RCW33, it's 60 minutes of exposure in SHO with Takahashi FSQ-106ED 106/382 f3/6 telescope, QHY 600M Pro camera, it's 12 shots of which in Ha 4x300 seconds, in OIII 4x300 seconds and in SII 4x300 seconds, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. RCW33 or GUM 17 is a large emission nebula visible in the constellation Velas. It is located in the northwestern part of the constellation, about a quarter of the angular distance between the stars Suhail (λ Velorum) and Naos (ζ Puppis). It appears as an extensive and faint irregular spot, easily detectable and photographed with the aid of filters through a medium-power telescope. Its strongly southern declination means that from the boreal regions its observation is particularly difficult from the lower temperate belt, while north of 48°N it is always invisible. From the southern hemisphere, on the other hand, it can be observed for almost every night of the year. The best time for its observation in the evening sky is from December to May.
Its galactic position is the subject of controversy: according to some studies, in fact, it would be associated with the blue giant HD 75759, located about 1000 parsecs (about 3300 light years) away; if this were true, this nebula would be physically bound to the Vela Molecular Ridge, a large molecular nebula complex, and in particular to the molecular cloud called VMR D. There would also be other stars responsible for the ionization of its gases, such as HD 75724. The star-forming region with which it is associated is referred to as Avedisova 2169 in the catalog of the same name published in 2002. According to other studies, however, this cloud would be associated with the young open cluster Tr 10, located on the southwestern edge of the nebula, whose distance, however, is around 420 parsecs (1370 light years); if so, Gum 17 would not be part of the Vela Molecular Ridge complex, but would be about 500 parsecs from it in the direction of the Sun, at a distance comparable to that of the Gum Nebula and the Vela OB2 association (Cr 173).
Within the nebula, several IRAS sources are known, whose spectral characteristics are comparable to those of young Class I stellar objects, probably T Tauri stars; This association of young stars has been named with the acronym Vela T2. The presence of these stars is evidence that star formation phenomena have been active in the cloud in the astronomically recent past.
Tags: RCW GUM GRS NGC
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ABELL 2151, one hour and 5 minutes of exposure in LRGB with Planewave CDK24 610/3962 f 6/5 telescope, QHY 600M Pro camera, are 13 shots of which in L 4x300 seconds, in R 3 x300 seconds, in G 3x300 seconds and in B 3 x300 seconds, processing with Pixinsight and Photoshop. All data and shots were taken with Telescope Live. The Hercules Cluster (Abell 2151) is a galaxy cluster located in the constellation of Hercules at a distance of more than one billion light-years from Earth.
It is included in the Abell Catalogue compiled in 1958[3] and has a richness class 2, as it consists of 129 galaxies. It is a type III cluster according to the Bautz-Morgan classification as it also contains numerous spiral galaxies. In addition, there are several interacting galaxies.
The Hercules Cluster is part of the Hercules Supercluster (SCl 160) which in turn is part of the Great Wall CfA2. The brightest galaxy is the elliptical NGC 6041.
Tags: ABELL Ngc
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NGC 7000, 9 hours of exposure in SHO with Takahashi FSQ-106EDX4 106/382 f 3/6 telescope, QHY 600M Pro camera, are 110 shots of which in Ha 40x300 seconds, in OIII 34x300 seconds and in SII 36 x300 seconds, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. The North America Nebula (also known as NGC 7000 and C 20) is a nebula in the constellation Cygnus, near Deneb (the tail of the swan and its brightest star). The shape of the nebula draws the North American continent, especially the east coast, between the Gulf of Mexico and Florida.
The discovery of the North America Nebula is attributed to the astronomer William Herschel.Together with the nearby Pelican Nebula, it constitutes a single nebula complex, located about 1960 light years away, in which star formation is active, as evidenced by the presence of several young stellar objects and HH objects; These phenomena mainly concern stars of small and medium mass.
Due to its brightness and extension, it is one of the most photographed objects in the northern celestial hemisphere.
Tags: NGC C20
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The Pillars of Creation, 60 minutes of integration in SHO with Planewave CDK24 610/3962 f 6/5 telescope, QHY 600M Pro camera, are 12 shots of which in Ha 3x300 seconds, in OIII 5x300 seconds and in SII 4x300 seconds, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. The Pillars are three very dense structures of gas and dust located in the southeastern edge of the Eagle Nebula; They were created by the action of the stellar wind of the giant stars of the central open cluster. Their cataloguing follows the ascending Roman numerals, so the individual structures are called Column I, Column II, and Column III, proceeding from northeast to southwest. The morphology and ionized structure is well known thanks to the advent of space telescopes: the ionizing radiation coming from the stars of the cluster compresses the gases of the molecular clouds increasing their pressure at the surface, while a photoevaporating flow of ionized material is generated on the opposite side of the source of the stellar wind; This is the phenomenon responsible for the "pillar" structure of clouds.
The lower-density matter is the first to be swept away, while the denser core, further compressed due to the shock wave front, survives, resisting the force. However, near-infrared images show that the first two columns have a relatively sparse structure, concentrated by much denser cores that defend it from the disruptive action of the wind. To the southeast of the Pillars is another molecular nebula structure, cataloged as Column IV, located near a known Herbig-Haro object, HH 216.
The total mass of the dense areas of the three Pillars is estimated at 200 M☉. The ionizing stars in the columns are located 2 parsecs away from them.
Tags: PilastriDellaCreazione Pilastri della Creazione PillarsOfCreatione PillarsOfCreation
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Galactic Center, 2 hours of integration in LRGB with Takahashi FSQ-106ED 106/382 f 3/6 telescope, QHY 600M Pro CCD camera, are 12 shots of which in L 4x600 seconds, in R 2x600 seconds, in G 4x600 seconds and in B 2x600 seconds, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. In this photo from the Galactic Center, the stars 2 Sgr and 3Sgr are visible, NGC 6476 which is a star cloud located in the constellation Sagittarius, NGC 6425, an open cluster located in the constellation Scorpius, NGC 6451, an open cluster located in the constellation Scorpius, and NGC 6480 which is a group of stars located in the constellation Scorpius
Tags: Galactic Center GalacticCenter NGC
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