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Iris Nebula NGC 7023 / Caldwell 4

By |2019-08-29T12:59:19+00:0029 August 2019|Categories: 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 ID Iris Nebula
NGC 7023 / C4
Details Cepheus
Mag. 6.8, 18′ x 18′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX
Exposure(s) 10 x 180s each RGB 1×1
Capture APT
Processing Nebulosity, Photoshop
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Cocoon nebula IC5146 / Caldwell 19 RGB

By |2019-08-29T12:55:55+00:0028 August 2019|Categories: 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 ID Cocoon Nebula
IC 5146 / C19
Details Cygnus
Mag. 7.2, 12′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX
Exposure(s) 9 or 10 x 180s each RGB 1×1
Capture APT
Processing Nebulosity, Photoshop
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NGC 6888 / Caldwell 27 Crescent Nebula SHO

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

A new one for me

Object ID NGC 6888
Crescent Nebula
Details Cygnus
Mag. 7.4, 18′ x 12′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX
Exposure(s) 7 x 300s each Ha, OIII, SII
Capture APT
Processing DSS, Nebulosity, Photoshop
Mapped SII, Ha, OIII -> RGB
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Pelican Nebula TR IC 5070 HOYS-CAPS data

By |2019-09-15T22:21:49+00:0014 September 2019|Categories: HOYS-CAPS, 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 ID IC 5070
Pelican Nebula
Details Cygnus
Mag. 8, 60’x50′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX
Exposure(s) 30x180s R
Capture APT
Processing DSS, 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

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Pelican Nebula HaRGB IC 5070

By |2019-08-16T22:39:18+00:0013 August 2019|Categories: HOYS-CAPS, 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 ID IC 5070
Pelican Nebula
Details Cygnus
Mag. 8, 60’x50′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX
Exposure(s) 3x180s RGB, 3x300s Ha
Capture APT
Processing DSS, Nebulosity, Photoshop
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Wide angle Milky Way shots from the Languedoc

By |2019-08-07T20:42:30+00:004 August 2019|Categories: Milky Way, News, Other, Wide Angle|

So – because there’s no night in Scotland from May to August, I went south to the Languedoc hills. Sainte-Polycarpe in the Aude region to be precise. First real use of my Skywatcher Star Adventurer mount. Great fun, still a lot to learn, but got some decent images. Also made a fun little video story of my holiday in a beautiful region of France.

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Cygnus Wall – red channel only

By |2019-08-29T12:07:54+00:0023 July 2019|Categories: Caldwell, Nebula, News, NGC Summer|

After gathering HOYS-CAPS data thought I’d give this a quick go in red channel only.

Object ID Cygnus Wall
Details “Mexico and Central American” part of North America Nebula
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX
IDAS P2 LP filter
8x180s 2×2, darks, bias, flats
-11C
Capture APT
Processing Nebulosity, Photoshop
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2MASS J21383981+5708470 in IC1396A

By |2019-07-23T22:03:40+00:0028 June 2019|Categories: HOYS-CAPS, News|

Been gathering HOYS-CAPS data on 2MASS J21383981+5708470 in IC1396A recently because of a possible increase in brightness. This has been stretched and processed to show details. Normal submitted data wouldn’t be.

Object ID 2MASS J21383981+5708470
Details In IC1396A
21 38 39.8 +57 08 47.1
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX
IDAS P2 LP filter
Baader tri-colour red filter
Exposure(s) 3x180s, darks, bias, flats
-16C
Capture APT
Processing Nebulosity, Photoshop
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Jupiter colour / infrared

By |2019-06-26T09:01:41+00:0025 June 2019|Categories: Jupiter, News|

Jupiter is so low that only half of the telescope could see over the lip of the dome, so effectively only a 125mm telescope – not 250mm! Surprised I got anything at all at this altitude.

Not much detail visible but the infrared version is much sharper, cutting through the atmospheric turbulence better, and shows the Great Red Spot as white. The SEB is clearly changing and shows white in the colour image. Is this part of the unravelling of the GRS that is reportedly happening?

Diameter=45.89″
Magnitude=-2.61

Object ID Jupiter
Details Diameter=45.89″
Magnitude=-2.61
Telescope 250mm f4.8 Newtonian
Camera ZWO ASI290MC
Exposure(s) 120s videos each
Capture FireCapture
Processing PIPP, Autostakkert, Registax 6
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