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Date and Time of the Query: 2019-04-19 T00:20:21 PDT
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Redshift data point(s) for object NGC 2821

9 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   2436   6   0.008126   0.000020   1998A&AS..130..333T
1 21-cm 2436   6   0.008126   0.000020   1998A&AS..130..333T
2 21-cm 2436   7   0.008126   0.000024   2005ApJS..160..149S
3 H-alpha 2444   10   0.008152   0.000033   1996ApJS..107...97M
4 Optical 2439   38   0.008136   0.000127   1992ApJS...83...29S
5 Optical 2537   45   0.008463   0.000150   20096dF...C...0000J
6 2436     0.008126     2015MNRAS.447.1531C
7 2436     0.008126     2016AJ....152...50T
8 2436     0.008126     2013AJ....146...86T
9 2436     0.008126     2014MNRAS.444..527S

Detailed information for each entry

No. 1
Name in publication  : PGC 026192                    
Coordinates          : 091436.                  -263624.         B1950
Features targeted    : 21-cm                         
Velocity or redshift :  2436           km/s                     z=   0.008126
Uncertainty          : +/-6                                     +/-  0.000020
Unc. Significance    : mean error
Reference Code       : 1998A&AS..130..333T

Measurement Mode     :
    Spectral range   : Radio
    Spectrograph     : Heterodyne receiver(e.g., 21-cm)
    Features         : 1 Emission lines
    Technique        : Mid-point of line profile at 20% lvel
    Spatial mode     : Redshift is systemic

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

NED Comment          :                                         



No. 2 Name in publication : AGC 026380 Coordinates : 091647.6 -264859 J2000 Features targeted : 21-cm Velocity or redshift : 2436 km/s z= 0.008126 Uncertainty : +/-7 +/- 0.000024 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. Green Bank 42-m data.


No. 3 Name in publication : ESO 497- G 034 Coordinates : 091436 -263624 B1950 Features targeted : H-alpha Velocity or redshift : 2444 km/s z= 0.008152 Uncertainty : +/-10 +/- 0.000033 Unc. Significance : internal error Reference Code : 1996ApJS..107...97M Measurement Mode : Spectral range : Optical Spectrograph : Long-slit spectrum Features : 1 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; Corrected for contaminating sources NED Comment :


No. 4 Name in publication : IRAS 09145-2636 Coordinates : 091436.0 -263622 B1950 Features targeted : Optical Velocity or redshift : 2439 km/s z= 0.008136 Uncertainty : +/-38 +/- 0.000127 Unc. Significance : estimated error Reference Code : 1992ApJS...83...29S Measurement Mode : Spectral range : Optical Spectrograph : Long-slit spectrum Features : Emission lines Technique : Individual line fitting Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : From new, raw data NED Comment :


No. 5 Name in publication : 6dF J0916480-264859 Coordinates : 091647.98 -264858.6 J2000 Features targeted : Optical Velocity or redshift : 2537 km/s z= 0.008463 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. 6 Name in publication : Coordinates : Features targeted : Velocity or redshift : 2436 km/s z= 0.008126 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. 7 Name in publication : Coordinates : Features targeted : Velocity or redshift : 2436 km/s z= 0.008126 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 : AGC 026380 Coordinates : 091648.0 -264858.2 J2000 Features targeted : Velocity or redshift : 2436 km/s z= 0.008126 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. 9 Name in publication : Coordinates : Features targeted : Velocity or redshift : 0.008126 z= 0.008126 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2014MNRAS.444..527S Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :



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