NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: Sun May 19 15:22:52 2019 PDT
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Classifications for NGC 7331

66 Classifications found in NED

   NGC 7331


Published NED Homogenized
Classification Reference Code Classification Flag Bandpass Region Notes
Hierarchy
GR
1993A&AS..100...47G
 i  Group member, radial-velocity confirmed
...
Optical
Environment
see GG 459
GR
1992A&AS...93..211F
 i  Group member, radial-velocity confirmed
...
Optical
Environment
see NGC 7331 GROUP
GM
1984TarOT..73....1V
 i  Group member
...
Optical
Environment
see VNK.110
GM
1999AJ....118.2014W
 i  Group member
...
Optical
Environment
see WBL 684
G1
1976RC2...C...0000d
 i  Brightest group member
...
Optical
Environment
see NGC 7331 GROUP
Kinematics
HI line width
1981ApJS...47..139F
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.725; [w = 530 km/s]
1: HI line width measured at 20% of maximum
HI line width
1979A&A....75...19B
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.642; [w = 438 km/s]
0: undefined level for HI line width
HI line width
1978A&A....68..321S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.723; [w = 528 km/s]
1: HI line width measured at 20% of maximum
HI line width
1978A&A....68..321S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.697; [w = 497 km/s]
5: HI line width measured at 50% of maximum
HI line width
1978A&A....68..321S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.706; [w = 508 km/s]
4: HI line width measured at 40% of maximum
HI line width
1978A&A....68..321S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.719; [w = 523 km/s]
1: HI line width measured at 20% of maximum
HI line width
1980A&A....81..167S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.693; [w = 493 km/s]
5: HI line width measured at 50% of maximum
HI line width
1980A&A....81..167S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.720; [w = 524 km/s]
1: HI line width measured at 20% of maximum
HI line width
1980A&AS...41..189R
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.703; [w = 504 km/s]
2: HI line width measured at 25% of maximum
HI line width
2005ApJS..160..149S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.695; [w = 495 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) = 2.730; [w = 537 km/s]
6: HI line width measured at 20% of the mean
HI line width
1987MNRAS.224..953S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.717; [w = 521 km/s]
1: HI line width measured at 20% of maximum
HI line width
1987MNRAS.224..953S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.692; [w = 492 km/s]
5: HI line width measured at 50% of maximum
HI line width
1981ApJS...47..139F
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.702; [w = 503 km/s]
5: HI line width measured at 50% of maximum
HI line width
2003A&A...406..829B
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.708; [w = 510 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) = 2.744; [w = 554 km/s]
1: HI line width measured at 20% of maximum
Luminosity Class
3.0
1991RC3.9.C...0000d
 i  LC II
...
Optical
Galaxy
...
Sb(rs) I-II
1981RSA...C...0000S
 i  LC I-II
...
Optical
Galaxy
Code: [S T3 1.5]
Galaxy Morphology
SA(s)b
1991RC3.9.C...0000d
 i  SA(s)b
...
Optical
Galaxy
Code: [.SAS3..]
Sb(rs)
1981RSA...C...0000S
 i  S(rs)b
...
Optical
Galaxy
Code: [S T3 1.5]
Sb
1973UGC...C...0000N
 i  Sb
...
Optical
Galaxy
...
AC 03
1987ApJ...314....3E
 i  Arm Class 03
...
Optical
Galaxy
...
3
1975SoByu..47...43A
 i  no nucleus
...
Optical
Galaxy
...
3
1975SoByu..47...43A
 i  continuous brightening towards center
...
Optical
Galaxy
...
3
2000ApJ...533..744T
 i  Sb
...
Optical
Galaxy
...
multi-armed spiral
1994CAG1..B...0000S
 i  multi-armed spiral
...
Optical
Galaxy
...
No obvious XUV disk
2007ApJS..173..538T
 i  No obvious XUV disk
...
Ultraviolet
Galaxy
...
lopsided galaxy
1980MNRAS.193..313B
 i  lopsided galaxy
...
Optical
Galaxy
...
Distance Indicator
Tully-Fisher
2009AJ....138..323T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.66 +/- 0.35 mag
D = 13.6 Mpc
Tully-Fisher
2002ApJ...565..681R
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.64 +/- 0.2 mag
D = 13.4 Mpc
Tully-Fisher
1997ApJS..109..333W
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.57 +/- 0.47 mag
D = 13 Mpc
Tully-Fisher
1997ApJS..109..333W
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.5 +/- 0.47 mag
D = 12.6 Mpc
Tully-Fisher
2002ApJ...565..681R
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.38 +/- 0.46 mag
D = 11.9 Mpc
Tully-Fisher
1997ApJS..109..333W
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.25 +/- 0.47 mag
D = 11.2 Mpc
Tully-Fisher
1992ApJS...80..479T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.67 +/- 0.4 mag
D = 13.6 Mpc
Tully-Fisher
1988NBGC.C....0000T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.77 +/- 0.4 mag
D = 14.3 Mpc
Tully-Fisher
2009ApJS..182..474S
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.94 +/- 0.35 mag
D = 15.4 Mpc
Tully-Fisher
2009ApJS..182..474S
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.99 +/- 0.35 mag
D = 15.8 Mpc
Tully-Fisher
2011A&A...532A.104N
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 31.06 +/- 0.4 mag
D = 16.3 Mpc
Sosies
2002A&A...393...57T
 i  Sosies
...
Optical
Galaxy
(m-M) = 30.86 +/- 0.09 mag
D = 14.9 Mpc
SBF
2003ApJ...583..712J
 i  SBF
...
Optical
Galaxy
(m-M) = 30.43 +/- 0.17 mag
D = 12.2 Mpc
SBF
2001ApJ...546..681T
 i  SBF
...
Optical
Galaxy
(m-M) = 30.59 +/- 0.17 mag
D = 13.1 Mpc
SBF
1997ApJ...475..399T
 i  SBF
...
Optical
Galaxy
(m-M) = 30.39 +/- 0.1 mag
D = 12 Mpc
IRAS
1997ApJS..109..333W
 i  IRAS
...
Optical
Galaxy
(m-M) = 30.75 +/- 0.8 mag
D = 14.1 Mpc
HII region diameter
1982AN....303..329O
 i  HII region diameter
...
Optical
Galaxy
(m-M) = 29.29 +/- 0.05 mag
D = 7.22 Mpc
Grav. Stability Gas. Disk
1996AstL...22...71Z
 i  Grav. Stability Gas. Disk
...
Optical
Galaxy
(m-M) = 30.91 mag
D = 15.2 Mpc
Cepheids
2003A&A...411..361K
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.95 +/- 0.09 mag
D = 15.5 Mpc
Cepheids
2003A&A...411..361K
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.79 +/- 0.08 mag
D = 14.4 Mpc
Cepheids
2002A&A...389...19P
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.93 +/- 0.12 mag
D = 15.3 Mpc
Cepheids
2006ApJS..165..108S
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.89 +/- 0.1 mag
D = 15.1 Mpc
Cepheids
1998ApJ...501...32H
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.89 +/- 0.1 mag
D = 15.1 Mpc
Cepheids
2003A&A...411..361K
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.89 +/- 0.08 mag
D = 15.1 Mpc
Cepheids
2003A&A...411..361K
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.88 +/- 0.09 mag
D = 15 Mpc
Cepheids
2002A&A...389...19P
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.86 +/- 0.22 mag
D = 14.9 Mpc
Cepheids
2003A&A...411..361K
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.86 +/- 0.08 mag
D = 14.9 Mpc
Cepheids
2001ApJ...553...47F
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.84 +/- 0.09 mag
D = 14.7 Mpc
Cepheids
2003A&A...411..361K
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.82 +/- 0.08 mag
D = 14.6 Mpc
Cepheids
2002A&A...389...19P
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.8 +/- 0.11 mag
D = 14.5 Mpc
Cepheids
2001ApJ...553...47F
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.81 +/- 0.09 mag
D = 14.5 Mpc
Cepheids
2003A&A...411..361K
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.8 +/- 0.08 mag
D = 14.5 Mpc
Cepheids
2001ApJ...548..564W
 i  Cepheids
...
Optical
Galaxy
(m-M) = 30.79 +/- 0.12 mag
D = 14.4 Mpc


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