NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-18 T02:52:32 PDT
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Spectral Energy Distribution (SED) for NGC 1956:

27 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 ... >19.8253 mag 1.95E+15 < 4.26E-05 Jy Broad-band upper limit inside NUV Kron aperture 2012GASC..C...0000S 1
2 FUV (GALEX) AB 23.8661 +/- 2.87790 mag 1.95E+15 1.03E-06 +/- 2.73E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 2
3 NUV (GALEX) AB 19.8484 +/- 0.234857 mag 1.29E+15 4.18E-05 +/- 9.03E-06 Jy Broad-band Kron flux in elliptical aperture 2012GASC..C...0000S 3
4 NUV (GALEX) AB 21.8310 +/- 0.385873 mag 1.29E+15 6.72E-06 +/- 2.39E-06 Jy Broad-band Flux in 7.5 arcsec diameter aperture 2012GASC..C...0000S 4
5 B (Cousins) (B_26) 14.25 +/- 0.09 mag 6.81E+14 8.49E-03 +/- 7.34E-04 Jy Broad-band 1989ESOLV.C...0000L 5
6 B (Cousins) (B_T) 14.05 +/- 0.09 mag 6.81E+14 1.02E-02 +/- 8.82E-04 Jy Broad-band 1989ESOLV.C...0000L 6
7 B (m_B) 14.02 +/- 0.21 mag 6.81E+14 1.05E-02 +/- 2.24E-03 Jy Broad-band 1991RC3.9.C...0000d 7
8 B (Cousins) (B_25) 14.39 +/- 0.09 mag 6.81E+14 7.47E-03 +/- 6.45E-04 Jy Broad-band 1989ESOLV.C...0000L 8
9 B (m_B^0) 13.01 ... mag 6.81E+14 2.66E-02 ... Jy Broad-band 1991RC3.9.C...0000d 9
10 R (Cousins) (R_T) 12.35 +/- 0.09 mag 4.68E+14 3.53E-02 +/- 3.05E-03 Jy Broad-band 1989ESOLV.C...0000L 10
11 R (Cousins) (R_25) 12.66 +/- 0.09 mag 4.68E+14 2.66E-02 +/- 2.30E-03 Jy Broad-band 1989ESOLV.C...0000L 11
12 R (Cousins) (R_26) 12.53 +/- 0.09 mag 4.68E+14 3.00E-02 +/- 2.59E-03 Jy Broad-band 1989ESOLV.C...0000L 12
13 J (2MASS/CTIO) 12.08 +/- 0.007 mag 2.43E+14 2.35E-02 +/- 1.51E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 13
14 J (2MASS/CTIO) 12.387 +/- 0.057 mag 2.43E+14 1.77E-02 +/- 9.29E-04 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 14
15 J_14arcsec (2MASS) 11.436 +/- 0.005 mag 2.40E+14 4.24E-02 +/- 1.96E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 15
16 J 9.766 +/- 0.017 mag 2.40E+14 1.97E-01 +/- 3.12E-03 Jy Broad-band 20032MASX.C.......: 16
17 J 9.886 +/- 0.018 mag 2.40E+14 1.77E-01 +/- 2.96E-03 Jy Broad-band 124.4 x 54.7 arcsec integration area. 20032MASX.C.......: 17
18 H 9.082 +/- 0.021 mag 1.82E+14 2.39E-01 +/- 4.66E-03 Jy Broad-band 124.4 x 54.7 arcsec integration area. 20032MASX.C.......: 18
19 H_14arcsec (2MASS) 10.620 +/- 0.006 mag 1.82E+14 5.79E-02 +/- 3.21E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 19
20 H 8.975 +/- 0.020 mag 1.82E+14 2.63E-01 +/- 4.89E-03 Jy Broad-band 20032MASX.C.......: 20
21 H (2MASS/CTIO) 11.271 +/- 0.008 mag 1.80E+14 3.18E-02 +/- 2.34E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 21
22 H (2MASS/CTIO) 11.433 +/- 0.053 mag 1.80E+14 2.74E-02 +/- 1.34E-03 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 22
23 K_s (2MASS/CTIO) 11.094 +/- 0.049 mag 1.39E+14 2.43E-02 +/- 1.10E-03 Jy Broad-band Profile-fit; Poor quality 2006AJ....131.1163S 23
24 K_s (2MASS/CTIO) 10.967 +/- 0.014 mag 1.39E+14 2.74E-02 +/- 3.53E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 24
25 K_s 8.791 +/- 0.028 mag 1.38E+14 2.03E-01 +/- 5.30E-03 Jy Broad-band 124.4 x 54.7 arcsec integration area. 20032MASX.C.......: 25
26 K_s 8.696 +/- 0.026 mag 1.38E+14 2.22E-01 +/- 5.37E-03 Jy Broad-band 20032MASX.C.......: 26
27 K_s_14arcsec (2MASS) 10.312 +/- 0.008 mag 1.38E+14 5.00E-02 +/- 3.70E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 27


Detailed Information for Each Entry

 No. 1
Reference Code : 2012GASC..C...0000S
Freq. targeted : FUV (GALEX) AB      
Measurement    : >19.8253     mag                  < 4.26E-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: 79.897388559957 -77.72845370142 (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 : 23.8661 mag = 1.03E-32 W m^-2^ Hz^-1^ Uncertainty : 2.87790 mag = 2.73E-32 Significance : uncertainty Freq or Vel. : 1538.6 A (OBS )= 1.95E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 79.897388559957 -77.72845370142 (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 : 19.8484 mag = 4.18E-31 W m^-2^ Hz^-1^ Uncertainty : 0.234857 mag = 9.03E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 79.897388559957 -77.72845370142 (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 : 21.8310 mag = 6.72E-32 W m^-2^ Hz^-1^ Uncertainty : 0.385873 mag = 2.39E-32 Significance : uncertainty Freq or Vel. : 2315.7 A (OBS )= 1.29E+15 Hz Frequency mode : Broad-band measurement Coord. targeted: 79.897388559957 -77.72845370142 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Flux in 7.5 arcsec diameter aperture
No. 5 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_26) Measurement : 14.25 mag = 8.49E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 7.34E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 052204 -7746.7 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_T) Measurement : 14.05 mag = 1.02E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 8.82E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 052204 -7746.7 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 7 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B) Measurement : 14.02 mag = 1.05E-28 W m^-2^ Hz^-1^ Uncertainty : 0.21 mag = 2.24E-29 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 052204.1 -774642 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 8 Reference Code : 1989ESOLV.C...0000L Freq. targeted : B (Cousins) (B_25) Measurement : 14.39 mag = 7.47E-29 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 6.45E-30 Significance : typical accuracy Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 052204 -7746.7 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 13.01 mag = 2.66E-28 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 052204.1 -774642 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Extinction-corrected for internal and Milky Way and K-correction applied; Standard Johnson UBVRI filters assumed Qualifiers :
No. 10 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_T) Measurement : 12.35 mag = 3.53E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 3.05E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 052204 -7746.7 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 11 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_25) Measurement : 12.66 mag = 2.66E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 2.30E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 052204 -7746.7 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1989ESOLV.C...0000L Freq. targeted : R (Cousins) (R_26) Measurement : 12.53 mag = 3.00E-28 W m^-2^ Hz^-1^ Uncertainty : 0.09 mag = 2.59E-29 Significance : typical accuracy Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement; photometric system transformed Coord. targeted: 052204 -7746.7 (B1950) Spatial mode : Modelled datum Notes : From new raw data Qualifiers :
No. 13 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.08 mag = 2.35E-28 W m^-2^ Hz^-1^ Uncertainty : 0.007 mag = 1.51E-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. 14 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/CTIO) Measurement : 12.387 mag = 1.77E-28 W m^-2^ Hz^-1^ Uncertainty : 0.057 mag = 9.29E-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. 15 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 11.436 mag = 4.24E-28 W m^-2^ Hz^-1^ Uncertainty : 0.005 mag = 1.96E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 16 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 9.766 mag = 1.97E-27 W m^-2^ Hz^-1^ Uncertainty : 0.017 mag = 3.12E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 17 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 9.886 mag = 1.77E-27 W m^-2^ Hz^-1^ Uncertainty : 0.018 mag = 2.96E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 124.4 x 54.7 arcsec integration area.
No. 18 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 9.082 mag = 2.39E-27 W m^-2^ Hz^-1^ Uncertainty : 0.021 mag = 4.66E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 124.4 x 54.7 arcsec integration area.
No. 19 Reference Code : 20032MASX.C.......: Freq. targeted : H_14arcsec (2MASS) Measurement : 10.620 mag = 5.79E-28 W m^-2^ Hz^-1^ Uncertainty : 0.006 mag = 3.21E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 20 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 8.975 mag = 2.63E-27 W m^-2^ Hz^-1^ Uncertainty : 0.020 mag = 4.89E-29 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 21 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.271 mag = 3.18E-28 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 2.34E-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. 22 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/CTIO) Measurement : 11.433 mag = 2.74E-28 W m^-2^ Hz^-1^ Uncertainty : 0.053 mag = 1.34E-29 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. 23 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 11.094 mag = 2.43E-28 W m^-2^ Hz^-1^ Uncertainty : 0.049 mag = 1.10E-29 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. 24 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/CTIO) Measurement : 10.967 mag = 2.74E-28 W m^-2^ Hz^-1^ Uncertainty : 0.014 mag = 3.53E-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. 25 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 8.791 mag = 2.03E-27 W m^-2^ Hz^-1^ Uncertainty : 0.028 mag = 5.30E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 124.4 x 54.7 arcsec integration area.
No. 26 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 8.696 mag = 2.22E-27 W m^-2^ Hz^-1^ Uncertainty : 0.026 mag = 5.37E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 27 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 10.312 mag = 5.00E-28 W m^-2^ Hz^-1^ Uncertainty : 0.008 mag = 3.70E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 051935.32 -774343.2 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 14.0 x 14.0 arcsec aperture.

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