SSTGFLS J222557+601148

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SSTGFLS J222557+601148
Emission nebula
Planetary nebula
Observation data: J2000.0 epoch
Right ascension22h 25m 57s[1]
Declination60° 11.8′[1]
Distance2000–3000[2] pc
ConstellationCepheus
Notable featuresOriginally misclassified as a supernova remnant[2]
DesignationsEQ J222557+601158
See also: Lists of nebulae

SSTGFLS J222557+601148 is a planetary nebula in the constellation Cepheus. Located between 2000 and 3000 parsecs distant from Earth, it was originally classified in 2006 as a supernova remnant. Thought to be the first supernova remnant first detected in the infrared wavelengths,[1] the spectrum and properties of the object did not match up well with that of a typical supernova remnant, and it was reclassified as a planetary nebula in 2010. A candidate central star has been identified, with an apparent infrared magnitude of 22.4.[2]

References[edit]

  1. 1.0 1.1 1.2 "Tentative Discovery of a New Supernova Remnant in Cepheus: Unveiling an Elusive Shell in the Spitzer Galactic First Look Survey". The Astrophysical Journal 640: L179–L182. arXiv:astro-ph/0602552. Bibcode 2006ApJ...640L.179M. doi:10.1086/503669.
  2. 2.0 2.1 2.2 "THE NATURE OF THE STRONG 24 μm SPITZER SOURCE J222557+601148: NOT A YOUNG GALACTIC SUPERNOVA REMNANT". The Astronomical Journal 139: 2595–2599. arXiv:1004.3293. Bibcode 2010AJ....139.2595F. doi:10.1088/0004-6256/139/6/2595.


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