NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-19 T20:28:58 PDT
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Spectral Energy Distribution (SED) for NGC 4774:

20 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 U (U_T) 14.71 +/- 0.21 mag 8.19E+14 2.36E-03 +/- 4.94E-04 Jy Broad-band 1991RC3.9.C...0000d 1
2 U (U_T^0) 14.45 ... mag 8.19E+14 3.00E-03 ... Jy Broad-band 1991RC3.9.C...0000d 2
3 B (B_T) 14.80 +/- 0.20 mag 6.81E+14 5.12E-03 +/- 1.04E-03 Jy Broad-band 1991RC3.9.C...0000d 3
4 B (m_B) 14.80 +/- 0.20 mag 6.81E+14 5.12E-03 +/- 1.04E-03 Jy Broad-band 1991RC3.9.C...0000d 4
5 B (B_T^0) 14.62 ... mag 6.81E+14 6.05E-03 ... Jy Broad-band 1991RC3.9.C...0000d 5
6 m_p 14.6 +/- 0.4 mag 6.81E+14 6.16E-03 +/- 2.74E-03 Jy Broad-band 1966CGCG3.C...0000Z 6
7 B (OAGH) 14.95 +/- 0.04 mag 6.81E+14 4.46E-03 +/- 1.64E-04 Jy Broad-band 2008AJ....136.1259R 7
8 V (V_T^0) 14.25 ... mag 5.42E+14 7.26E-03 ... Jy Broad-band 1991RC3.9.C...0000d 8
9 V (V_T) 14.32 +/- 0.20 mag 5.42E+14 6.81E-03 +/- 1.39E-03 Jy Broad-band 1991RC3.9.C...0000d 9
10 V (OAGH) 14.27 +/- 0.04 mag 5.42E+14 7.13E-03 +/- 2.94E-04 Jy Broad-band 2008AJ....136.1259R 10
11 R (OAGH) 14.07 +/- 0.06 mag 4.68E+14 7.25E-03 +/- 3.78E-04 Jy Broad-band 2008AJ....136.1259R 11
12 H{alpha}+[NII] -12.43 +/- 0.04 log(erg/cm^2^/s) 4.56E+14 3.72E+10 +/- 4.28E+09 Jy-Hz Line 2008AJ....136.1259R 12
13 I (OAGH) 13.37 +/- 0.05 mag 3.79E+14 1.14E-02 +/- 4.83E-04 Jy Broad-band 2008AJ....136.1259R 13
14 J (OAN-SPM) 12.25 +/- 0.06 mag 2.35E+14 2.00E-02 +/- 1.06E-03 Jy Broad-band 2008AJ....136.1259R 14
15 H (OAN-SPM) 11.58 +/- 0.06 mag 1.79E+14 2.39E-02 +/- 1.26E-03 Jy Broad-band 2008AJ....136.1259R 15
16 K (OAN-SPM) 11.21 +/- 0.05 mag 1.41E+14 2.19E-02 +/- 1.09E-03 Jy Broad-band 2008AJ....136.1259R 16
17 12 microns (IRAS) 1.642E-01 +/- 19 % Jy 2.50E+13 1.64E-01 +/- 3.12E-02 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 17
18 25 microns (IRAS) 2.185E-01 +/- 18 % Jy 1.20E+13 2.18E-01 +/- 2.96E-02 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 18
19 60 microns (IRAS) 1.705E+00 +/- 7 % Jy 5.00E+12 1.71E+00 +/- 1.19E-01 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 19
20 100 microns (IRAS) 3.009E+00 +/- 8 % Jy 3.00E+12 3.01E+00 +/- 2.41E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 20


Detailed Information for Each Entry

 No. 1
Reference Code : 1991RC3.9.C...0000d
Freq. targeted : U (U_T)             
Measurement    :  14.71       mag                  = 2.36E-29 W m^-2^ Hz^-1^
Uncertainty    :  0.21        mag                  = 4.94E-30
Significance   : rms uncertainty
Freq or Vel.   : 3660         A            (OBS   )= 8.19E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 125044.2        +37 523 (B1950)
Spatial mode   : From multi-aperture data
Notes          : Homogenized from new and previously published data; Standard
                 Johnson UBVRI filters assumed
Qualifiers     :                                         

No. 2 Reference Code : 1991RC3.9.C...0000d Freq. targeted : U (U_T^0) Measurement : 14.45 mag = 3.00E-29 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 3660 A (OBS )= 8.19E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125044.2 +37 523 (B1950) Spatial mode : From multi-aperture data 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. 3 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (B_T) Measurement : 14.80 mag = 5.12E-29 W m^-2^ Hz^-1^ Uncertainty : 0.20 mag = 1.04E-29 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125044.2 +37 523 (B1950) Spatial mode : From multi-aperture data Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 4 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B) Measurement : 14.80 mag = 5.12E-29 W m^-2^ Hz^-1^ Uncertainty : 0.20 mag = 1.04E-29 Significance : rms uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125044.2 +37 523 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 5 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (B_T^0) Measurement : 14.62 mag = 6.05E-29 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: 125044.2 +37 523 (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. 6 Reference Code : 1966CGCG3.C...0000Z Freq. targeted : m_p Measurement : 14.6 mag = 6.16E-29 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 2.74E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125048.0 +370500. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 7 Reference Code : 2008AJ....136.1259R Freq. targeted : B (OAGH) Measurement : 14.95 mag = 4.46E-29 W m^-2^ Hz^-1^ Uncertainty : 0.04 mag = 1.64E-30 Significance : uncertainty Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 8 Reference Code : 1991RC3.9.C...0000d Freq. targeted : V (V_T^0) Measurement : 14.25 mag = 7.26E-29 W m^-2^ Hz^-1^ Uncertainty : mag = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 5530 A (OBS )= 5.42E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125044.2 +37 523 (B1950) Spatial mode : From multi-aperture data 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. 9 Reference Code : 1991RC3.9.C...0000d Freq. targeted : V (V_T) Measurement : 14.32 mag = 6.81E-29 W m^-2^ Hz^-1^ Uncertainty : 0.20 mag = 1.39E-29 Significance : rms uncertainty Freq or Vel. : 5530 A (OBS )= 5.42E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 125044.2 +37 523 (B1950) Spatial mode : From multi-aperture data Notes : Homogenized from new and previously published data; Standard Johnson UBVRI filters assumed Qualifiers :
No. 10 Reference Code : 2008AJ....136.1259R Freq. targeted : V (OAGH) Measurement : 14.27 mag = 7.13E-29 W m^-2^ Hz^-1^ Uncertainty : 0.04 mag = 2.94E-30 Significance : uncertainty Freq or Vel. : 5530 A (OBS )= 5.42E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data; derived from a flux in a different band and a color Qualifiers :
No. 11 Reference Code : 2008AJ....136.1259R Freq. targeted : R (OAGH) Measurement : 14.07 mag = 7.25E-29 W m^-2^ Hz^-1^ Uncertainty : 0.06 mag = 3.78E-30 Significance : uncertainty Freq or Vel. : 6400 A (OBS )= 4.68E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data; derived from a flux in a different band and a color Qualifiers :
No. 12 Reference Code : 2008AJ....136.1259R Freq. targeted : H{alpha}+[NII] Measurement : -12.43 log(erg/cm^2^/s) = 3.72E-16 W m^-2^ Uncertainty : 0.04 log(erg/cm^2^/s) = 4.28E-17 Significance : uncertainty Freq or Vel. : 6573.50 A (REST )= 4.56E+14 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 13 Reference Code : 2008AJ....136.1259R Freq. targeted : I (OAGH) Measurement : 13.37 mag = 1.14E-28 W m^-2^ Hz^-1^ Uncertainty : 0.05 mag = 4.83E-30 Significance : uncertainty Freq or Vel. : 7900 A (OBS )= 3.79E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data; derived from a flux in a different band and a color Qualifiers :
No. 14 Reference Code : 2008AJ....136.1259R Freq. targeted : J (OAN-SPM) Measurement : 12.25 mag = 2.00E-28 W m^-2^ Hz^-1^ Uncertainty : 0.06 mag = 1.06E-29 Significance : uncertainty Freq or Vel. : 1.275 microns (OBS )= 2.35E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data; derived from a flux in a different band and a color Qualifiers :
No. 15 Reference Code : 2008AJ....136.1259R Freq. targeted : H (OAN-SPM) Measurement : 11.58 mag = 2.39E-28 W m^-2^ Hz^-1^ Uncertainty : 0.06 mag = 1.26E-29 Significance : uncertainty Freq or Vel. : 1.672 microns (OBS )= 1.79E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data; derived from a flux in a different band and a color Qualifiers :
No. 16 Reference Code : 2008AJ....136.1259R Freq. targeted : K (OAN-SPM) Measurement : 11.21 mag = 2.19E-28 W m^-2^ Hz^-1^ Uncertainty : 0.05 mag = 1.08E-29 Significance : uncertainty Freq or Vel. : 2.124 microns (OBS )= 1.41E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data; derived from a flux in a different band and a color Qualifiers :
No. 17 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : 1.642E-01 Jy = 1.64E-27 W m^-2^ Hz^-1^ Uncertainty : 19 % Jy = 3.12E-28 Significance : uncertainty Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 125043.4 +370531 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 18 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : 2.185E-01 Jy = 2.18E-27 W m^-2^ Hz^-1^ Uncertainty : 18 % Jy = 2.96E-28 Significance : uncertainty Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 125043.4 +370531 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 19 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 1.705E+00 Jy = 1.71E-26 W m^-2^ Hz^-1^ Uncertainty : 7 % Jy = 1.19E-27 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 125043.4 +370531 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 20 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 3.009E+00 Jy = 3.01E-26 W m^-2^ Hz^-1^ Uncertainty : 8 % Jy = 2.41E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 125043.4 +370531 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2

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