NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: Sat May 25 02:51:01 2019 PDT
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Classifications for NGC 6691

12 Classifications found in NED

   NGC 6691


Published NED Homogenized
Classification Reference Code Classification Flag Bandpass Region Notes
Kinematics
HI line width
1991ApJS...77..331H
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.068; [w = 116 km/s]
1: HI line width measured at 20% of maximum
HI line width
2005ApJS..160..149S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 1.903; [w = 79 km/s]
5: HI line width measured at 50% of maximum
HI line width
1988ApJS...67....1T
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 1.973; [w = 93 km/s]
6: HI line width measured at 20% of the mean
HI line width
1991ApJS...77..331H
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 1.820; [w = 66 km/s]
5: HI line width measured at 50% of maximum
HI line width
2005ApJS..160..149S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.083; [w = 121 km/s]
1: HI line width measured at 20% of maximum
HI line width
1976AJ.....81..687R
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 1.903; [w = 79 km/s]
1: HI line width measured at 20% of maximum
HI line width
1976AJ.....81..687R
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 1.839; [w = 69 km/s]
4: HI line width measured at 40% of maximum
HI line width
1976AJ.....81..687R
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 1.763; [w = 57 km/s]
5: HI line width measured at 50% of maximum
HI line width
1976AJ.....81..687R
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 1.908; [w = 80 km/s]
1: HI line width measured at 20% of maximum
Luminosity Class
4.0
1991RC3.9.C...0000d
 i  LC II-III
...
Optical
Galaxy
...
Galaxy Morphology
SB(rs)bc
1991RC3.9.C...0000d
 i  SB(rs)bc
...
Optical
Galaxy
Code: [.SBT4..]
SBb
1973UGC...C...0000N
 i  SBb
...
Optical
Galaxy
...


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