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Date and Time of the Query: 2019-04-23 T09:45:37 PDT
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Spectral Energy Distribution (SED) for NGC 6654A:

26 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 B (m_B) 13.54 +/- 0.18 mag 6.81E+14 1.63E-02 +/- 2.95E-03 Jy Broad-band 1991RC3.9.C...0000d 1
2 B (m_B^0) 12.47 ... mag 6.81E+14 4.38E-02 ... Jy Broad-band 1991RC3.9.C...0000d 2
3 m_p 13.6 +/- 0.4 mag 6.81E+14 1.55E-02 +/- 6.89E-03 Jy Broad-band 1968CGCG4.C...0000Z 3
4 R (Johnson) (JKT) 12.88 +/- 0.04 mag 4.70E+14 2.04E-02 +/- 7.50E-04 Jy Broad-band 2004A&A...414...23J 4
5 H{alpha}+[NII] (JKT) 10.2E-16 +/- 1.02E-16 W/m^2^ 4.56E+14 1.02E+11 +/- 1.02E+10 Jy-Hz Line 2004A&A...414...23J 5
6 J 13.288 +/- 0.065 mag 2.40E+14 7.70E-03 +/- 4.75E-04 Jy Broad-band 61.4 x 13.5 arcsec integration area. 20032MASX.C.......: 6
7 J 13.138 +/- 0.078 mag 2.40E+14 8.85E-03 +/- 6.59E-04 Jy Broad-band 20032MASX.C.......: 7
8 J_14arcsec (2MASS) 14.412 +/- 0.066 mag 2.40E+14 2.74E-03 +/- 1.71E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 8
9 H 12.821 +/- 0.000 mag 1.82E+14 7.62E-03 +/- 0.00E+00 Jy Broad-band 20032MASX.C.......: 9
10 H_14arcsec (2MASS) 14.509 +/- 0.111 mag 1.82E+14 1.61E-03 +/- 1.73E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 10
11 K_s 12.266 +/- 0.125 mag 1.38E+14 8.27E-03 +/- 1.01E-03 Jy Broad-band 61.4 x 13.5 arcsec integration area. 20032MASX.C.......: 11
12 K_s 11.932 +/- 0.114 mag 1.38E+14 1.13E-02 +/- 1.25E-03 Jy Broad-band 20032MASX.C.......: 12
13 K_s_14arcsec (2MASS) 13.428 +/- 0.116 mag 1.38E+14 2.84E-03 +/- 3.20E-04 Jy Broad-band 14.0 x 14.0 arcsec aperture. 20032MASX.C.......: 13
14 12 microns (IRAS) 8.391E-02 +/- 24 % Jy 2.50E+13 8.39E-02 +/- 2.01E-02 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 14
15 25 microns (IRAS) 1.371E-01 +/- 17 % Jy 1.20E+13 1.37E-01 +/- 1.43E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 15
16 60 microns (IRAS) 1.263E+00 +/- 6 % Jy 5.00E+12 1.26E+00 +/- 7.58E-02 Jy Broad-band IRAS quality flag = 3 1990IRASF.C...0000M 16
17 100 microns (IRAS) 2.305E+00 +/- 11 % Jy 3.00E+12 2.31E+00 +/- 2.54E-01 Jy Broad-band IRAS quality flag = 2 1990IRASF.C...0000M 17
18 170 microns (ISO) 1.73 +/- 30 % Jy 1.76E+12 1.73E+00 +/- 5.19E-01 Jy Broad-band 2004A&A...422...39S 18
19 HI (21 cm line) 14.30 +/- 0.10 m_21 mag 1.42E+09 8.32E+04 +/- 8.03E+03 Jy-Hz Line m_21 equiv. to S(HI) = 8.318E-22 W m^-2 1991RC3.9.C...0000d 19
20 HI 21 cm line 15.71 ... Jy km s^-1^ 1.42E+09 7.40E+04 ... Jy-Hz Line 2005ApJS..160..149S 20
21 HI 21 cm line 16.16 ... Jy km s^-1^ 1.42E+09 7.61E+04 ... Jy-Hz Line Corrected line flux 2005ApJS..160..149S 21
22 HI 21 cm line 18.27 +/- 1.85 Jy km s^-1^ 1.42E+09 8.61E+04 +/- 8.72E+03 Jy-Hz Line Self-absorption corrected line flux 2005ApJS..160..149S 22
23 HI (observed) 21.61 +/- 1.75 Jy km s^-1^ 1.42E+09 1.01E+05 +/- 8.22E+03 Jy-Hz Line 1992ApJS...81....5S 23
24 HI (corrected) 21.87 +/- 1.79 Jy km s^-1^ 1.42E+09 1.03E+05 +/- 8.40E+03 Jy-Hz Line 1992ApJS...81....5S 24
25 1.4GHz 11.9 +/- 1.5 milliJy 1.40E+09 1.19E-02 +/- 1.50E-03 Jy Broad-band 1998AJ....115.1693C 25
26 1.4 GHz (VLA) 10.2 ... milliJy 1.40E+09 1.02E-02 ... Jy Broad-band 2002AJ....124..675C 26


Detailed Information for Each Entry

 No. 1
Reference Code : 1991RC3.9.C...0000d
Freq. targeted : B (m_B)             
Measurement    :  13.54       mag                  = 1.64E-28 W m^-2^ Hz^-1^
Uncertainty    :  0.18        mag                  = 2.95E-29
Significance   : rms uncertainty
Freq or Vel.   : 4400         A            (OBS   )= 6.81E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 184034.3        +733155 (B1950)
Spatial mode   : Multiple methods
Notes          : Homogenized from new and previously published data; Standard
                 Johnson UBVRI filters assumed
Qualifiers     :                                         

No. 2 Reference Code : 1991RC3.9.C...0000d Freq. targeted : B (m_B^0) Measurement : 12.47 mag = 4.38E-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: 184034.3 +733155 (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. 3 Reference Code : 1968CGCG4.C...0000Z Freq. targeted : m_p Measurement : 13.6 mag = 1.55E-28 W m^-2^ Hz^-1^ Uncertainty : 0.4 mag = 6.89E-29 Significance : rms noise Freq or Vel. : 4400 A (OBS )= 6.81E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 184024.0 +733200. (B1950) Spatial mode : Estimated by eye Notes : From new raw data Qualifiers :
No. 4 Reference Code : 2004A&A...414...23J Freq. targeted : R (Johnson) (JKT) Measurement : 12.88 mag = 2.04E-28 W m^-2^ Hz^-1^ Uncertainty : 0.04 mag = 7.50E-30 Significance : uncertainty Freq or Vel. : 6373 A (OBS )= 4.70E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 5 Reference Code : 2004A&A...414...23J Freq. targeted : H{alpha}+[NII] (JKT) Measurement : 10.2E-16 W/m^2^ = 1.02E-15 W m^-2^ Uncertainty : 1.02E-16 W/m^2^ = 1.02E-16 Significance : uncertainty Freq or Vel. : 6574 A (REST )= 4.56E+14 Hz Frequency mode : Line measurement; flux integrated over line Coord. targeted: Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 6 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 13.288 mag = 7.70E-29 W m^-2^ Hz^-1^ Uncertainty : 0.065 mag = 4.75E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 61.4 x 13.5 arcsec integration area.
No. 7 Reference Code : 20032MASX.C.......: Freq. targeted : J Measurement : 13.138 mag = 8.85E-29 W m^-2^ Hz^-1^ Uncertainty : 0.078 mag = 6.59E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 8 Reference Code : 20032MASX.C.......: Freq. targeted : J_14arcsec (2MASS) Measurement : 14.412 mag = 2.74E-29 W m^-2^ Hz^-1^ Uncertainty : 0.066 mag = 1.71E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.25 microns (OBS )= 2.40E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 9 Reference Code : 20032MASX.C.......: Freq. targeted : H Measurement : 12.821 mag = 7.62E-29 W m^-2^ Hz^-1^ Uncertainty : 0.000 mag = 0.00E+00 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (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 : 14.509 mag = 1.61E-29 W m^-2^ Hz^-1^ Uncertainty : 0.111 mag = 1.73E-30 Significance : 1 sigma uncert. Freq or Vel. : 1.65 microns (OBS )= 1.82E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 11 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 12.266 mag = 8.27E-29 W m^-2^ Hz^-1^ Uncertainty : 0.125 mag = 1.01E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 61.4 x 13.5 arcsec integration area.
No. 12 Reference Code : 20032MASX.C.......: Freq. targeted : K_s Measurement : 11.932 mag = 1.13E-28 W m^-2^ Hz^-1^ Uncertainty : 0.114 mag = 1.25E-29 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers :
No. 13 Reference Code : 20032MASX.C.......: Freq. targeted : K_s_14arcsec (2MASS) Measurement : 13.428 mag = 2.84E-29 W m^-2^ Hz^-1^ Uncertainty : 0.116 mag = 3.20E-30 Significance : 1 sigma uncert. Freq or Vel. : 2.17 microns (OBS )= 1.38E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: 183927.11 +733442.0 (J2000) Spatial mode : Flux in fixed aperture Notes : From new raw data; Corrected for contaminating sources Qualifiers : 14.0 x 14.0 arcsec aperture.
No. 14 Reference Code : 1990IRASF.C...0000M Freq. targeted : 12 microns (IRAS) Measurement : 8.391E-02 Jy = 8.39E-28 W m^-2^ Hz^-1^ Uncertainty : 24 % Jy = 2.01E-28 Significance : uncertainty Freq or Vel. : 12 microns (OBS )= 2.50E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 184037.0 +733158 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 15 Reference Code : 1990IRASF.C...0000M Freq. targeted : 25 microns (IRAS) Measurement : 1.371E-01 Jy = 1.37E-27 W m^-2^ Hz^-1^ Uncertainty : 17 % Jy = 1.43E-28 Significance : uncertainty Freq or Vel. : 25 microns (OBS )= 1.20E+13 Hz Frequency mode : Broad-band measurement Coord. targeted: 184037.0 +733158 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 16 Reference Code : 1990IRASF.C...0000M Freq. targeted : 60 microns (IRAS) Measurement : 1.263E+00 Jy = 1.26E-26 W m^-2^ Hz^-1^ Uncertainty : 6 % Jy = 7.58E-28 Significance : uncertainty Freq or Vel. : 60 microns (OBS )= 5.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 184037.0 +733158 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 3
No. 17 Reference Code : 1990IRASF.C...0000M Freq. targeted : 100 microns (IRAS) Measurement : 2.305E+00 Jy = 2.31E-26 W m^-2^ Hz^-1^ Uncertainty : 11 % Jy = 2.54E-27 Significance : uncertainty Freq or Vel. : 100 microns (OBS )= 3.00E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 184037.0 +733158 (B1950) Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : IRAS quality flag = 2
No. 18 Reference Code : 2004A&A...422...39S Freq. targeted : 170 microns (ISO) Measurement : 1.73 Jy = 1.73E-26 W m^-2^ Hz^-1^ Uncertainty : 30 % Jy = 5.19E-27 Significance : uncertainty Freq or Vel. : 170 microns (OBS )= 1.76E+12 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 39 21.11 +73 35 26.9 (J2000) Spatial mode : Integrated from scans Notes : Averaged from previously published data Qualifiers :
No. 19 Reference Code : 1991RC3.9.C...0000d Freq. targeted : HI (21 cm line) Measurement : 14.30 m_21 mag = 8.32E-22 W m^-2^ Uncertainty : 0.10 m_21 mag = 8.03E-23 Significance : rms uncertainty Freq or Vel. : 21 cm (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 184034.3 +733155 (B1950) Spatial mode : Multiple methods Notes : Homogenized from new and previously published data Qualifiers : m_21 equiv. to S(HI) = 8.318E-22 W m^-2
No. 20 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 15.71 Jy km s^-1^ = 7.40E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1584 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 18 39 25.3 +73 34 48 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 21 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 16.16 Jy km s^-1^ = 7.61E-22 W m^-2^ Uncertainty : Jy km s^-1^ = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1584 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 18 39 25.3 +73 34 48 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected line flux
No. 22 Reference Code : 2005ApJS..160..149S Freq. targeted : HI 21 cm line Measurement : 18.27 Jy km s^-1^ = 8.61E-22 W m^-2^ Uncertainty : 1.85 Jy km s^-1^ = 8.72E-23 Significance : uncertainty Freq or Vel. : 1584 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 18 39 25.3 +73 34 48 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Self-absorption corrected line flux
No. 23 Reference Code : 1992ApJS...81....5S Freq. targeted : HI (observed) Measurement : 21.61 Jy km s^-1^ = 1.01E-21 W m^-2^ Uncertainty : 1.75 Jy km s^-1^ = 8.22E-23 Significance : internal error Freq or Vel. : 1596 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 184034.6 +733158 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 24 Reference Code : 1992ApJS...81....5S Freq. targeted : HI (corrected) Measurement : 21.87 Jy km s^-1^ = 1.03E-21 W m^-2^ Uncertainty : 1.79 Jy km s^-1^ = 8.40E-23 Significance : internal error Freq or Vel. : 1596 km s^-1^ (REST )= 1.42E+09 Hz Frequency mode : Line measurement; flux integrated over line; lines measured in emission Coord. targeted: 184034.6 +733158 (B1950) Spatial mode : Integrated from scans; Pointing corrected Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 25 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 11.9 milliJy = 1.19E-28 W m^-2^ Hz^-1^ Uncertainty : 1.5 milliJy = 1.50E-29 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 39 25.91 +73 34 42.8 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 26 Reference Code : 2002AJ....124..675C Freq. targeted : 1.4 GHz (VLA) Measurement : 10.2 milliJy = 1.02E-28 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1.4 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux integrated from map Notes : Averaged from previously published data Qualifiers :

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