic with the Running Man. APP dealt with the gradients really well after messing with the Normalisation and Integration parameters.

Object IDM42, NGC 1977
Details2020-12-19
Telescope250mm f4. Newtonian
MPCC
CameraQHY168c @-15°C
IDAS P2
Exposure(s)10x180s each pane, 2/10
Darks, flats, dark-flats
CaptureNINA
ProcessingAPP, Photoshop, Topaz DeNoise AI

Reminder:

Mosaics in APP – defaults unless otherwise stated
1. Load – all as normal – you don’t need to use separate sessions for each frame if you did it all at the same time
2. Calibrate as normal
3. Analyse stars – I needed to increase from 500 or it wouldn’t work – went 1400 – might have been the subject but I suspect it helps to stitch the mosaic together
4. Register – Registration mode – mosaic, use dynamic distortion model, uncheck same camera and optics (will be suggested if you don’t)
Scale stop = 1 (for a 10% mosaic overlap)
5. Normalize – Mode – advanced – neutralize background
LNC degree – 2nd degree, iterations 3
6. Integrate – Enable MBB – 10% because I did 10% overlap in the mosaic
INTEGRATE – and if you’re lucky it all works

NGC 1977 test image

2020-12-24T12:08:48+00:0017 December 2020|Nebula, News, NGC Winter|

Testing out and configuring replacement laptop after old one got washed away in observatory leak! Took a few frames of the Running Man nebula. Topaz is great for removing noise in images with too few frames. This only had 4 frames and once stretched was very noisy. Looks great after Topaz-ing.

Object IDNGC1977 Running Man Nebula
Orion
Details2020-12-16 23:18UT
Poor seeing, guiding 0.8″ and a little windy
Telescope250mm f4.8 Newtonian
MPCC, IDAS P2
CameraQHY 168C @15°C
Gain/offset 2/20
Exposure(s)5x180s 1×1
darks, bias only – so a little vignetting, removed in processing
CaptureN.I.N.A.
PHD2
ProcessingSiriL, Photoshop, Topaz DeNoise AI

Flaming Star Nebula

2020-11-05T08:31:42+00:0028 October 2020|Nebula, News, NGC Autumn|

An unexpected clear night when forecast said not. Poor transparency and needed longer exposures than the sky conditions could take.

Object IDFlaming Star Nebula IC 405
Auriga
Details2020-10-28 20:29-
Telescope250mm f4.8 Newtonian
MPCC
CameraQHY168C @-10°C
2/20 gain/offset
IDAS P2
Exposure(s)30x180s
darks, flats, bias
CaptureNINA
ProcessingAPP, Photoshop

Cygnus Wall in NGC 7000

2020-11-05T08:32:05+00:0027 October 2020|Nebula, News, NGC Summer|

Last one was narrowband, this attempt is full colour with the CMOS camera. Also first time using NINA for capture. Looks a great tool.
Replaced image after trying demo of Topaz de-noise – excellent.

Object IDCygnus Wall
Tail of NGC 7000 North America Nebula
Details2020-10-24 20:38-
Telescope250mm f4.8 Newtonian
MPCC
CameraQHY168C @-10°C
2/20 gain/offset
IDAS P2
Exposure(s)25x180s
darks, flats, bias
CaptureNINA
ProcessingAPP, Photoshop, Topaz De-noise

Iris Nebula NGC 7023 / C4

2020-11-05T08:32:50+00:0023 September 2020|Caldwell, Nebula, News, NGC Summer|

Bringing out the all the dusty, dark material leaves me with a horrible background.

Object IDIris Nebula
NGC 7023 / C4
Details2020-09-19
Mag. 6.8
Telescope250mm f4.8 Newtonian, MPCC
CameraQHY168C @15°C
2/20 gain/offset
IDAS P2
Exposure(s)28x180s 10/50
darks, flats, bias
CaptureAPT
ProcessingAPP, Photoshop

The Iris Nebula is a bright reflection nebula in the constellation Cepheus. The designation NGC 7023 refers to the open cluster within the larger reflection nebula designated LBN 487. The nebula, which shines at magnitude +6.8, is illuminated by a magnitude +7.4 star designated SAO 19158.
Wikipedia

New QHY168c camera test on Eastern Veil

2020-09-17T08:01:27+00:0025 August 2020|Nebula, News, NGC Summer|

New camera testing. Different way of working with Gain and Offset needing to be chosen and probably using more shorter exposures than the CCD.
32Mb lights instead of 10Mb for the CCD means much longer processing in APP. Couldn’t use the flats as I moved the camera between flats and lights.

Object IDNGC6992 Eastern Veil Nebula
DetailsMag. 7, Size 3°
Telescope250mm f4.8 OO Newtonian
MPCC
CameraQHY168c @-15°C
Gain/Offset: 10/50 (unity)
No filters
Exposure(s)30x60s lights
20x darks
CaptureAPT
ProcessingAPP, Photoshop

IC1396 Elephant’s Trunk Nebula

2020-08-10T10:25:37+00:0010 August 2020|Nebula, News, NGC Summer|

Imaged areas around this a lot for HOYs but never this actual part. First time back using the MPCC without the LP filter this time to avoid internal reflections. Stars are better at 3 corners but top right still off – probably focuser alignment.

Object IDIC1396
Elephant’s Trunk
Details2020-08-08
Telescope250mm f4.8 Newtonian, MPCC
CameraAtik 460EX @-15°C
Baader Ha, OIII filters
Exposure(s)10x300s each Ha, OIII
Darks, flats, bias
CaptureAPT
ProcessingAPP, Photoshop

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
Monoceros
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
CaptureAPT
ProcessingAPP, Photoshop

Heart of the Rosette NGC2244

2020-02-06T17:57:40+00:006 February 2020|HOYS, Nebula, News|

Data taken for the HOYS project of NGC2244 in Hydrogen-Alpha. This was taken in strong moonlight but Ha images are much less affected. RGB was a non-starter with the Moon so strong.

Object IDNGC2244 Rosette Nebula HOYS 008
Details2020-02-04
22:48:47 – 23:36:01
Telescope250mm f4.8 Newtonian
CameraAtik 460EX @15C
Exposure(s)10x300s Baader Ha
bin 1×1, darks, flats, bias
CaptureAPT
ProcessingNebulosity, Photoshop

IC349 Barnard’s Merope Nebula

2020-01-07T17:25:55+00:007 January 2020|Nebula, News, NGC Winter|

Thought I’d try and get the Merope Nebula as the whole Pleiades don’t fit in my FOV. But saw a flaw beneath Merope which turned out to be another nebula.

Object IDIC349 Barnard’s Merope Nebula
DetailsSize 0.5′, Mag. 13
Taurus
Telescope250mm f4.8 Newtonian
CameraAtik 460EX -15C
Exposure(s)3x180s ea RGB 1×1
darks, flats, bias
CaptureAPT
ProcessingAPP, Photoshop

NGC 2024 Flame Nebula RGB

2019-12-05T16:10:37+00:005 December 2019|Nebula, News, NGC Winter|

Wasn’t expecting it to be clear so this is a bonus. Only managed 5 of each colour though so quite noisy and Alnitak overpowers eveything.

Object IDNGC 2024 Flame Nebula
DetailsSize 30’x30′, Mag. 10
Orion
Telescope250mm f4.8 Newtonian
CameraAtik 460EX -15C
Exposure(s)5x180s ea RGB 1×1
darks, flats, bias
CaptureAPT
ProcessingAPP, Photoshop

Fish head nebula (IC1795)

2019-12-05T16:01:34+00:005 December 2019|Nebula, News, NGC Autumn|

This is a bit of a weird looking one! Stars to the left aren’t good shapes – probably combination of optical alignment, focus and collimation. Stars are over-processed too – should have been so much better.

Object IDIC1695 Fish head nebula (part of the Heart nebula)
DetailsSize 12’x12′
Cassiopeia
Telescope250mm f4.8 Newtonian
CameraAtik 460EX -15C
Exposure(s)20x300s ea Ha, OIII 2×2
darks, flats, bias
CaptureAPT
ProcessingAPP, Photoshop
Processed SHO with synthetic SII

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
-15C
Exposure(s)10x300s ea in Ha and OIII
CaptureAPT
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
DetailsCepheus
Mag. 7.2, 25′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)10x300s Ha, 5x300s OIII
CaptureAPT
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
DetailsCepheus
Mag. 7.7, 50′ x 30′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)10 x 180s each Ha OIII SII 2×2
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop