NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: Thu Jun 20 07:50:21 2019 PDT
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Classifications for NGC 2998

44 Classifications found in NED

   NGC 2998


Published NED Homogenized
Classification Reference Code Classification Flag Bandpass Region Notes
Hierarchy
F?
1976ApJS...32..409T
 i  Possible field galaxy
...
Optical
Environment
see NGC 2998
RG
1998Afz....41..308M
 i  in a radial-velocity based grouping
...
Optical
Environment
see [M98j] 074
GM
1999AJ....118.2014W
 i  Group member
...
Optical
Environment
see WBL 241
GM
1976RC2...C...0000d
 i  Group member
...
Optical
Environment
see NGC 2998 GROUP
GM
1998Afz....41..308M
 i  Group member
...
Optical
Environment
see [GH83] 049
FL
2004AJ....127.3273V
 i  Field galaxy
...
Optical
Environment
see Field
G1
1983ApJS...52...61G
 i  Brightest group member
...
Optical
Environment
see [GH83] 049
Kinematics
HI line width
1994AJ....108..896M
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.587; [w = 386 km/s]
8: HI line width measured at 50% of the mean
HI line width
1999AJ....117.2039H
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.582; [w = 381 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) = 2.609; [w = 406 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) = 2.573; [w = 374 km/s]
5: HI line width measured at 50% of maximum
HI line width
1992ApJS...81....5S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.590; [w = 389 km/s]
1: HI line width measured at 20% of maximum
HI line width
1992ApJS...81....5S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.572; [w = 373 km/s]
5: HI line width measured at 50% of maximum
HI line width
1988MNRAS.231..833S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.573; [w = 374 km/s]
5: HI line width measured at 50% of maximum
HI line width
1988MNRAS.231..833S
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.593; [w = 391 km/s]
1: HI line width measured at 20% of maximum
HI line width
1994A&AS..107..129B
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.595; [w = 393 km/s]
1: HI line width measured at 20% of maximum
HI line width
1994A&AS..107..129B
 i  HI line width
...
Radio
Galaxy
From HyperLEDA (Sept. 2010):
log(w) = 2.582; [w = 381 km/s]
5: HI line width measured at 50% of maximum
Luminosity Class
5.0
1991RC3.9.C...0000d
 i  LC III
...
Optical
Galaxy
...
Sc(rs) I
1981RSA...C...0000S
 i  LC I
...
Optical
Galaxy
Code: [S T5 1.0]
Galaxy Morphology
SAB(rs)c
1991RC3.9.C...0000d
 i  SAB(rs)c
...
Optical
Galaxy
Code: [.SXT5..]
Sc(rs)
1981RSA...C...0000S
 i  S(rs)c
...
Optical
Galaxy
Code: [S T5 1.0]
Sc
1973UGC...C...0000N
 i  Sc
...
Optical
Galaxy
...
AC 09
1987ApJ...314....3E
 i  Arm Class 09
...
Optical
Galaxy
...
well-defined arms
1994CAG1..B...0000S
 i  well-defined arms
...
Optical
Galaxy
...
narrow or thin arms
1994CAG1..B...0000S
 i  narrow or thin arms
...
Optical
Galaxy
...
multi-armed spiral
1994CAG1..B...0000S
 i  multi-armed spiral
...
Optical
Galaxy
...
vsN
1964RC1...C...0000d
 i  very small nucleus
...
Optical
Galaxy
...
many arms
1964RC1...C...0000d
 i  many arms
...
Optical
Galaxy
...
knotty arms
1964RC1...C...0000d
 i  knotty arms
...
Optical
Galaxy
...
filamentary arms
1964RC1...C...0000d
 i  filamentary arms
...
Optical
Galaxy
...
BN
1964RC1...C...0000d
 i  bright nucleus
...
Optical
Galaxy
...
5
2010ApJS..186..427N
 i  Sc
...
Optical
Galaxy
...
4
2010ApJS..186..427N
 i  (r)
...
Optical
Galaxy
...
Distance Indicator
Tully-Fisher
2009ApJS..182..474S
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 34.05 +/- 0.26 mag
D = 64.6 Mpc
Tully-Fisher
2007A&A...465...71T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 34.19 +/- 0.4 mag
D = 68.9 Mpc
Tully-Fisher
2002ApJ...565..681R
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 33.26 mag
D = 44.9 Mpc
Tully-Fisher
1997ApJS..109..333W
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 33.67 +/- 0.38 mag
D = 54.2 Mpc
Tully-Fisher
1997ApJS..109..333W
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 33.84 +/- 0.38 mag
D = 58.6 Mpc
Tully-Fisher
1997ApJS..109..333W
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 33.95 +/- 0.38 mag
D = 61.5 Mpc
Tully-Fisher
2007A&A...465...71T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 33.95 +/- 0.47 mag
D = 61.6 Mpc
Tully-Fisher
2007A&A...465...71T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 33.97 +/- 0.46 mag
D = 62.3 Mpc
Tully-Fisher
2009ApJS..182..474S
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 34.01 +/- 0.27 mag
D = 63.2 Mpc
Tully-Fisher
2007A&A...465...71T
 i  Tully-Fisher
...
Optical
Galaxy
(m-M) = 34.01 +/- 0.45 mag
D = 63.3 Mpc
IRAS
1997ApJS..109..333W
 i  IRAS
...
Optical
Galaxy
(m-M) = 34.17 +/- 0.8 mag
D = 68.3 Mpc


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