Astronomy:NGC 6334
| Emission nebula | |
|---|---|
 Infrared image of the Cat's Paw Nebula. Green areas showing regions where radiation from hot stars collided with large molecules and small dust grains called "polycyclic aromatic hydrocarbons" (PAHs), causing them to fluoresce Credit: Spitzer space telescope, 2018 | |
| Observation data: J2000 epoch | |
| Right ascension | 17 20 50.9h[1] |
| Declination | −36° 06′ 54″[1] |
| Distance | 4.37 ± 0.65 kly (1.34 ± 0.2 kpc)[2] ly |
| Apparent dimensions (V) | 40'×23' |
| Constellation | Scorpius |
| Physical characteristics | |
| Radius | 40 ly |
| Designations | NGC 6334, ESO 392-EN 009,[3] Sharpless 8, RCW 127, Gum 64 |
NGC 6334, colloquially known as the Cat's Paw Nebula, Bear Claw Nebula, or Gum 64, is an emission nebula and star-forming region located in the constellation Scorpius.[4] NGC 6334 was discovered by astronomer John Herschel in 1837, who observed it from the Cape of Good Hope in South Africa .[5] The nebula is located in the Carina–Sagittarius Arm of the Milky Way,[6] at a distance of approximately 5.5 kilolight-years from the Sun.[7]
The nebula is a high mass filamentary cloud structure spanning ~320 ly. In the visible part of the spectrum, it emits mainly in red (from hydrogen atoms) and blue (from oxygen atoms).[8] Several embedded star-forming regions have been identified from infrared and radio emissions. Four of these sites have formed H II regions.[6]
Gallery
Spitzer view of the star-forming region NGC 6334
This portrait of NGC 6334 was created from images taken with the Wide Field Imager instrument at the 2.2-metre MPG/ESO telescope at the La Silla Observatory in Chile.
ESO's VISTA infrared view of NGC 6334
Submillimetre views of the star formation region
Protocluster NGC 6334I is a star-forming cloud in the Cat's Paw Nebula.[10]
The photograph of NGC 6334.
VISTA infrared view of NGC 6334.
NGC 6334 photographed in 1986
References
- ↑ 1.0 1.1 Kharchenko, N. V. et al. (2013), "Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters", Astronomy and Astrophysics 558: 8, doi:10.1051/0004-6361/201322302, A53, Bibcode: 2013A&A...558A..53K.
- ↑ Reid, M. J.; Menten, K. M.; Brunthaler, A.; Zheng, X. W.; Dame, T. M.; Xu, Y.; Wu, Y.; Zhang, B. et al. (2014). "Trigonometric Parallaxes of High Mass Star Forming Regions: The Structure and Kinematics of the Milky Way". The Astrophysical Journal 783 (2): 130. doi:10.1088/0004-637X/783/2/130. Bibcode: 2014ApJ...783..130R.
- ↑ "NGC 6334". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+6334.
- ↑ Nemiroff, R.; Bonnell, J., eds (2003-07-17). "The Cat's Paw Nebula". Astronomy Picture of the Day. NASA. https://apod.nasa.gov/apod/ap030717.html.
- ↑ "NGC 6334 - The Cat's Paw Nebula". SEDS Database. SEDS. http://spider.seds.org/spider/Misc/n6334.html.
- ↑ 6.0 6.1 Sadaghiani, M. et al. (March 2020). "Physical properties of the star-forming clusters in NGC 6334. A study of the continuum dust emission with ALMA". Astronomy & Astrophysics 635: 25. doi:10.1051/0004-6361/201935699. A2. Bibcode: 2020A&A...635A...2S.
- ↑ Russeil, D. et al. (2012). "Statistical study of OB stars in NGC 6334 and NGC 6357". Astronomy & Astrophysics 538: A142. doi:10.1051/0004-6361/201117299. Bibcode: 2012A&A...538A.142R.
- ↑ "NGC 6334, Cat's Paw Nebula(true color)". Earth and sky imaging. October 2019. https://earthandskyimaging.com/product/ngc-6334-cats-paw-nebulatrue-color/?doing_wp_cron=1639154796.5445110797882080078125.
- ↑ "The Cat's Paw and Lobster Nebulae". https://www.eso.org/public/images/eso1705a/.
- ↑ "Protostar blazes and reshapes its stellar nursery". https://www.eso.org/public/images/potw1712a/.
External links
- On the Trail of a Cosmic Cat — ESO Photo Release
- NGC 6334 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Astronomy Picture of the Day - Wide Angle: The Cat's Paw Nebula 2010 April 21
- Cat's Paw Nebula at Constellation Guide
Coordinates: 
17h 19m 58s, −35° 57′ 47″
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