NGC 7048: Difference between revisions
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{{Short description|Planetary nebula in the constellation Cygnus}} |
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{{Infobox nebula |
{{Infobox nebula |
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|name = NGC 7048 |
|name = NGC 7048 |
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|image = |
|image = NGC7048 - Noao-n7048robinson.jpg |
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|caption = |
|caption = |
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|credit = |
|credit = |
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|epoch = [[J2000]] |
|epoch = [[J2000]] |
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|subtype = |
|subtype = |
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|ra = {{RA|21|14|15.25}}<ref name=Simbad>{{cite web|url=https://simbad.u-strasbg.fr/simbad/sim-id?Ident=%4062765&Name=NGC%20%207048|title=NGC 7048|website=simbad.u-strasbg.fr|access-date=31 January 2022}}</ref> |
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|ra = {{RA|24|14|15.25}}<ref name=Massaro>{{cite journal|doi=10.1088/0067-0049/213/1/3|arxiv=1503.03483|title=The Low-Frequency Radio Catalog of Flat-Spectrum Sources|journal=The Astrophysical Journal Supplement Series|volume=213|issue=1|pages=3|year=2014|last1=Massaro|first1=F.|last2=Giroletti|first2=M.|last3=d'Abrusco|first3=R.|last4=Masetti|first4=N.|last5=Paggi|first5=A.|last6=Cowperthwaite|first6=Philip S.|last7=Tosti|first7=G.|last8=Funk|first8=S.|bibcode = 2014ApJS..213....3M }}</ref> |
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|dec = {{DEC|+46|17|16.1}}<ref name= |
|dec = {{DEC|+46|17|16.1}}<ref name=Simbad/> |
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|dist_ly = 5260 |
|dist_ly = 5260 |
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|dist_pc = 1613<ref>{{cite journal|doi=10.1086/592395|arxiv=0807.1129|title=The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale|journal=The Astrophysical Journal|volume=689|issue=1|pages=194–202|year=2008|last1=Stanghellini|first1=Letizia|last2=Shaw|first2=Richard A.|last3=Villaver|first3=Eva|bibcode = 2008ApJ...689..194S }}</ref> |
|dist_pc = 1613<ref>{{cite journal|doi=10.1086/592395|arxiv=0807.1129|title=The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale|journal=The Astrophysical Journal|volume=689|issue=1|pages=194–202|year=2008|last1=Stanghellini|first1=Letizia|last2=Shaw|first2=Richard A.|last3=Villaver|first3=Eva|bibcode = 2008ApJ...689..194S |s2cid=119257242 }}</ref> |
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|dist_z = |
|dist_z = |
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|appmag_v = 12.1<ref>{{cite web|url=http://spider.seds.org/ngc/revngcic.cgi?NGC7048|title=Revised NGC Data for NGC 7048 - Hartmut Frommert - SEDS|website=seds.org|access-date=14 March 2017}}</ref> |
|appmag_v = 12.1<ref name="seds">{{cite web|url=http://spider.seds.org/ngc/revngcic.cgi?NGC7048|title=Revised NGC Data for NGC 7048 - Hartmut Frommert - SEDS|website=seds.org|access-date=14 March 2017}}</ref> |
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|appdia = 1.02 |
|appdia = 1.02{{prime}} |
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|constellation = [[Cygnus (constellation)|Cygnus]] |
|constellation = [[Cygnus (constellation)|Cygnus]] |
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|radius_ly = |
|radius_ly = |
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|names = PK 088-01 1, PN ARO 41, [[IRAS]] 21124+4604 |
|names = PK 088-01 1, PN ARO 41, [[IRAS]] 21124+4604 |
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}} |
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'''NGC 7048''' is a [[planetary nebula]] in the [[constellation]] of [[Cygnus (constellation)|Cygnus]]. The bright star to the lower left of the nebula is a magnitude 10.5 star, designated TYC 3589-4652-1. The nebula is slightly brighter along the west and east sides.<ref name=Davis/> This planetary nebula has an [[apparent magnitude]] of 12.1. NGC 7048 was discovered by [[Édouard Stephan]] on 19 October 1878 using a 31.5-inch reflector.<ref name=cseligman>{{cite web|url=http://cseligman.com/text/atlas/ngc70.htm#7048|title=New General Catalogue objects: NGC 7000 - 7049|author=Seligman, Courtney|website=cseligman.com|access-date=14 March 2017<!--Happy Pi Day Everyone-->}}</ref> |
'''NGC 7048''' is a [[planetary nebula]] in the [[constellation]] of [[Cygnus (constellation)|Cygnus]]. The bright star to the lower left of the nebula is a magnitude 10.5 star, designated TYC 3589-4652-1. The nebula is slightly brighter along the west and east sides.<ref name=Davis/> This planetary nebula has an [[apparent magnitude]] of 12.1.<ref name="seds"/> NGC 7048 was discovered by [[Édouard Stephan]] on 19 October 1878 using a 31.5-inch [[reflector telescope|reflector]].<ref name=cseligman>{{cite web|url=http://cseligman.com/text/atlas/ngc70.htm#7048|title=New General Catalogue objects: NGC 7000 - 7049|author=Seligman, Courtney|website=cseligman.com|access-date=14 March 2017<!--Happy Pi Day Everyone-->}}</ref> |
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The central star of NGC 7048 is thought to be a [[white dwarf]]. The planetary nebula itself has an elliptical shape; from its low [[surface brightness]] it is thought to be highly evolved.<ref name=Davis>{{cite journal|doi=10.1046/j.1365-8711.2003.06820.x|title=Near-infrared spectroscopy of (proto)-planetary nebulae: Molecular hydrogen excitation as an evolutionary tracer|journal=Monthly Notices of the Royal Astronomical Society|volume=344|issue=1|pages=262–282|year=2003|last1=Davis|first1=Christopher J.|last2=Smith|first2=Michael D.|last3=Stern|first3=Luke|last4=Kerr|first4=Thomas H.|last5=Chiar|first5=Jean E.|bibcode = 2003MNRAS.344..262D |doi-access=free}}</ref> |
The central star of NGC 7048 is thought to be a [[white dwarf]]. The planetary nebula itself has an elliptical shape; from its low [[surface brightness]] it is thought to be highly evolved.<ref name=Davis>{{cite journal|doi=10.1046/j.1365-8711.2003.06820.x|title=Near-infrared spectroscopy of (proto)-planetary nebulae: Molecular hydrogen excitation as an evolutionary tracer|journal=Monthly Notices of the Royal Astronomical Society|volume=344|issue=1|pages=262–282|year=2003|last1=Davis|first1=Christopher J.|last2=Smith|first2=Michael D.|last3=Stern|first3=Luke|last4=Kerr|first4=Thomas H.|last5=Chiar|first5=Jean E.|bibcode = 2003MNRAS.344..262D |doi-access=free}}</ref> |
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== See also == |
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* [[List of NGC objects (7001–7840)]] |
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==References== |
==References== |
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==External links== |
==External links== |
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* [http://members.cox.net/~k5xi/ngc7048.htm NGC 7048] |
* [http://members.cox.net/~k5xi/ngc7048.htm NGC 7048] {{Webarchive|url=https://web.archive.org/web/20100117060447/http://members.cox.net/~k5xi/ngc7048.htm |date=2010-01-17 }} |
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* [http://www.kopernik.org/images/archive/n7048.htm NGC 7048 from Kopernik.org] |
* [http://www.kopernik.org/images/archive/n7048.htm NGC 7048 from Kopernik.org] |
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{{Ngc75}} |
{{Ngc75}} |
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{{Cygnus (constellation)}} |
{{Cygnus (constellation)}} |
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[[Category:Planetary nebulae]] |
[[Category:Planetary nebulae]] |
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[[Category:NGC objects|7048]] |
[[Category:NGC objects|7048]] |
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[[Category:Cygnus (constellation)]] |
[[Category:Cygnus (constellation)]] |
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[[Category:Astronomical objects discovered in 1878|18781019]] |
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[[Category:Discoveries by Édouard Stephan]] |
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| ⚫ | |||
Latest revision as of 02:08, 8 October 2024
| Emission nebula | |
|---|---|
| Planetary nebula | |
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| Observation data: J2000 epoch | |
| Right ascension | 21h 14m 15.25s[1] |
| Declination | +46° 17′ 16.1″[1] |
| Distance | 5260 ly (1613[2] pc) |
| Apparent magnitude (V) | 12.1[3] |
| Apparent diameter | 1.02′ |
| Constellation | Cygnus |
| Designations | PK 088-01 1, PN ARO 41, IRAS 21124+4604 |
NGC 7048 is a planetary nebula in the constellation of Cygnus. The bright star to the lower left of the nebula is a magnitude 10.5 star, designated TYC 3589-4652-1. The nebula is slightly brighter along the west and east sides.[4] This planetary nebula has an apparent magnitude of 12.1.[3] NGC 7048 was discovered by Édouard Stephan on 19 October 1878 using a 31.5-inch reflector.[5]
The central star of NGC 7048 is thought to be a white dwarf. The planetary nebula itself has an elliptical shape; from its low surface brightness it is thought to be highly evolved.[4]
See also
[edit]References
[edit]- ^ a b "NGC 7048". simbad.u-strasbg.fr. Retrieved 31 January 2022.
- ^ Stanghellini, Letizia; Shaw, Richard A.; Villaver, Eva (2008). "The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale". The Astrophysical Journal. 689 (1): 194–202. arXiv:0807.1129. Bibcode:2008ApJ...689..194S. doi:10.1086/592395. S2CID 119257242.
- ^ a b "Revised NGC Data for NGC 7048 - Hartmut Frommert - SEDS". seds.org. Retrieved 14 March 2017.
- ^ a b Davis, Christopher J.; Smith, Michael D.; Stern, Luke; Kerr, Thomas H.; Chiar, Jean E. (2003). "Near-infrared spectroscopy of (proto)-planetary nebulae: Molecular hydrogen excitation as an evolutionary tracer". Monthly Notices of the Royal Astronomical Society. 344 (1): 262–282. Bibcode:2003MNRAS.344..262D. doi:10.1046/j.1365-8711.2003.06820.x.
- ^ Seligman, Courtney. "New General Catalogue objects: NGC 7000 - 7049". cseligman.com. Retrieved 14 March 2017.
External links
[edit]- NGC 7048 Archived 2010-01-17 at the Wayback Machine
- NGC 7048 from Kopernik.org
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