NGC 346
Distance | 210,000 light-years | |
|---|---|---|
| Physical characteristics | ||
| H II region | ||
| Other designations | ESO 51-10,[2] N66 | |
| Associations | ||
| Constellation | Tucana[3] | |
NGC 346 is a young one of the brightest stars in the SMC.
This cluster is located near the center of the brightest
earlier.[8] The inner 15 pc radius of the cluster appears centrally condensed, while the area outside that volume is more dispersed.[9] The youngest cluster members near the center have ages of less than two million years,[7] and observations suggests the cluster is still engaged in high mass star formation.[7] The cluster star formation rate is estimated at (4±1)×10−3 M☉ yr−1.[9]
Recent observations[10] by NASA's James Webb Space Telescope have provided unprecedented insights into NGC 346. These observations have revealed surprising details about the cluster's dust environment, challenging previous assumptions and shedding light on the processes of protostar formation and early planetary development within this dynamic stellar nursery. Webb's observations mark a significant advancement in our understanding of star formation in the Small Magellanic Cloud and offer exciting avenues for further research into the cosmic evolution of galaxies.
-
Image of NGC 346 with a 30 arcminute wide field of view showing the wispy nebular structure around it.
| Walborn | ELS | MPG | NMC | SSN | Spectral type |
Effective temperature (K) |
Absolute magnitude |
Bolometric magnitude |
Mass (M☉) |
|---|---|---|---|---|---|---|---|---|---|
| 207758 | 755 (HD 5980/AB5) |
LBV WN4 OI |
45,000 45,000 34,000 |
−7.1 (−8.1) −6.8 −6.7 |
−11.135 −10.885 −9.885 |
61 66 34 | |||
| 1 | 435 | 26 | 7 | O5.5If | 43,400 | −6.7 | −10.7 | 91 | |
| 1 | 789 | 5 | O7If | 38,900 | −7 | −10.7 | 85 | ||
| 3 | 355 | 29 | 9 | O3V | 51,300 | −5.7 | −10.3 | 76 | |
| 6 | 7 | 324 | 32 | 13 | O4V | 48,600 | −5.2 | −9.6 | 54 |
| 4 | 342 | 30 | 11 | O5.5V | 44,900 | −5.5 | −9.7 | 53 | |
| 368 | 28 | 15 | O5.5V | 44,900 | −5 | −9.2 | 43 | ||
| 2 | 470 | 25 | O8.5III | 35,700 | −5.4 | −8.9 | 34 |
See also
References
- ^ S2CID 118620464. A3.
- ^ "NGC 346". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2007-04-17.
- ^ "Hubble Heritage Site". Results for NGC 346. Retrieved 2007-04-03.
- ^ S2CID 209376523. A6.
- ^ Seligman, Courtney. "New General Catalogue objects: NGC 300 - 349". cseligman.com. Retrieved 2020-09-17.
- S2CID 118907796.
- ^ S2CID 148571638. A50.
- ^ S2CID 119190580. A121.
- ^ .
- ^ "Webb Discovers Star Formation in Dusty Ribbons of a star cluster NGC 346". www.jameswebbdiscovery.com. Retrieved 2024-02-20.
- S2CID 16891188.
External links
Media related to NGC 346 at Wikimedia Commons- ESA'
- Hubble Heritage site Hubble picture and information on NGC 346
- ESO Beautiful Image of a Cosmic Sculpture
- NASA Astronomy Picture of the Day: Young Stars of NGC 346 (28 September 2008)
- NASA Astronomy Picture of the Day: NGC 346 in the Small Magellanic Cloud (17 October 2010)
