NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-25 T03:48:31 PDT
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Spectral Energy Distribution (SED) for NGC 1957:

19 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 ... >20.9020 mag 1.95E+15 < 1.58E-05 Jy Broad-band upper limit inside NUV Kron aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 25.9315 +/- 22.9917 mag 1.95E+15 1.54E-07 +/- 3.26E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 20.4498 +/- 0.265364 mag 1.29E+15 2.40E-05 +/- 5.86E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 21.1380 +/- 0.289648 mag 1.29E+15 1.27E-05 +/- 3.40E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 J (2MASS/CTIO) 12.179 +/- 0.007 mag 2.43E+14 2.14E-02 +/- 1.38E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 5
6 J (2MASS/CTIO) 12.602 +/- 0.062 mag 2.43E+14 1.45E-02 +/- 8.29E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 6
7 J_14arcsec (2MASS) 11.856 +/- 0.007 mag 2.40E+14 2.88E-02 +/- 1.86E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 7
8 J 11.368 +/- 0.021 mag 2.40E+14 4.52E-02 +/- 8.82E-04 Jy Broad-band 40.6 x 34.9 arcsec integration area. 20032MASX.C.......: 8
9 J 11.238 +/- 0.022 mag 2.40E+14 5.09E-02 +/- 1.04E-03 Jy Broad-band 20032MASX.C.......: 9
10 H_14arcsec (2MASS) 11.112 +/- 0.008 mag 1.82E+14 3.68E-02 +/- 2.72E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 10
11 H 10.639 +/- 0.027 mag 1.82E+14 5.68E-02 +/- 1.43E-03 Jy Broad-band 40.6 x 34.9 arcsec integration area. 20032MASX.C.......: 11
12 H 10.535 +/- 0.025 mag 1.82E+14 6.26E-02 +/- 1.46E-03 Jy Broad-band 20032MASX.C.......: 12
13 H (2MASS/CTIO) 11.928 +/- 0.061 mag 1.80E+14 1.73E-02 +/- 9.74E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 13
14 H (2MASS/CTIO) 11.426 +/- 0.008 mag 1.80E+14 2.75E-02 +/- 2.03E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 14
15 K_s (2MASS/CTIO) 11.491 +/- 0.051 mag 1.39E+14 1.69E-02 +/- 7.93E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 15
16 K_s (2MASS/CTIO) 11.154 +/- 0.009 mag 1.39E+14 2.30E-02 +/- 1.91E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 16
17 K_s_14arcsec (2MASS) 10.845 +/- 0.011 mag 1.38E+14 3.06E-02 +/- 3.12E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 17
18 K_s 10.263 +/- 0.036 mag 1.38E+14 5.23E-02 +/- 1.76E-03 Jy Broad-band 20032MASX.C.......: 18
19 K_s 10.382 +/- 0.040 mag 1.38E+14 4.69E-02 +/- 1.76E-03 Jy Broad-band 40.6 x 34.9 arcsec integration area. 20032MASX.C.......: 19


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    : >20.9020     mag                  < 1.58E-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: 83.230097323834 -14.13304095919 (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 : FUV (GALEX) AB Measurement : 25.9315 mag = 1.54E-33 W m^-2^ Hz^-1^ Uncertainty : 22.9917 mag = 3.26E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 83.230097323834 -14.13304095919 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 3 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 20.4498 mag = 2.40E-31 W m^-2^ Hz^-1^ Uncertainty : 0.265364 mag = 5.86E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 83.230097323834 -14.13304095919 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Kron flux in elliptical aperture
No. 4 Reference Code : 2012GASC..C...0000S Freq. targeted : NUV (GALEX) AB Measurement : 21.1380 mag = 1.27E-31 W m^-2^ Hz^-1^ Uncertainty : 0.289648 mag = 3.40E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 83.230097323834 -14.13304095919 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.179 mag = 2.14E-28 W m^-2^ Hz^-1^ Uncertainty : 0.007 mag = 1.38E-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. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.602 mag = 1.45E-28 W m^-2^ Hz^-1^ Uncertainty : 0.062 mag = 8.29E-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; Poor quality
No. 7 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 11.856 mag = 2.88E-28 W m^-2^ Hz^-1^ Uncertainty : 0.007 mag = 1.86E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 8 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.368 mag = 4.52E-28 W m^-2^ Hz^-1^ Uncertainty : 0.021 mag = 8.82E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 40.6 x 34.9 arcsec integration area.
No. 9 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 11.238 mag = 5.09E-28 W m^-2^ Hz^-1^ Uncertainty : 0.022 mag = 1.04E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 10 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 11.112 mag = 3.68E-28 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 2.72E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 11 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.639 mag = 5.68E-28 W m^-2^ Hz^-1^ Uncertainty : 0.027 mag = 1.43E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 40.6 x 34.9 arcsec integration area.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 10.535 mag = 6.26E-28 W m^-2^ Hz^-1^ Uncertainty : 0.025 mag = 1.46E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 13 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.928 mag = 1.73E-28 W m^-2^ Hz^-1^ Uncertainty : 0.061 mag = 9.74E-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; Poor quality
No. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.426 mag = 2.75E-28 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 2.03E-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. 15 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 11.491 mag = 1.69E-28 W m^-2^ Hz^-1^ Uncertainty : 0.051 mag = 7.93E-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; Poor quality
No. 16 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 11.154 mag = 2.30E-28 W m^-2^ Hz^-1^ Uncertainty : 0.009 mag = 1.91E-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. 17 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 10.845 mag = 3.06E-28 W m^-2^ Hz^-1^ Uncertainty : 0.011 mag = 3.12E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 18 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.263 mag = 5.23E-28 W m^-2^ Hz^-1^ Uncertainty : 0.036 mag = 1.76E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 19 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 10.382 mag = 4.69E-28 W m^-2^ Hz^-1^ Uncertainty : 0.040 mag = 1.76E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 053255.21 -140759.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 40.6 x 34.9 arcsec integration area.

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