Hemisphere:  Southern  ·  Constellation: Fornax (For)  ·  Contains:  Fornax Dwarf Cluster 3  ·  NGC 1049
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The Fornax Dwarf galaxy MCG-06-07-001 and Four of his globular clusters, 



    
        

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The Fornax Dwarf galaxy MCG-06-07-001 and Four of his globular clusters

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The Fornax Dwarf galaxy MCG-06-07-001 and Four of his globular clusters, 



    
        

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The Fornax Dwarf galaxy MCG-06-07-001 and Four of his globular clusters

Equipment

Imaging Telescopes Or Lenses
PlaneWave Instruments CDK 12.5"
Imaging Cameras
Moravian Instrument G4-16000
Mounts
Astro-Physics Inc AP 1100 GTO
Filters
Chroma L · Chroma Technology Chroma Ha 3nm · Chroma Technology Chroma OIII 3nm · Chroma Technology Chroma Blue · Chroma Technology Chroma Green · Chroma Technology Chroma R · Chroma Technology Chroma SII 3nm
Accessories
Skyméca DO 3"
Software
TheSkyX · Adobe Photoshop CC 2020 · Pixinsight · MaxPilote · FocusMax4
Guiding Telescopes Or Lenses
PlaneWave Instruments CDK 12.5"
Guiding Cameras
Atik 414EX

Acquisition details

Dates:
Dec. 5, 2021 ·  Dec. 6, 2021 ·  Dec. 7, 2021 ·  Dec. 8, 2021 ·  Dec. 10, 2021
Frames:
Chroma Technology Chroma Blue: 19x300" (1h 35') bin 1x1
Chroma Technology Chroma Green: 20x300" (1h 40') bin 1x1
Chroma Technology Chroma Ha 3nm: 13x1200" (4h 20') bin 1x1
Chroma Technology Chroma R: 17x300" (1h 25') bin 1x1
Chroma L: 150x300" (12h 30') -20°C bin 1x1
Integration:
21h 30'
Darks:
55
Flats:
7
Bias:
200
Avg. Moon age:
3.82 days
Avg. Moon phase:
18.18%
Bortle Dark-Sky Scale:
1.00

RA center: 02h40m09s.332

DEC center: -34°2849.93

Pixel scale: 0.732 arcsec/pixel

Orientation: 0.669 degrees

Field radius: 0.546 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 3751x3840

Data source: Own remote observatory

Remote source: Observatorio El Sauce

Description

this time we change the type of target to offer you a dwarf galaxy and therefore diffuses with four of its six globular clusters.The position of the clusters is listed in the "version C" image on astrobin.The Fornax Dwarf galaxy MCG-06-07-001The Fornax dwarf galaxy is one of the Milky Way’s neighbouring dwarf galaxies.The Fornax Dwarf galaxy (aka MCG-06-07-001, PCG10093) is located in the constellation Fornax. The galaxy is an ellipsoidally shaped swarm of old stars, which formed about the same time as the galaxy and are similar to those in globular clusters. This galaxy is a satellite of our Milky Way, approximately 500,000 light years distant and contains six globular clusters; the largest, NGC 1049, was discovered before the galaxy itself. The galaxy is also receding from the Milky Way at 53 km/s. Due to the galaxy's low surface brightness and large extension, it is a difficult target for visual observation at mag 9 with the brightest stars around 19th magnitudeObservations of six globular clusters — large balls of stars that orbit the centres of galaxies — found in Fornax show they are very similar to those found in our galaxy, the Milky Way. The finding is at odds with leading theories on how these clusters form — in these theories, globular clusters should be nestled among large quantities of old stars — and so the mystery of how these objects came to exist deepens.In the Fornax dwarf spheroidal galaxy, globular clusters preserve their diffuse spatial distribution despite the fact that the clusters' orbital decay timescale is much shorter than the estimated age of the host galaxy. We propose that this paradox may be resolved if (1) Fornax contains black holes with a sizeable fraction of the mass of these clusters or if (2) it is currently undergoing tidal disruption. For the black hole scenario, a centrally peaked velocity-dispersion distribution is anticipated but has not been observationally confirmed. The second scenario requires Fornax to have lost a significant fraction of its original mass. The second scenario is possible if the mass of the Galactic dark matter is ~1012 M☉ out to the present distance of the Fornax dwarf spheroidal galaxy or if Fornax is near its apogalacticon (The point in the orbit of a star at which it is furthest from the centre of its local galaxy) and has an orbit similar to that of the Large Magellanic CloudUsing the Hubble Space Telescope, scientists derived a color-magnitude diagram for Fornax 4, a globular cluster within this galaxy. Unlike the globular clusters Fornax 1, 2, 3, and 5, which have horizontal branches across a wide range of colors and include RR Lyrae variables, Fornax 4 is found to have only red in its horizontal branch. Fornax 4 is also ~3 Gyr younger than the other globular clusters. The color-magnitude diagram of Fornax 4 has a strong similarity to "young" galactic globular Ruprecht 106.[6]It is not known why spheroidals allow the formation of globular clusters like Fornax 4 and Terzan 7 (of Sagittarius dwarf) long after globular clusters ceased to form in the main body of the Galactic halo. Another possibility is that "young" globular clusters of the outer halo like Ruprecht 106 were originally formed in now defunct dwarf spheroidals.[7]

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    The Fornax Dwarf galaxy MCG-06-07-001 and Four of his globular clusters, 



    
        

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    Original
  • Final
    The Fornax Dwarf galaxy MCG-06-07-001 and Four of his globular clusters, 



    
        

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    B

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The Fornax Dwarf galaxy MCG-06-07-001 and Four of his globular clusters, 



    
        

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