NGC 3372, 45 minutes of integration in SHO with Planewave 17" CDK (Corrected Dall-Kirkham Astrograph) telescope, 431/2912 f 6/8, CCD camera: Moravian G4 16000, are 9 shots of which in Ha 3x300s, in OIII 3x300s and in SII 3x300s, processing with Pixinsight and Photoshop. The Carina Nebula (also known as the Eta Carinae Nebula or NGC 3372 and C 92) is an emission nebula located in the heart of the southern Milky Way, in the constellation Carina. It is perfectly visible even to the naked eye, although its observation is limited to the regions of the Earth's southern hemisphere and the boreal tropics; it was first catalogued by Nicolas Louis de Lacaille in 1751, during his stay in Cape Town.
It is one of the largest known H II regions within our Galaxy: the nebula has real dimensions that reach 260 light years and surrounds several open clusters, as well as one of the most massive stars known, the variable η Carinae. Some star formation phenomena are active within it, although to a lesser extent than in other similar nebulae: this would be an indicator of the high evolutionary degree of this nebula. Its distance is estimated at 7500 light-years from us.
As evidence that star formation in the astronomically recent past has been quite intense, there are a large number of open clusters and stellar associations, all composed of very hot, blue young stars, which excite the nebula's gas and perturb it with their strong stellar wind. Within the nebula there are also well-known substructures, such as the Homunculus Nebula, which surrounds the star η Carinae and the Keyhole Nebula, whose name was assigned to it by John Herschel in the first half of the nineteenth century.
Tags: NGC3372 NGC C92 Caldwell
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Velo Nebula, 60 minutes of integration in SHO with Takahashi FSQ-106EDX4 196/382 f 3/6 telescope, QHY 600M Pro CCD camera, are 6 shots of which in Ha 2x600s, in OIII 2x600s and in SII 2x600s, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. The Veil Nebula (also known by the Caldwell Catalogue acronyms C 33 and C 34) is a large diffuse nebula visible in the southeastern part of the constellation Cygnus.
The distance of the nebula is not known with certainty; data from the Far Ultraviolet Spectroscopic Explorer (FUSE) indicate a distance of about 1,470 light-years. This intricate system of nebulae is visible with binoculars with 80-90mm objectives or with a small telescope as long as you have a dark sky, even better if you use a filter (UHC, OIII): it is best revealed in long exposure photos (even with a CCD camera it takes several minutes). The object will appear to be made up of three very delicate nebulous filaments, arranged to form a sort of circumference. The brightest part is the easternmost part, known as NGC 6992. Increasing magnification reveals that each filament is actually made up of a network of other, smaller, thinner filaments.
The discovery of this object was the work of William Herschel, who in 1784 described it as follows: "Extended; go through 52 Cygni... about 2 degrees in length"; The western part of the nebula has a description of its own: "Branching nebulosity... The next part splits into a few currents that are still gathered to the south."
Tags: VeilNebula NebulosaVelo Nebulosa Velo NGC NGC6960 NGC6974 NGC6979 NGC6992 NGC6995
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RCW62 60 minutes of integration in SHO with Takahashi FSQ-106ED 106/382 f 3/6 telescope, QHY 600M Pro camera, are 12 shots of which in Ha 4x300s, in OIII 4x300s and in SII 4x300s, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. The large bright nebula IC 2944 (RCW 62/Gum 42) corresponds to the "body" of the Running Chicken nebula complex, which is ionized by the Cru OB1 association.
According to Avedisova, the nebula is ionized by the giant O6 III HD 101190, the star O6 V HD 101436 and the subgiant O9 IV HD 101223 as well as the supergiant B0.5 Iab HD 101545. (SIMBAD provides a much more interesting B6Ib/II class for HD 101436.)
A 2013 study notes that X-ray sources in this direction are concentrated around the star O8 V HD 101205 suggesting that this star could also be associated with the nebula.
Avedisova places RCW 60, RCW 61, RCW 62, Gum 39, Gum 40, Gum 41, Gum 42 and IC 2944 in the star formation region SFR 293.64-1.41 with 51 components, including 7 masers and 18 infrared sources. Humphreys says that hot stars in this direction form the Cru OB1 association at an average distance of 2510 parsecs.
Dutra and colleagues state that RCW 62 contains the infrared group [DBS2003] 69, although curiously they provide a distance of only 1700 parsecs.
Tags: RCW RCW62 IC IC2944 GUM42 GUM
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M 8 the Lagoon Nebula, 90 minutes of integration with ASA 500N 500/1900 f 3/8 telescope, CCD camera FLI PL 16803 (spec sheet), are 15 shots of which in Ha 5x300s, in OIII 5x300s and in SII 5x300s, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. The Lagoon Nebula (also known as M 8, or NGC 6523) is a diffuse nebula in the constellation Sagittarius. it was discovered by Le Gentil in 1747.
It is one of the brightest H II regions in the sky and is visible even to the naked eye under fairly clear and dark skies. The Lagoon Nebula is easily spotted even with the naked eye on particularly clear nights; its location is easy to find, being about 7° north of the star γ Sagittarii (Al Nasl), which represents the arrowhead of Sagittarius. The region that hosts it is very rich in background stars and the glow of the Milky Way is very intense, due to the proximity of the core; A pair of 10x50 binoculars is able to show several details: it appears as an extensive and opaque spot, somewhat elongated in an east-west direction and surrounded by several stars. A 120-140mm telescope allows you to notice further details, such as variations in brightness intensity, and also several of the associated stars; With 200mm instruments, a large number of minor details are visible.
The Lagoon Nebula can be observed fairly easily from most of the populated areas of the Earth, thanks to the fact that it is located at a declination that is not excessively southern: in some areas of Northern Europe and Canada, near the Arctic Circle, its visibility is still impossible, while in central Europe it appears very low; from the southern hemisphere the nebula is clearly visible high in the nights of the austral winter and at the height of the Tropic of Capricorn it can be seen almost perfectly at the zenith. The best time to observe it in the evening sky is between June and October.
The nebula is located at a short distance from the ecliptic (less than one degree) and therefore cases of occultation by the various bodies of the solar system are not uncommon.
Tags: M8 Messier Lagoon Nebula NebulosaLaguna LagoonNebula
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LBN292, 60 minutes of integration with Takahashi FSQ-106EDX4 telescope, 106/382 f 3/6, QHY 600M Pro CCD camera, are 6 shots of which in Ha 2x600s, in OIII 2x600s and in SII 2x600s, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. LBN 292 is a region of ionized gas illuminated by a cluster of hot, young stars within it.
Tags: LBN292 LBN 292
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