NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2022-01-19 T07:00:59 PST
Help | Comment | NED Home

Redshift data point(s) for object NGC 7491

8 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   6222   4   0.020754   0.000014   2005ApJS..160..149S
1 21-cm 6222   4   0.020754   0.000014   2005ApJS..160..149S
2 Optical 6228   32   0.020774   0.000107   1993AJ....105.1637H
3 Optical 6250   45   0.020848   0.000150   20096dF...C...0000J
4 4358     0.014537     2014ApJS..210....9B
5 6226     0.020768     2015MNRAS.447.1531C
6 6226     0.020768     2016AJ....152...50T
7 6226     0.020768     2013AJ....146...86T
8 6251     0.020850     2014ApJS..210....9B

Detailed information for each entry

No. 1
Name in publication  : AGC 630028                    
Coordinates          : 230805.9                 -055756          J2000
Features targeted    : 21-cm                         
Velocity or redshift :  6222           km/s                     z=   0.020754
Uncertainty          : +/-4                                     +/-  0.000014
Unc. Significance    : estimated error
Reference Code       : 2005ApJS..160..149S

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 reprocessed raw data

NED Comment          : 'Quality' Good.  Nancay data.           



No. 2 Name in publication : MCG -01-59-002 Coordinates : 230530.0 -061400 B1950 Features targeted : Optical Velocity or redshift : 6228 km/s z= 0.020774 Uncertainty : +/-32 +/- 0.000107 Unc. Significance : estimated error Reference Code : 1993AJ....105.1637H 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. 3 Name in publication : 6dF J2308060-055800 Coordinates : 230805.99 -055800.0 J2000 Features targeted : Optical Velocity or redshift : 6250 km/s z= 0.020848 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. 4 Name in publication : Coordinates : Features targeted : Velocity or redshift : 0.014537 z= 0.014537 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2014ApJS..210....9B Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 5 Name in publication : Coordinates : Features targeted : Velocity or redshift : 6226 km/s z= 0.020768 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2015MNRAS.447.1531C Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 6 Name in publication : Coordinates : Features targeted : Velocity or redshift : 6226 km/s z= 0.020768 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. 7 Name in publication : AGC 630028 Coordinates : 230806.0 -055759.8 J2000 Features targeted : Velocity or redshift : 6226 km/s z= 0.020768 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2013AJ....146...86T Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 8 Name in publication : Coordinates : Features targeted : Velocity or redshift : 0.020850 z= 0.020850 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2014ApJS..210....9B Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :



Back to NED Home