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{{Short description|Planetary nebula in the constellation Cygnus}}
[[File:NGC 7048.jpg|NGC 7048.jpg]]
{{Infobox nebula
|name = NGC 7048
|image = NGC7048 - Noao-n7048robinson.jpg
|caption =
|credit =
|type = planetary
|type2 =
|epoch = [[J2000]]
|subtype =
|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>
|dec = {{DEC|+46|17|16.1}}<ref name=Simbad/>
|dist_ly = 5260
|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>
|dist_z =
|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>
|appdia = 1.02{{prime}}
|constellation = [[Cygnus (constellation)|Cygnus]]
|radius_ly =
|radius_pc =
|dimensions =
|absmag_v =
|names = PK 088-01 1, PN ARO 41, [[IRAS]] 21124+4604
}}
'''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>


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>
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. The nebula is slightly brighter along the west and east sides. This planetary nebula is rated at magnitude 12.1. NGC 7048 was discovered by [[Jean Marie Edouard Stephan]] on October 1878 using a 31.5-inch reflector.

== See also ==
* [[List of NGC objects (7001–7840)]]

==References==
{{reflist}}


==External links==
==External links==
* [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 }}
* [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]

{{Ngc75}}
{{Cygnus (constellation)}}


[[Category:Planetary nebulae]]
[[Category:Planetary nebulae]]
[[Category:NGC objects]]
[[Category:NGC objects|7048]]
[[Category:Cygnus constellation]]
[[Category:Cygnus (constellation)]]
[[Category:Astronomical objects discovered in 1878|18781019]]
[[Category:Discoveries by Édouard Stephan]]


{{nebula-stub}}
[[az:NGC 7048]]
[[eo:NGC 7048]]
[[ru:NGC 7048]]
[[sk:NGC 7048]]
[[sr:NGC 7048]]
[[tr:NGC 7048]]
[[uk:NGC 7048]]

Latest revision as of 02:08, 8 October 2024

NGC 7048
Emission nebula
Planetary nebula
Observation data: J2000 epoch
Right ascension21h 14m 15.25s[1]
Declination+46° 17′ 16.1″[1]
Distance5260 ly   (1613[2] pc)
Apparent magnitude (V)12.1[3]
Apparent diameter1.02
ConstellationCygnus
DesignationsPK 088-01 1, PN ARO 41, IRAS 21124+4604
See also: Lists of nebulae

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]
  1. ^ a b "NGC 7048". simbad.u-strasbg.fr. Retrieved 31 January 2022.
  2. ^ 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.
  3. ^ a b "Revised NGC Data for NGC 7048 - Hartmut Frommert - SEDS". seds.org. Retrieved 14 March 2017.
  4. ^ 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.
  5. ^ Seligman, Courtney. "New General Catalogue objects: NGC 7000 - 7049". cseligman.com. Retrieved 14 March 2017.
[edit]