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Date and Time of the Query: 2019-08-24 T04:46:35 PDT
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Redshift data point(s) for object NGC 4240

3 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   1990   17   0.006638   0.000057   2008AJ....135.2424O
1 Optical 1975   27   0.006588   0.000090   2003AJ....126.2268W
2 Optical 1943   31   0.006481   0.000103   1992AJ....103...11F
3 Optical 1959   45   0.006535   0.000150   20096dF...C...0000J

Detailed information for each entry

No. 1
Name in publication  : NGC 4240                      
Coordinates          : 121724.3                 -095707.         J2000
Features targeted    : Optical                       
Velocity or redshift :  1975           km/s                     z=   0.006588
Uncertainty          : +/-27                                    +/-  0.000090
Unc. Significance    : uncertainty
Reference Code       : 2003AJ....126.2268W

Measurement Mode     :
    Spectral range   : Optical
    Spectrograph     : Long-slit spectrum
    Technique        : Cross-correlation fit to template spectrum
    Spatial mode     : Redshift is for nucleus only

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

NED Comment          :                                         



No. 2 Name in publication : NGC 4240 Coordinates : 121448. -094000. B1950 Features targeted : Optical Velocity or redshift : 1943 km/s z= 0.006481 Uncertainty : +/-31 +/- 0.000103 Unc. Significance : uncertainty Reference Code : 1992AJ....103...11F Measurement Mode : Spectral range : Optical Spectrograph : Long-slit spectrum Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is for nucleus only Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment :


No. 3 Name in publication : 6dF J1217243-095706 Coordinates : 121724.36 -095705.9 J2000 Features targeted : Optical Velocity or redshift : 1959 km/s z= 0.006535 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 :



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