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Date and Time of the Query: 2019-06-17 T17:43:15 PDT
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Redshift data point(s) for object NGC 2227

12 redshift data point(s) found in NED.


No.Frequency Targeted km/s +/- unc z +/- uncReference Code
0   2258   3   0.007532   0.000010   1998A&AS..130..333T
1 21-cm 2256   2   0.007525   0.000007   2005ApJS..160..149S
2 21-cm 2258   3   0.007532   0.000010   1998A&AS..130..333T
3 21-cm 2258   7   0.007532   0.000022   2006HIPAS.C...0000:
4 H-alpha 2257   10   0.007529   0.000033   1996ApJS..107...97M
5 21-cm HI line 2261   10   0.007542   0.000033   1991RC3.9.C...0000d
6 Optical 2221   20   0.007408   0.000067   1992CORV..C...0000F
7 Optical 2292   45   0.007645   0.000150   20096dF...C...0000J
8 Optical lines 2221   59   0.007408   0.000197   1991RC3.9.C...0000d
9 2256     0.007525     2013AJ....146...86T
10 2256     0.007525     2013ApJ...771...88L
11 2256     0.007525     2016AJ....152...50T
12 2259     0.007535     2015MNRAS.447.1531C

Detailed information for each entry

No. 1
Name in publication  : AGC 025098                    
Coordinates          : 062557.9                 -220018          J2000
Features targeted    : 21-cm                         
Velocity or redshift :  2256           km/s                     z=   0.007525
Uncertainty          : +/-2                                     +/-  0.000007
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. 2 Name in publication : PGC 019030 Coordinates : 062351. -215830. B1950 Features targeted : 21-cm Velocity or redshift : 2258 km/s z= 0.007532 Uncertainty : +/-3 +/- 0.000010 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. 3 Name in publication : HIPASS J0625-21 Coordinates : 062555.2 -215959 J2000 Features targeted : 21-cm Velocity or redshift : 2258.1 km/s z= 0.007532 Uncertainty : +/-6.5 +/- 0.000022 Unc. Significance : estimated error Reference Code : 2006HIPAS.C...0000: 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. 4 Name in publication : ESO 556- G 023 Coordinates : 062351 -215830 B1950 Features targeted : H-alpha Velocity or redshift : 2257 km/s z= 0.007529 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. 5 Name in publication : ESO 556- G 023 Coordinates : 062351.0 -215830 B1950 Features targeted : 21-cm HI line Velocity or redshift : 2261 km/s z= 0.007542 Uncertainty : +/-10 +/- 0.000033 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. 6 Name in publication : NGC 2227 Coordinates : 062351.0 -215830. B1950 Features targeted : Optical Velocity or redshift : 2221 km/s z= 0.007408 Uncertainty : +/-20 +/- 0.000067 Unc. Significance : uncertainty Reference Code : 1992CORV..C...0000F Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : From reprocessed raw data NED Comment : From 1976AJ.....81..687R


No. 7 Name in publication : 6dF J0625580-220017 Coordinates : 062557.98 -220017.4 J2000 Features targeted : Optical Velocity or redshift : 2292 km/s z= 0.007645 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. 8 Name in publication : ESO 556- G 023 Coordinates : 062351.0 -215830 B1950 Features targeted : Optical lines Velocity or redshift : 2221 km/s z= 0.007408 Uncertainty : +/-59 +/- 0.000197 Unc. Significance : rms uncertainty Reference Code : 1991RC3.9.C...0000d Measurement Mode : Spectral range : Optical Reference Frame : Heliocentric velocity or redshift Qualifiers : Homogenized from new and previously published data NED Comment :


No. 9 Name in publication : NGC 2227 Coordinates : 062558.0 -220017.2 J2000 Features targeted : Velocity or redshift : 2256 km/s z= 0.007525 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. 10 Name in publication : NGC 2227 Coordinates : 062557.9785 -220017.420 J2000 Features targeted : Velocity or redshift : 2256 km/s z= 0.007525 Uncertainty : No uncertainty given Unc. Significance : no unc. reported Reference Code : 2013ApJ...771...88L Measurement Mode : Reference Frame : Heliocentric velocity or redshift Qualifiers : Uncertain origin NED Comment :


No. 11 Name in publication : Coordinates : Features targeted : Velocity or redshift : 2256 km/s z= 0.007525 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. 12 Name in publication : Coordinates : Features targeted : Velocity or redshift : 2259 km/s z= 0.007535 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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