NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-21 T11:23:10 PDT
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Spectral Energy Distribution (SED) for NGC 1251:

9 Data Points
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Photometric Data --- Published and Homogenized [Frequency, Flux Density] Units

  Published UnitsHomogenized Units [Frequency, Flux Density]  
No.Observed PassbandMeasurementUncertaintyUnitsFreq (Hz)MeasurementUncertaintyUnitsModeAperture/QualifiersReference CodeNo.
1 FUV (GALEX) AB ... >20.9078 mag 1.95E+15 < 1.57E-05 Jy Broad-band upper limit inside NUV Kron aperture 2012GASC..C...0000S 1
2 NUV (GALEX) AB 18.8505 +/- 0.0513447 mag 1.29E+15 1.05E-04 +/- 4.95E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 20.0221 +/- 0.0924207 mag 1.29E+15 3.56E-05 +/- 3.03E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 3
4 J (2MASS/CTIO) 12.868 +/- 0.01 mag 2.43E+14 1.14E-02 +/- 1.05E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 4
5 J (2MASS/CTIO) 12.863 +/- 0.029 mag 2.43E+14 1.14E-02 +/- 3.05E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 5
6 H (2MASS/CTIO) 12.489 +/- 0.027 mag 1.80E+14 1.03E-02 +/- 2.57E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 6
7 H (2MASS/CTIO) 12.486 +/- 0.031 mag 1.80E+14 1.04E-02 +/- 2.96E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 7
8 K_s (2MASS/CTIO) 12.395 +/- 0.03 mag 1.39E+14 7.35E-03 +/- 2.03E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 8
9 K_s (2MASS/CTIO) 12.406 +/- 0.03 mag 1.39E+14 7.27E-03 +/- 2.01E-04 Jy Broad-band Profile-fit 2006AJ....131.1163S 9


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    : >20.9078     mag                  < 1.57E-31 W m^-2^ Hz^-1^      
Uncertainty    :
Significance   : 3 sigma
Freq or Vel.   : 1538.6       A            (OBS   )= 1.95E+15 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 48.538384701767 1.4569791773822 (J2000)
Spatial mode   : Flux integrated from map
Notes          : From new raw data
Qualifiers     : upper limit inside NUV Kron aperture    

No. 2 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 18.8505 mag = 1.05E-30 W m^-2^ Hz^-1^ Uncertainty : 0.0513447 mag = 4.95E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 48.538384701767 1.4569791773822 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 3 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 20.0221 mag = 3.56E-31 W m^-2^ Hz^-1^ Uncertainty : 0.0924207 mag = 3.03E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 48.538384701767 1.4569791773822 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 4 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.868 mag = 1.14E-28 W m^-2^ Hz^-1^ Uncertainty : 0.01 mag = 1.05E-30 Significance : uncertainty Freq or Vel. : 1.235 microns (OBS )= 2.43E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 5 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.863 mag = 1.14E-28 W m^-2^ Hz^-1^ Uncertainty : 0.029 mag = 3.05E-30 Significance : uncertainty Freq or Vel. : 1.235 microns (OBS )= 2.43E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit
No. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.489 mag = 1.03E-28 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 2.57E-30 Significance : uncertainty Freq or Vel. : 1.662 microns (OBS )= 1.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit
No. 7 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 12.486 mag = 1.04E-28 W m^-2^ Hz^-1^ Uncertainty : 0.031 mag = 2.96E-30 Significance : uncertainty Freq or Vel. : 1.662 microns (OBS )= 1.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 8 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.395 mag = 7.35E-29 W m^-2^ Hz^-1^ Uncertainty : 0.03 mag = 2.03E-30 Significance : uncertainty Freq or Vel. : 2.159 microns (OBS )= 1.39E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 9 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 12.406 mag = 7.27E-29 W m^-2^ Hz^-1^ Uncertainty : 0.03 mag = 2.01E-30 Significance : uncertainty Freq or Vel. : 2.159 microns (OBS )= 1.39E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit

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