gingadan.com

NGC 6357 (War and Peace Nebula)


Home > Nebula - Sharpless > NGC6357
Down
Movie

NGC 6357
War and Peace Nebula (戦争と平和星雲)
Emission Nebula (散光星雲)
Nb EN+OCL


別名 (Other names)
ESO 392-SC10, Sh2-11, RCW 131, Gum 66, CED 142, 彼岸花星雲

星座 (Constellation)
さそり座 (Sco) (Scorpius)


距離 (Distance)

8,000光年 (8,000 light-years)

NGC 6357(Sh2-11)は、さそり座の散光星雲でNGC 6334の近くに位置する。
この星雲は、その外観からWar and Peace NebulaとMSXの科学者達に名づけられた。
彼らは、星雲は赤外線画像では明るく、西部は鳩に似ていて、東部は頭蓋骨のように見えると述べた。
日本では彼岸花星雲と呼ぶこともある。
この星雲はガスの濃いディスクで覆われた多くの原始星を含んでいる。

Pismis 24
この星雲は、いくつかの大質量星を持つ散開星団Pismis 24を含んでいる。
Pismis 24で最も明るい星の1つPismis 24-1は、100M☉を超える星の連星系である事が発見されるまでは、300M☉に近いとされて、記録上最も大質量星かもしれないと考えられていた。

War and Peace Nebula (NGC 6357) is an emission nebula located 8,000 light years from the Earth in the constellation Scorpius.

NGC 6357 (War and Peace Nebula) : Picture

NGC 6357
Massive Stars in NGC 6357
(C) Johannes Schedler (Panther Observatory)
Massive stars lie within NGC 6357, an expansive emission nebula complex some 8,000 light-years away in the tail of the constellation Scorpius. In fact, positioned just below center in this close-up view of NGC 6357, star cluster Pismis 24 includes some of the most massive stars known in the galaxy, stars with over 100 times the mass of the Sun. The nebula's bright central region also contains dusty pillars of molecular gas, likely hiding massive protostars from the prying eyes of optical instruments. Intricate shapes in the nebula are carved by interstellar winds and energetic radiation from the young and newly forming massive stars. This alluring telescopic view spans just under 50 light-years at the estimated distance of NGC 6357.

NGC 6357
Wide-field view of the area of NGC 6357
(C) Davide De Martin (ESA/Hubble), the ESA/ESO/NASA Photoshop FITS Liberator & Digitized Sky Survey 2
Part of the constellation Scorpius centred on NGC 6357 which has star cluster Pismis 24 in its centre. This image is a colour composite taken by the Digitized Sky Survey (DSS), the field of view is 3.8x3.3 degrees.

NGC 6357
Comparison of VISTA image of NGC 6357 with a visible light image
(C) ESO/VVV Survey/Digitized Sky Survey 2/D. Minniti. Acknowledgement: Ignacio Toledo
This image compares infrared and visible views of the Lobster Nebula (NGC 6357). The visible light image (left) was created from the Digitized Sky Survey 2 images. The new infrared image (right) was taken with the VISTA telescope at ESO's Paranal Observatory. In the infrared, the dust that obscures many stars becomes nearly transparent, revealing a whole host of new stars that are otherwise invisible.

NGC 6357
Close-up view of NGC 6357
(C) ESO
ESO’s Very Large Telescope (VLT) has taken the most detailed image so far of a spectacular part of the stellar nursery called NGC 6357. The view shows many hot young stars, glowing clouds of gas and weird dust formations sculpted by ultraviolet radiation and stellar winds.

Pismis 24
Pismis 24
(C) ESO/IDA/Danish 1.5 m/ R. Gendler, U.G. Jørgensen, J. Skottfelt, K. Harpsøe
Home to some of the largest stars ever discovered, the open stellar cluster Pismis 24 blazes from the core of NGC 6357, a nebula in the constellation of Scorpius. Several stars in the clusters weigh in at over 100 times the mass of the Sun, making them real monster stars. The strange shapes taken by the clouds are a result of the huge amount of blazing radiation emitted by these massive, hot stars. The gas and dust of the nebula hide huge baby stars in the nebula from telescopes observing in visible light, as well as adding to the hazy appearance of the image.
This image combines observations performed through three different filters in visible light (B, V, R) with the 1.5-metre Danish telescope at the ESO La Silla Observatory in Chile.

Pismis 24
Massive Stars in Open Cluster Pismis 24
(C) NASA, ESA and J. M. Apellániz (IAA, Spain)
How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. This star is the brightest object located just above the gas front in the above image. Close inspection of images taken recently with the Hubble Space Telescope, however, have shown that Pismis 24-1 derives its brilliant luminosity not from a single star but from three at least. Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. Toward the bottom of the image, stars are still forming in the associated emission nebula NGC 6357, including several that appear to be breaking out and illuminating a spectacular cocoon.

NGC 6357
The stellar nursery NGC 6357 in the constellation of Scorpius
(C) ESO, IAU and Sky & Telescope
This chart shows the location of NGC 6357 in the constellation of Scorpius. This map shows most of the stars visible to the unaided eye under good conditions, and NGC 6357 itself is highlighted with a red circle on the image. Although this stellar nursery is prominent in images it is faint visually and needs a large telescope for a good view.

NGC6357 (War and Peace Nebula) Open Cluster Pismis 24
NGC 6357 (War and Peace Nebula)
(C) NASA
Open Cluster Pismis 24
(C) NASA

Pismis 24-1 Pismis 24-1
Pismis 24-1
(C) NASA
Pismis 24-1
(C) NASA
Up
Up

NGC 6357 (War and Peace Nebula) : Movie

Zooming in on NGC 6357
This zoom video sequence starts with a broad view of the Milky Way. We close in on one of the regions of active star formation in the constellation of Scorpius and a curious landscape of vast numbers of stars, glowing gas and dust is revealed. The final view shows the most detailed image so far of a spectacular part of this stellar nursery, named NGC 6357.

Panning across the stellar nursery NGC 6357
This pan video gives a close-up view of a spectacular part of the stellar nursery called NGC 6357. The view from ESO's Very Large Telescope (VLT) shows many hot young stars, glowing clouds of gas and weird dust formations sculpted by ultraviolet radiation and stellar winds.
Up
Home > Nebula - Sharpless > NGC6357
Up

「ウィキペディア(wikipedia):フリー百科事典」より文章引用。
NGC 6357. (2012, May 8). In Wikipedia.
gingadan.com ブログパーツ