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Date and Time of the Query: 2019-05-19 T23:36:01 PDT
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Redshift data point(s) for object NGC 6721

8 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   4421   25   0.014747   0.000083   1991RC3.9.C...0000d
1 Optical lines 4421   25   0.014747   0.000083   1991RC3.9.C...0000d
2 Optical 4461   29   0.014880   0.000097   2003AJ....126.2268W
3 Optical 4390   31   0.014643   0.000103   20096dF...C...0000J
4 Optical 4386   50   0.014630   0.000167   1992CORV..C...0000F
5 Optical 4386     0.014630     1992CORV..C...0000F
6 Optical 4412     0.014717     1992CORV..C...0000F
7 4463     0.014887     2016AJ....152...50T
8 Optical 4500     0.015010     1992CORV..C...0000F

Detailed information for each entry

No. 1
Name in publication  : ESO 141- G 019                
Coordinates          : 185634.0                 -574942          B1950
Features targeted    : Optical lines                 
Velocity or redshift :  4421           km/s                     z=   0.014747
Uncertainty          : +/-25                                    +/-  0.000083
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. 2 Name in publication : NGC 6721 Coordinates : 190050.5 -574528. J2000 Features targeted : Optical Velocity or redshift : 4461 km/s z= 0.014880 Uncertainty : +/-29 +/- 0.000097 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. 3 Name in publication : 6dF J1900507-574534 Coordinates : 190050.80 -574534.0 J2000 Features targeted : Optical Velocity or redshift : 4390 km/s z= 0.014643 Uncertainty : +/-31 +/- 0.000103 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. 4 Name in publication : NGC 6721 Coordinates : 185634.0 -574942. B1950 Features targeted : Optical Velocity or redshift : 4386 km/s z= 0.014630 Uncertainty : +/-50 +/- 0.000167 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 1978AJ.....83..904S


No. 5 Name in publication : NGC 6721 Coordinates : 185634.0 -574942. B1950 Features targeted : Optical Velocity or redshift : 4386 km/s z= 0.014630 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1987ApJS...64..581D


No. 6 Name in publication : NGC 6721 Coordinates : 185634.0 -574942. B1950 Features targeted : Optical Velocity or redshift : 4412 km/s z= 0.014717 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1984AJ.....89...23S


No. 7 Name in publication : Coordinates : Features targeted : Velocity or redshift : 4463 km/s z= 0.014887 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2016AJ....152...50T Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 8 Name in publication : NGC 6721 Coordinates : 185634.0 -574942. B1950 Features targeted : Optical Velocity or redshift : 4500 km/s z= 0.015010 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1976MNRAS.175..633M



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