NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-19 T19:15:32 PDT
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Redshift data point(s) for object NGC 7688

3 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   11397   31   0.038016   0.000103   1999ApJS..121..287H
1 Optical 11397   31   0.038016   0.000103   1999ApJS..121..287H
2 21-cm HI line 11397   40   0.038016   0.000133   1993AJ....105.1271G
3 Optical 11356   50   0.037880   0.000167   2000UZC...C......0F

Detailed information for each entry

No. 1
Name in publication  : NGC 7688                      
Coordinates          : 232836.0                 210800.          B1950
Features targeted    : Optical                       
Velocity or redshift :  11397          km/s                     z=   0.038016
Uncertainty          : +/-31                                    +/-  0.000103
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. 2 Name in publication : CGCG 454-080 Coordinates : 232836.0 +210810 B1950 Features targeted : 21-cm HI line Velocity or redshift : 11397 km/s z= 0.038016 Uncertainty : +/-39 +/- 0.000133 Unc. Significance : internal error Reference Code : 1993AJ....105.1271G 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 SNR given; SNR = 3.0 assumed.


No. 3 Name in publication : UZC J233105.5+212441 Coordinates : 233105.5 +212441. J2000 Features targeted : Optical Velocity or redshift : 11356 km/s z= 0.037880 Uncertainty : +/-50 +/- 0.000167 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 :



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