NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-20 T07:36:37 PDT
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Redshift data point(s) for object NGC 7421

8 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   1792   9   0.005979   0.000029   2006HIPAS.C...0000:
1 21-cm 1792   9   0.005979   0.000029   2006HIPAS.C...0000:
2 21-cm HI line 1832   17   0.006111   0.000057   1991RC3.9.C...0000d
3 Optical 1824   27   0.006084   0.000090   1991ApJS...75..935d
4 Optical 1824   27   0.006084   0.000090   1992CORV..C...0000F
5 Optical 1824   36   0.006084   0.000120   1998AJ....116....1D
6 Optical lines 1830   37   0.006104   0.000123   1991RC3.9.C...0000d
7 Optical 1760   45   0.005871   0.000150   20096dF...C...0000J
8 Optical 1833   56   0.006114   0.000187   1992CORV..C...0000F

Detailed information for each entry

No. 1
Name in publication  : HIPASS J2257-37               
Coordinates          : 225704.5                 -372136          J2000
Features targeted    : 21-cm                         
Velocity or redshift :  1792.6         km/s                     z=   0.005979
Uncertainty          : +/-8.6                                   +/-  0.000029
Unc. Significance    : estimated error
Reference Code       : 2006HIPAS.C...0000:

Measurement Mode     :
    Spectral range   : Radio
    Spectrograph     : Heterodyne receiver(e.g., 21-cm)
    Features         : 1 Emission lines
    Technique        : Mid-point of line profile at 50% lvel
    Spatial mode     : Redshift is systemic

Reference Frame      : Heliocentric velocity or redshift
Qualifiers           : From new, raw data

NED Comment          :                                         



No. 2 Name in publication : ESO 346- G 017 Coordinates : 225406.6 -373647 B1950 Features targeted : 21-cm HI line Velocity or redshift : 1832 km/s z= 0.006111 Uncertainty : +/-17 +/- 0.000057 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Radio Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 3 Name in publication : ESO 346- G 017 Coordinates : 225406. -3736.9 B1950 Features targeted : Optical Velocity or redshift : 1824 km/s z= 0.006084 Uncertainty : +/-27 +/- 0.000090 Unc. Significance : estimated error Reference Code : 1991ApJS...75..935d Measurement Mode : Spectral range : Optical Features : Both absorption and emission lines Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment :


No. 4 Name in publication : NGC 7421 Coordinates : 225406.6 -373647. B1950 Features targeted : Optical Velocity or redshift : 1824 km/s z= 0.006084 Uncertainty : +/-27 +/- 0.000090 Unc. Significance : uncertainty Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1989AJ.....97..315d


No. 5 Name in publication : GSC 7511 00195 Coordinates : 225406.1 -373653. B1950 Features targeted : Optical Velocity or redshift : 1824 km/s z= 0.006084 Uncertainty : +/-36 +/- 0.000120 Unc. Significance : internal error Reference Code : 1998AJ....116....1D Measurement Mode : Spectral range : Optical Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment :


No. 6 Name in publication : ESO 346- G 017 Coordinates : 225406.6 -373647 B1950 Features targeted : Optical lines Velocity or redshift : 1830 km/s z= 0.006104 Uncertainty : +/-37 +/- 0.000123 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 7 Name in publication : 6dF J2256542-372050 Coordinates : 225654.33 -372050.1 J2000 Features targeted : Optical Velocity or redshift : 1760 km/s z= 0.005871 Uncertainty : +/-45 +/- 0.000150 Unc. Significance : uncertainty Reference Code : 20096dF...C...0000J Measurement Mode : Spectral range : Optical Spectrograph : Fiber-optic feed Features : Both absorption and emission lines Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment :


No. 8 Name in publication : NGC 7421 Coordinates : 225406.6 -373647. B1950 Features targeted : Optical Velocity or redshift : 1833 km/s z= 0.006114 Uncertainty : +/-56 +/- 0.000187 Unc. Significance : uncertainty Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1981A&A....95....1W



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