NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-23 T18:53:43 PDT
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Redshift data point(s) for object NGC 6911

8 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   2501   8   0.008342   0.000027   1991RC3.9.C...0000d
1 21-cm 2487   4   0.008296   0.000012   2005ApJS..160..149S
2 21-cm HI line 2501   8   0.008342   0.000027   1991RC3.9.C...0000d
3 Optical 2490   23   0.008306   0.000077   1992ApJS...83...29S
4 2485     0.008289     2013AJ....146...86T
5 2485     0.008289     2014MNRAS.444..527S
6 2485     0.008289     2015MNRAS.447.1531C
7 2485     0.008289     2016AJ....152...50T
8 2488     0.008299     2008ApJ...676..184T

Detailed information for each entry

No. 1
Name in publication  : UGC 11540                     
Coordinates          : 201938.6                 +664340          J2000
Features targeted    : 21-cm                         
Velocity or redshift :  2487           km/s                     z=   0.008296
Uncertainty          : +/-3                                     +/-  0.000012
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. 2 Name in publication : UGC 11540 Coordinates : 2019.1 +6634 B1950 Features targeted : 21-cm HI line Velocity or redshift : 2501 km/s z= 0.008342 Uncertainty : +/-8 +/- 0.000027 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. 3 Name in publication : IRAS 20191+6634 Coordinates : 201911.4 +663409 B1950 Features targeted : Optical Velocity or redshift : 2490 km/s z= 0.008306 Uncertainty : +/-23 +/- 0.000077 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. 4 Name in publication : UGC 11540 Coordinates : 201938.4 +664342.1 J2000 Features targeted : Velocity or redshift : 2485 km/s z= 0.008289 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. 5 Name in publication : Coordinates : Features targeted : Velocity or redshift : 0.008289 z= 0.008289 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 :


No. 6 Name in publication : Coordinates : Features targeted : Velocity or redshift : 2485 km/s z= 0.008289 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 : 2485 km/s z= 0.008289 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 : PGC 064485 Coordinates : Features targeted : Velocity or redshift : 0.008299 z= 0.008299 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2008ApJ...676..184T Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :



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