NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-21 T02:01:49 PDT
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Redshift data point(s) for object NGC 4021

3 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   10056   52   0.033543   0.000173   1999PASP..111..438F
1 10021   3   0.033428   0.000009   2016SDSSD.C...0000:
2 Optical 10056   52   0.033543   0.000173   2000UZC...C......0F
3 10027     0.033446     2013AJ....146..151O

Detailed information for each entry

No. 1
Name in publication  :                               
Coordinates          :                                                
Features targeted    :                               
Velocity or redshift :  0.033427536                             z=   0.033428
Uncertainty          : +/-9.314706E-6                           +/-  0.000009
Unc. Significance    : uncertainty
Reference Code       : 2016SDSSD.C...0000:

Measurement Mode     :

Reference Frame      : Heliocentric velocity or redshift
Qualifiers           : Uncertain origin

NED Comment          :                                         



No. 2 Name in publication : UZC J115902.6+250500 Coordinates : 115902.6 +250500. J2000 Features targeted : Optical Velocity or redshift : 10056 km/s z= 0.033543 Uncertainty : +/-52 +/- 0.000173 Unc. Significance : uncertainty Reference Code : 2000UZC...C......0F Measurement Mode : Spectral range : Optical Features : Absorption lines Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment :


No. 3 Name in publication : SDSS J115902.58+250459.5 Coordinates : 115902.5891 +250459.570 J2000 Features targeted : Velocity or redshift : [0.0334] z= 0.033446 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2013AJ....146..151O Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :



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