Deep Sky – Page 6 – Crayford Manor House Astronomical Society Dartford

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This face on spiral galaxy lies at a distance of about 66 million light years and is about 75,000 light years across or about half the size of the Milky Way Galaxy. This object has a fairly low surface brightness, and so will be a tougher to observe than the mag 11.3 would suggest. You'll need dark skies and a large aperture to really appreciate this.

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NGC6814, Face on Spiral in Aquila, Imaged by Debra Holton, using the Faulkes 2m telescope

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Globular Cluster in Serpens, NGC6539

28th August 2018

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NGC 6539 is a globular cluster in the constellation Serpens. It was discovered by Theodor Brorsen in 1856

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Globular Cluster NGC6539 Imaged by Debra Holton using the Faulks 2m Telescope.

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Globular Cluster in Baade’s Window, NGC6522

28th August 2018

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Two globular clusters very close to each other seen through the dense star field in the direction towards the centre of our Galaxy, in the constellation Sagittarius. These systems are relatively young for globular clusters, being only about 10 million years old.

They can be spotted between gamma1 and W Sagitarii (see finder chart below). NGC6522 (right) sits right in the centre of Baade's Window

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Image by Debra Holton of NGC6522 taken with the 2m Faulkes Telescope.

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Seyfert’s Sextet, NGC6027

28th August 2018

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Seyfert's Sextet is a group of galaxies about 190 million light-years away in the constellation Serpens Caput. The group appears to contain six members, but one of the galaxies is a background object and another "galaxy" is actually a separated part of one of the other galaxies. The gravitational interaction among these galaxies should continue for hundreds of millions of years. Ultimately, the galaxies will merge to form a single giant elliptical galaxy.

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NGC 6027 Seyfert's Sextet, imaged by Deborah Holton using the Faulks 2m Telescope

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Edge on Spiral in Serpens – NGC5964

27th August 2018

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Edge on Spiral galaxy in Serpens

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NGC5964 Imaged by Deborah Holtan using the Faulkes 2m Telescope

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The California Nebula – NGC1499

27th August 2018

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The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the US State of California. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually. It can be observed with a H-Beta filter (isolates the H-Beta line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth.
The California Nebula was discovered by E. E. Barnard in 1884.

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California Nebula by Julian Tworek.
DSLR, Light Pollution Filter, Short focus Refractor

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The Leo Triplet – M65, M66 and NGC3628

27th August 2018

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NGC 3628 is an unbarred spiral galaxy about 35 million light-years away in the constellation Leo. It was discovered by William Herschel in 1784. It has an approximately 300,000 light-years long tidal tail. NGC 3628 along with M65 and M66 form the famous Leo Triplet, a small group of galaxies. Its most conspicuous feature is the broad and obscuring band of dust located along the outer edge of its spiral arms, effectively transecting the galaxy to our view.

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Imaged by Martin Crow.

80mm Equinox ED Refractor @ f6 with Canon 400D, 8 x 60s

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Altair Astro AO EQ6-R, ZWO ASI294MC Pro

Total exposure ~4hrs
St Mary's Platt, Kent.

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Image by Kevin Langford

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The Horsehead Nebula, Barnard 33

20th August 2018

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The Horsehead Nebula (also known as Barnard 33 in bright nebula IC 434) is a dark nebula in the constellation of Orion.

The nebula is located just below Alnitak, the star furthest left on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. It is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which is similar to that of a horse's head. The shape was first noticed in 1888 by Williamina Fleming on photographic plate B2312 taken at the Harvard College Observatory.

The red glow originates from hydrogen gas (hydrogen alpha) predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funnelled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming.

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Image by Julian Tworek,
Widefield 4" Semi-Apo refractor and Canon DSLR

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Imaged By Julian Tworek
80mm Orion ED Refractor, MX716 CCD

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Imaged By Keith Rickard
SBIG ST7-XME CCD camera, 8" Meade LX200 Schmidt Cassegrain Classic at F3.3, 30 x 2min in red, green and luminance and 10 x 2min in blue

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Image by Simon Dawes
Skywatcher MN190, EQ6Pro, Canon 600D (Full Spectrum Mod) CLSCCD Filter
45 minutes Integration, Bexleyheath, England.

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NGC2024 Flame Nebula + Horsehead Nebula By Kevin Langford

ES 102ED APO, EQ5 Pro
ZWO ASI071, Orion MMAG, UHC filter & Ha filter.
2.5hrs of exposures (1.5hrs in Ha exposures)
18/01/2020
Bexley, Kent.

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Images by Leigh Slomer

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[caption id="" align="aligncenter" width="800"] 1_20210113-104716 Image by Leigh Slomer A couple of hours work during a rare gap in the clouds.[/caption]

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Category: Deep Sky

Face on Spiral in Aquila, NGC6814

Globular Cluster in Serpens, NGC6539

Globular Cluster in Baade’s Window, NGC6522

Seyfert’s Sextet, NGC6027

Edge on Spiral in Serpens – NGC5964

The California Nebula – NGC1499

The Leo Triplet – M65, M66 and NGC3628

The Horsehead Nebula, Barnard 33

Images by Leigh Slomer