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Date and Time of the Query: 2019-06-17 T10:27:47 PDT
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Redshift data point(s) for object NGC 7228

8 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   6553   10   0.021858   0.000033   1993AJ....105.1251W
1 21-cm HI line 6553   8   0.021858   0.000026   1993AJ....105.1251W
2 6553   10   0.021858   0.000033   2000UZC...C......0F
3 21-cm HI line 6553   11   0.021858   0.000037   1991RC3.9.C...0000d
4 Optical 6553   11   0.021858   0.000037   1999ApJS..121..287H
5 21-cm 6554   16   0.021862   0.000052   2005ApJS..160..149S
6 Optical 6486   48   0.021635   0.000160   1993AJ....105.1251W
7 6628   140   0.022109   0.000467   2000AJ....119..545G
8 6558     0.021875     2015MNRAS.447.1531C

Detailed information for each entry

No. 1
Name in publication  : UGC 11945                     
Coordinates          : 220939.1                 +382700          B1950
Features targeted    : 21-cm HI line                 
Velocity or redshift :  6553           km/s                     z=   0.021858
Uncertainty          : +/-7                                     +/-  0.000026
Unc. Significance    : internal error
Reference Code       : 1993AJ....105.1251W

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 new, raw data

NED Comment          :                                         



No. 2 Name in publication : UZC J221148.6+384156 Coordinates : 221148.6 +384156. J2000 Features targeted : Velocity or redshift : 6553 km/s z= 0.021858 Uncertainty : +/-10 +/- 0.000033 Unc. Significance : uncertainty Reference Code : 2000UZC...C......0F Measurement Mode : Spectral range : Optical Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from previously published data NED Comment :


No. 3 Name in publication : UGC 11945 Coordinates : 220939.3 +382707 B1950 Features targeted : 21-cm HI line Velocity or redshift : 6553 km/s z= 0.021858 Uncertainty : +/-11 +/- 0.000037 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Radio Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 4 Name in publication : NGC 7228 Coordinates : 220939.3 382706. B1950 Features targeted : Optical Velocity or redshift : 6553 km/s z= 0.021858 Uncertainty : +/-11 +/- 0.000037 Unc. Significance : uncertainty Reference Code : 1999ApJS..121..287H Measurement Mode : Spectral range : Optical Technique : Cross-correlation fit to template spectrum Spatial mode : Redshift is systemic Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 5 Name in publication : UGC 11945 Coordinates : 221148.7 +384156 J2000 Features targeted : 21-cm Velocity or redshift : 6554 km/s z= 0.021862 Uncertainty : +/-15 +/- 0.000052 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 91-m data.


No. 6 Name in publication : CGCG 513-013 Coordinates : 220939.1 +382700 B1950 Features targeted : Optical Velocity or redshift : 6486 km/s z= 0.021635 Uncertainty : +/-48 +/- 0.000160 Unc. Significance : estimated error Reference Code : 1993AJ....105.1251W Measurement Mode : Spectral range : Optical Spectrograph : Grism Features : Absorption 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. 7 Name in publication : NGC 7228 Coordinates : Features targeted : Velocity or redshift : 0.022109 z= 0.022109 Uncertainty : +/-0.000467 +/- 0.000467 Unc. Significance : uncertainty Reference Code : 2000AJ....119..545G Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 8 Name in publication : Coordinates : Features targeted : Velocity or redshift : 6558 km/s z= 0.021875 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 :



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