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 initially detected in 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

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  1. ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).



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