NGC 7142 and NGC 7129

2021-12-24T16:41:36+00:0017 December 2021|Nebula, News, NGC Summer, Open Cluster|

Strong Moonlight interfering but an unexpected clear night so all good. Nice sharp open cluster and 7129 is a HOYS object I image a lot.

Below is a less processed image showing the Moon gradients. By processing them out you definitely lose details.

Object IDNGC 7142 Open Cluster
NGC 7129
Cepheus
Details2021-12-16
Telescope250mm f4.8 Newtonian
MPCC
IDAS D3
CameraQHY168C @-15°C
Exposure(s)20 x 280s
darks, flats, bias
CaptureNINA
ProcessingAPP
Photoshop

NGC 7538 Tri-band

2021-12-08T09:22:08+00:0026 November 2021|Nebula, News, NGC Summer, Open Cluster|

Looking for more obscure objects again. This is a young star forming region, contains masers too. Very close to the Bubble Nebula but just across the constellation boundary in Cepheus. In the Perseus arm of the Milky Way.

Object IDNGC 7538
DetailsOpen Cluster and Nebula
Cepheus
2021-11-24
Telescope250mm f4.8 Newtonian
MPCC
Tri-band
CameraQHY168C @-15°C
Exposure(s)28x300s
d,f,b
CaptureNINA
ProcessingAPP, Photoshop

NGC 6939 & NGC 6946 / C12 Fireworks Galaxy

2021-12-08T09:22:36+00:0024 November 2021|Galaxy, News, NGC Summer, Open Cluster|

Cepheus near the border with Cygnus. Bright Moonlight causing some background gradients.

NGC 6939, discovered by William Herschel of course, is quite old for an Open Cluster, between 1 and 1.3 billion years. It also lies about 400 parsecs above the galactic plane, a little unusual for Open Clusters as they are usually within the plane of the galaxy, hence the alternative name of Galactic Clusters.

NGC 6946 (also discovered by William Herschel) is about 25 million light years away and resides in the Virgo Supercluster. It’s known as the Fireworks Galaxy because it seems to be a hive of supernovae; ten have been observed in the 20th and 21st centuries alone. This is about 10 times the rate observed in our own galaxy, even though the Milky Way has twice as many stars. In fact more supernovae have been observed in this galaxy than any other.

During 2009, a bright star within NGC 6946 flared up over several months to become over one million times as bright as the Sun. Shortly thereafter it faded rapidly. Observations with the Hubble Space Telescope suggest that the star did not survive, although there remains some infrared emission from its position. This is thought to come from debris falling onto a black hole that formed when the star died. This potential black hole-forming star is designated N6946-BH1. The progenitor is believed to have been a yellow hypergiant star. Wikipedia

Object IDNGC6939 & NGC 6946 / C12 Fireworks Galaxy
DetailsGalaxy and Open Cluster
Cepheus
2021-11-20
Telescope250mm f4.8 Newtonian
MPCC
Tri-band
CameraQHY168C @-15°C
Exposure(s)25x300s
d,f,b
CaptureNINA
ProcessingAPP, Photoshop

IC5070 Pelican Nebula in narrowband

2021-12-08T09:23:05+00:0024 November 2021|Nebula, News, NGC Summer|

A star forming region I often image for the HOYS project. Bright moonlight but narrowband keeps most of it out of the image.

Object IDIC5070 Pelican Nebula
DetailsEmission nebula
Cygnus
2021-11-20
Telescope250mm f4.8 Newtonian
MPCC
Tri-band
CameraQHY168C @-15°C
Exposure(s)30x300s
d,f,b
CaptureNINA
ProcessingAPP, Photoshop

NGC 7008 Fetus Nebula

2021-12-08T09:24:06+00:0026 October 2021|News, NGC Summer, Planetary Nebula|

A planetary nebula with a diameter of 1 ly and about 200 ly away (Wiki says 2800 but parallax says 15.7mas ~200ly). Another William Herschel discovery. You can see the central star is still quite bright but is now a cooler white dwarf. There’s a nice double star system just top right of the nebula, although I suspect from their parallaxes (2.13 mas and 1.97 mas) it’s not a binary system. The nebula is much closer with a parallax of 15.7 so not associated with the double star.

Object IDNGC 7008
DetailsPlanetary Nebula
Cygnus
Mag. 12
Size 1.4’x1.1′
Telescope250mm f4.8 Newtonian
MPCC
IDAS D3
CameraQHY168C @-15°C
Exposure(s)7x180s
d,f,b
CaptureNINA
ProcessingAPP, Photoshop

Sh2-155, C9 Cave Nebula

2021-09-03T13:14:24+00:003 September 2021|Narrowband, Nebula, News, NGC Summer|

Horizontal banding sorted. Camera into USB 2 not 3, and not through a USB hub.
Not very happy with the processing.

Object IDSh2-155 / C9  Cave Nebula
Details2021-09-02
Telescope250mm f4.8 Newtonian
Tri-band filter
CameraQHY168C @-15°C
Exposure(s)20x300s
darks, flats, dark-flats
CaptureNINA
ProcessingAPP, Photoshop

IC 1396 Elephant Trunk Nebula

2021-08-15T17:23:10+00:0015 August 2021|Narrowband, Nebula, News, NGC Summer|

One I often observe for HOYS but purely for imaging this time. Some horizontal banding noise from somewhere – to be resolved.

Object IDIC 1396, Elephant Trunk Nebula
Details2021-08-14
Telescope250mm f4.8 Newtonian
Tri-band filter
CameraQHY168C @-15°C
Exposure(s)15x300s
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

2021-03-02T14:02:08+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

M92 RGB

2019-12-05T16:06:47+00:005 December 2019|Globular Cluster, News, NGC Summer|

Because sky conditions were very poor I went back to globulars as nebulosity can easily disappear in LP and fog. APP got rid of the massive gradients and LP quite well I think.

Object IDM92 (NGC6341)
DetailsSize 14′, Mag. 6.3
Hercules
Telescope250mm f4.8 Newtonian
CameraAtik 460EX -15C
Exposure(s)10x180s ea RGB 1×1
darks, flats, bias
CaptureAPT
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
-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

Iris Nebula NGC 7023 / Caldwell 4

2019-08-29T12:59:19+00:0029 August 2019|Caldwell, Nebula, News, NGC Summer|

Been meaning to do this one for ages. Not easy because the background gas and dust can be easily lost in the light pollution and noise.

“The Iris Nebula, also known as NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +6.8 star, SAO 19158.”
Wikipedia

Object IDIris Nebula
NGC 7023 / C4
DetailsCepheus
Mag. 6.8, 18′ x 18′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)10 x 180s each RGB 1×1
CaptureAPT
ProcessingNebulosity, Photoshop

Cocoon nebula IC5146 / Caldwell 19 RGB

2019-08-29T12:55:55+00:0028 August 2019|Caldwell, Nebula, News, NGC Summer|

“IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula.”
Wikipedia

Object IDCocoon Nebula
IC 5146 / C19
DetailsCygnus
Mag. 7.2, 12′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)9 or 10 x 180s each RGB 1×1
CaptureAPT
ProcessingNebulosity, 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
DetailsCygnus
Mag. 7.4, 18′ x 12′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)7 x 300s each Ha, OIII, SII
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop
Mapped SII, Ha, OIII -> RGB

Pelican Nebula TR IC 5070 HOYS-CAPS data

2019-09-15T22:21:49+00:0014 September 2019|HOYS, Nebula, News, NGC Summer|

A by-product of doing HOYS-CAPS data for V1490Cyg in Tri-colour R, decided to make a stacked image out of it. 30 subs over 6 months.

At least 4 Herbig-Haro objects imaged in this and marked out in the greyscale version.

Object IDIC 5070
Pelican Nebula
DetailsCygnus
Mag. 8, 60’x50′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)30x180s R
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop

“The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.”

“Herbig–Haro (HH) objects are bright patches of nebulosity associated with newborn stars. They are formed when narrow jets of partially ionized gas ejected by said stars collide with nearby clouds of gas and dust at speeds of several hundred kilometers per second. Herbig–Haro objects are ubiquitous in star-forming regions, and several are often seen around a single star, aligned with its rotational axis. Most of them lie within about one parsec (3.26 light-years) of the source, although some have been observed several parsecs away. HH objects are transient phenomena that last around a few tens of thousands of years. They can change visibly over quite short timescales of a few years as they move rapidly away from their parent star into the gas clouds of interstellar space (the interstellar medium or ISM). Hubble Space Telescope observations have revealed the complex evolution of HH objects over the period of a few years, as parts of the nebula fade while others brighten as they collide with the clumpy material of the interstellar medium.”

Wikipedia

Pelican Nebula HaRGB IC 5070

2019-08-16T22:39:18+00:0013 August 2019|HOYS, Nebula, News, NGC Summer|

A by-product of doing HOYS-CAPS data for V1490Cyg in HaRGB, decided to make a colour image out of it even though only 3 subs for each filter.

Object IDIC 5070
Pelican Nebula
DetailsCygnus
Mag. 8, 60’x50′
Telescope250mm f4.8 Newtonian
CameraAtik 460EX
Exposure(s)3x180s RGB, 3x300s Ha
CaptureAPT
ProcessingDSS, Nebulosity, Photoshop