NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: Tue Jun 25 19:03:04 2019 PDT
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Classifications for NGC 2974

30 Classifications found in NED

   NGC 2974


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 179
GE
1984ApJ...283...33B
 i  Group member of poor cluster
...
Optical
Environment
see MKW 1
Isolated Elliptical
2004ApJ...607..810M
 i  Isolated elliptical galaxy
...
Optical
Galaxy
...
Kinematics
HI line width
1979A&A....74..172B
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.410; [w = 257 km/s]
4: HI line width measured at 40% of maximum
HI line width
1979A&A....74..172B
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.458; [w = 287 km/s]
1: HI line width measured at 20% of maximum
HI line width
1979A&A....74..172B
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.377; [w = 238 km/s]
5: HI line width measured at 50% of maximum
HI line width
1988ApJ...330..684K
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.763; [w = 579 km/s]
5: HI line width measured at 50% of maximum
Galaxy Morphology
E4
1991RC3.9.C...0000d
 i  E4
...
Optical
Galaxy
Code: [.E.4...]
E4
1981RSA...C...0000S
 i  E4
...
Optical
Galaxy
Code: [E 4]
1
1995MNRAS.274.1107N
 i  Sa
...
Optical
Galaxy
classification by van den Bergh
0
1995MNRAS.274.1107N
 i  S0/a
...
Optical
Galaxy
classification by Corwin
0
1995MNRAS.274.1107N
 i  S0/a
...
Optical
Galaxy
classification by Dressler
0
1995MNRAS.274.1107N
 i  S0/a
...
Optical
Galaxy
classification by Huchra
0
1995MNRAS.274.1107N
 i  S0/a
...
Optical
Galaxy
classification by de Vaucouleurs
-2
1995MNRAS.274.1107N
 i  S00
...
Optical
Galaxy
classification by Buta
isolated elliptical
1994CAG1..B...0000S
 i  isolated elliptical
...
Optical
Galaxy
...
Isolated Elliptical
2004ApJ...607..810M
 i  isolated elliptical
...
Optical
Galaxy
...
vBN
1964RC1...C...0000d
 i  very bright nucleus
...
Optical
Galaxy
...
star nearby
1964RC1...C...0000d
 i  star nearby
...
Optical
Galaxy
...
Activity Type
S2
2006A&A...455..773V
 i  Sy 2
...
Optical
Nucleus
No broad component visible
Relevant reference: 2003AJ....126.1750M
Distance Indicator
Tully-Fisher
2007A&A...465...71T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 32.6 +/- 0.4 mag
D = 33 Mpc
Tully-Fisher
2007A&A...465...71T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 30.36 +/- 0.45 mag
D = 11.8 Mpc
Tully est
1988NBGC.C....0000T
 i  Tully est
...
Optical
Galaxy
(m-M) = 32.28 +/- 0.8 mag
D = 28.5 Mpc
SBF
2001MNRAS.327.1004B
 i  SBF
...
Optical
Galaxy
(m-M) = 31.76 +/- 0.24 mag
D = 22.4 Mpc
SBF
2001MNRAS.327.1004B
 i  SBF
...
Optical
Galaxy
(m-M) = 31.66 +/- 0.24 mag
D = 21.5 Mpc
SBF
2001ApJ...546..681T
 i  SBF
...
Optical
Galaxy
(m-M) = 31.66 +/- 0.24 mag
D = 21.5 Mpc
FP
2001MNRAS.327.1004B
 i  FP
...
Optical
Galaxy
(m-M) = 32.39 +/- 0.41 mag
D = 30.1 Mpc
FP
2001MNRAS.327.1004B
 i  FP
...
Optical
Galaxy
(m-M) = 32.26 +/- 0.41 mag
D = 28.3 Mpc
D-Sigma
1997ApJS..109..333W
 i  D-Sigma
...
Optical
Galaxy
(m-M) = 32.16 +/- 0.4 mag
D = 27 Mpc
D-Sigma
1997ApJS..109..333W
 i  D-Sigma
...
Optical
Galaxy
(m-M) = 31.82 +/- 0.4 mag
D = 23.2 Mpc


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