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You have selected the following parameters to search on:

Parameters for Distances and Cosmology: H_o= 73.0; Ω_matter = 0.27; Ω_vacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

SOURCE LIST


 Row          Object Name                 EquJ2000.0       Object  Velocity/Redshift    Mag./  Separ.               Number of                                 Row 
 No.     (* => Essential Note)       RA               DEC  Type     km/s       z   Qual Filter arcmin Refs Notes Phot Posn Vel/z Diam Assoc Images   Spectra  No. 
1   *NGC 2557                       08h19m10.7s +21d26m09s G        4865  0.016228      13.7g    ...    58     2   77   12    10   15     0 Retrieve Retrieve 1

Detailed information for each object

Object No. 1 - NGC 2557

INDEX for NGC 2557

Essential Data (jump to sub-section of this query report):

Essential Note
Cross-IDs
Coordinates
Basic Data
Quantities Derived from Redshift
Redshift-Independent Distances
Quick-Look Photometry and Luminosities
Quick-Look Angular and Physical Sizes
Classifications
Foreground Galactic Extinction
External Services

Detailed Data (NED queries):

Images

77 Photometric data point(s) and SED

Spectra
Redshift-Independent Distances
58 Reference(s)
12 Position data point(s)
10 Redshift data point(s)
15 Diameter data point(s)
2 Note(s)
UGC data
RC3 data

ESSENTIAL NOTE for NGC 2557 (Back to INDEX)

The 2MASS position is 5 arcsec east of the nucleus.

CROSS-IDENTIFICATIONS for NGC 2557 (Back to INDEX)

Object Names	Type	Object Names	Type
NGC 2557	G	USGC U173 NED19	G
UGC 04330	G	ASK 484553.0	G
CGCG 119-048	G	NSA 084222	G
CGCG 0816.3+2136	G	PGC 023329	G
MCG +04-20-021	G	SSTSL2 J081910.71+212608.4	IrS
2MASX J08191074+2126085	IrS	UZC J081910.8+212609	G
2MASXi J0819111+212610	IrS	CXO J081910.7+212609	XrayS
2MASS J08191073+2126088	IrS	1WGA J0819.1+2126	XrayS
SDSS J081910.74+212608.7	G	LGG 158:[G93] 004	G
SDSS J081910.74+212608.8	G	NGC 2563:[TFK97] 04	XrayS
SDSS J081910.75+212608.8	G	NGC 2563:[ZM98] 0003	G
GALEXASC J081910.81+212609.9	UvS	[TTL2012] 367592	G
LDCE 0571 NED004	G	[PJY2015] 587739115774214259	G
HDCE 0480 NED004	G

COORDINATES for NGC 2557 (Back to INDEX)

Position Reference:2007SDSS6.C...0000:

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)  124.063681   21.593168 08h16m15.283s +21d35m35.40s  5.00E-01  5.00E-01    0
Equatorial (J2000.0)  124.794775   21.435782 08h19m10.746s +21d26m08.82s  5.00E-01  5.00E-01    0
Ecliptic   (B1950.0)  121.403265    1.785072                              5.00E-01  5.00E-01    0
Ecliptic   (J2000.0)  122.101837    1.790308                              5.00E-01  5.00E-01    0
Galactic              202.004699   28.431664                              5.00E-01  5.00E-01    0
SuperGalactic          56.103424  -47.507720                              5.00E-01  5.00E-01    0

Additional detailed measurements with references are also available by clicking below:
12 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for NGC 2557 (Back to INDEX)

2 Distances found in NED View 2 Individual Distance Measurement(s) for NGC 2557

Summary Statistics computed by NED from 2 Distance(s) in the literature:
NOTE: These summary statistics are provided for "quick-look" reference only;
they are based exclusively on original values, as published.
No homogenization or corrections have been applied.

NGC 2557	Distance Modulus (mag)	Metric Distance (Mpc)
Mean	34.29	72.150
Std. Dev.	0.08	2.616
Min.	34.23	70.300
Max.	34.35	74.000
Median	34.29	72.150

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 2557 (Back to INDEX)

Type	As Published	NED Homogenized	Flag	Reference Code
Hierarchy	GR	Group member, radial-velocity confirmed	...	1993A&AS..100...47G
Galaxy Morphology	SB0	SB0	...	1991RC3.9.C...0000d
Distance Indicator	Tully-Fisher	Tully-Fisher	...	2007A&A...465...71T

7 Detailed Classification(s)

FOREGROUND GALACTIC EXTINCTION for NGC 2557 (Back to INDEX)

Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration 
of the Schlegel, Finkbeiner & Davis 1998, Appendix B; 1998ApJ...500..525S (SFD98) infrared-based dust map. 
The map is based on dust emission from COBE/DIRBE and IRAS/ISSA; 
the recalibration assumes a Fitzpatrick (1999PASP..111...63F) reddening law with R_v = 3.1 and different source spectrum than SFD98.



     L  a  n  d  o  l  t S  D  S  S U  K  I  R  T
Filter [µm] U (0.35) B (0.43) V (0.54) R (0.64) I (0.80) u (0.36) g (0.47) r (0.62) i (0.75) z (0.89) J (1.25) H (1.66) K (2.19) L' (3.78)
A_λ [mag] 0.186 0.155 0.117 0.093 0.064 0.182 0.142 0.098 0.073 0.054 0.030 0.019 0.013 0.007

  

Show/Hide A_λ magnitudes in all 88 photometric bands based on SF11
 

Bandpass [µm] A_λ [mag]
Landolt U (0.35)  0.186
Landolt B (0.43)  0.155
Landolt V (0.54)  0.117
Landolt R (0.64)  0.093
Landolt I (0.80)  0.064
CTIO U (0.37)  0.176
CTIO B (0.43)  0.156
CTIO V (0.55)  0.115
CTIO R (0.65)  0.091
CTIO I (0.80)  0.065
UKIRT J (1.25)  0.030
UKIRT H (1.66)  0.019
UKIRT K (2.19)  0.013
UKIRT L' (3.78)  0.007
Gunn g (0.52)  0.125
Gunn r (0.66)  0.088
Gunn i (0.79)  0.067
Gunn z (0.91)  0.053
Spinrad R_S (0.69)  0.082
Stromgren u (0.35)  0.184
Stromgren b (0.47)  0.144
Stromgren v (0.41)  0.163
Stromgren beta (0.49)  0.136
Stromgren y (0.55)  0.115
SDSS u (0.36)  0.182
SDSS g (0.47)  0.142
SDSS r (0.62)  0.098
SDSS i (0.75)  0.073
SDSS z (0.89)  0.054
DSS-II g (0.46)  0.145
DSS-II r (0.65)  0.089
DSS-II i (0.81)  0.064
PS1 g (0.49)  0.136
PS1 r (0.62)  0.097
PS1 i (0.75)  0.072
PS1 z (0.87)  0.057
PS1 y (0.97)  0.047
PS1 w (0.62)  0.100
LSST u (0.37)  0.178
LSST g (0.48)  0.139
LSST r (0.62)  0.097
LSST i (0.75)  0.072
LSST z (0.87)  0.057
LSST y (0.97)  0.047
WFPC2 F300W (0.31)  0.210
WFPC2 F450W (0.46)  0.146
WFPC2 F555W (0.54)  0.118
WFPC2 F606W (0.60)  0.103
WFPC2 F702W (0.69)  0.083
WFPC2 F814W (0.79)  0.066
WFC3 F105W (1.04)  0.042
WFC3 F110W (1.12)  0.038
WFC3 F125W (1.23)  0.031
WFC3 F140W (1.37)  0.026
WFC3 F160W (1.53)  0.022
WFC3 F200LP (0.55)  0.127
WFC3 F218W (0.22)  0.332
WFC3 F225W (0.24)  0.299
WFC3 F275W (0.27)  0.235
WFC3 F300X (0.29)  0.224
WFC3 F336W (0.34)  0.191
WFC3 F350LP (0.59)  0.112
WFC3 F390W (0.40)  0.167
WFC3 F438W (0.43)  0.155
WFC3 F475W (0.48)  0.139
WFC3 F475X (0.50)  0.134
WFC3 F555W (0.53)  0.122
WFC3 F600LP (0.74)  0.076
WFC3 F606W (0.59)  0.107
WFC3 F625W (0.62)  0.097
WFC3 F775W (0.76)  0.070
WFC3 F814W (0.80)  0.066
WFC3 F850LP (0.91)  0.052
ACS clear (0.62)  0.104
ACS F435W (0.43)  0.155
ACS F475W (0.48)  0.140
ACS F550M (0.56)  0.112
ACS F555W (0.54)  0.120
ACS F606W (0.59)  0.106
ACS F625W (0.63)  0.095
ACS F775W (0.77)  0.070
ACS F814W (0.80)  0.065
ACS F850LP (0.90)  0.053
DES g (0.48)  0.139
DES r (0.64)  0.093
DES i (0.78)  0.068
DES z (0.91)  0.052
DES Y (0.99)  0.045


For completeness, we include the original SFD98 values:


     L  a  n  d  o  l  t S  D  S  S U  K  I  R  T
Filter [µm] U (0.34) B (0.44) V (0.54) R (0.65) I (0.81) u (0.35) g (0.49) r (0.63) i (0.78) z (0.93) J (1.27) H (1.67) K (2.22) L' (3.81)
A_λ [mag] 0.228 0.181 0.139 0.112 0.081 0.217 0.159 0.116 0.088 0.062 0.038 0.024 0.015 0.006


Galactic Extinction based on H I Column Densities and Galaxy Counts 
(Burstein & Heiles; 1982AJ.....87.1165B) assuming R_v = 3.1:
A_B = 0.120 mag 

See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 2557 (Back to INDEX)

Helio. Radial Velocity     :      4865 +/-       21 km/s      
Redshift                   :  0.016228 +/- 0.000070        1991RC3.9.C...0000d
Major Diameter (arcmin)    :  1.18
Minor Diameter (arcmin)    :  0.95
Magnitude and Filter       : 13.7g
Classifications            : SB0                 

NOTE: This information is indicative only. With the exception of the
      redshift they are unreferenced and highly inhomogeneous as to
      their origin. The Radial Velocity (when available) is computed
      from the listed redshift. The remaining values are designed to
      orient the user with a quick-look, overall assessment of the
      general properties of the object in question. They are not
      averages nor are they standardized in any way.

Additional detailed measurements with references are also available by clicking below:
10 Redshift data point(s)      77 photometric data point(s)      15 Diameter data point(s)

QUANTITIES DERIVED FROM REDSHIFT for NGC 2557 (Details)(Back to INDEX)

Calculated and Corrected Velocities
V (Heliocentric)           :    4865 +/-     21 km/s      1991RC3.9.C...0000d
V (Kinematic LSR)          :    4855 +/-     21 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :    4785 +/-     21 km/s      1991RC3.9.C...0000d
V (Local Group)            :    4764 +/-     22 km/s      1996AJ....111..794K
V (3K CMB)                 :    5098 +/-     27 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :    4906 +/-     24 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :    5065 +/-     26 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :    5092 +/-     27 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where H_o =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :    65.5 +/-    4.6 Mpc      (m-M) = 34.08 +/- 0.15 mag
D (Local Group)            :    65.3 +/-    4.6 Mpc      (m-M) = 34.07 +/- 0.15 mag
D (3K CMB)                 :    69.8 +/-    4.9 Mpc      (m-M) = 34.22 +/- 0.15 mag
D (Virgo Infall only)      :    67.2 +/-    4.7 Mpc      (m-M) = 34.14 +/- 0.15 mag
D (Virgo + GA only)        :    69.4 +/-    4.9 Mpc      (m-M) = 34.21 +/- 0.15 mag
D (Virgo + GA + Shapley)   :    69.8 +/-    4.9 Mpc      (m-M) = 34.22 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :     318 pc/arcsec =  0.318 kpc/arcsec =  19.07 kpc/arcmin =   1.14 Mpc/degree
Scale (Local Group)        :     316 pc/arcsec =  0.316 kpc/arcsec =  18.98 kpc/arcmin =   1.14 Mpc/degree
Scale (3K CMB)             :     339 pc/arcsec =  0.339 kpc/arcsec =  20.32 kpc/arcmin =   1.22 Mpc/degree
Scale (Virgo Infall only)  :     326 pc/arcsec =  0.326 kpc/arcsec =  19.55 kpc/arcmin =   1.17 Mpc/degree
Scale (Virgo + GA only)    :     336 pc/arcsec =  0.336 kpc/arcsec =  20.18 kpc/arcmin =   1.21 Mpc/degree
Scale(Virgo + GA + Shapley):     338 pc/arcsec =  0.338 kpc/arcsec =  20.29 kpc/arcmin =   1.22 Mpc/degree











To Search for Nearby Objects (Physical Companions):
Enter Your Preferred Values and click on "Submit Environment Search" button 

Search for Objects within +/-arcmin where 100 kpc =  4.928 arcmin  
and Selected Redshift, defined by the Velocity Range:
from  to km/sec where V(Heliocentric) =   4865 km/sec  






Cosmology-Corrected Quantities [H_o =  73.00 km/sec/Mpc, Ω_matter =   0.27, Ω_vacuum =   0.73]
[Redshift 0.017006 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation]
Luminosity Distance        : 70.8 Mpc      (m-M) = 34.25 mag
Angular-Size Distance      : 68.4 Mpc      (m-M) = 34.18 mag
Co-Moving Radial Distance  : 69.6 Mpc      (m-M) = 34.21 mag
Co-Moving Tangential Dist. : 69.6 Mpc      (m-M) = 34.21 mag
Co-Moving Volume           : 0.00141 Gpc^3
Light Travel-Time          :    0.225 Gyr
Age at Redshift 0.017006   :   13.074 Gyr
Age of Universe            :   13.299 Gyr
Scale (Cosmology Corrected):     332 pc/arcsec =  0.332 kpc/arcsec =  19.91 kpc/arcmin =   1.19 Mpc/degree
Surface Brightness Dimming : Flux Density per Unit Area =  0.93477; Magnitude per Unit Area = 0.07324 mag







To change Cosmological Input Parameters for Derived Quantities:
Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button 

H_oΩ_matterΩ_vacuum
    


Correct Redshift To the Reference Frame defined by:

as Input for Calculation of the Distances and Cosmology-Corrected Quantities

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for NGC 2557 (Back to INDEX)

The brightest flux in each of the following spectral regions, when available:
Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

Spectral Region	Band	Apparent Mag or Flux	Refcode	Absolute Mag or νL_ν [W]	νL_ν [L_☉(Bolometric)]
X-Ray	0.2-2 keV (ROSAT)	1.6050E-13 +/- 9.2 % erg/s/cm^2^	2000WGA...C...0000W	1.00E+34 +/- 1.05E+33 [W]	2.60E+07 +/- 2.73E+06
Ultraviolet	NUV (GALEX) AB	19.6146 +/- 0.172408 mag	2012GASC..C...0000S	-14.68 +/- 0.21 [mag]	1.08E+08 +/- 1.81E+07
Visual	z (SDSS Model) AB	12.065 +/- 0.002 asinh mag	2006SDSS5.C...0000:	-22.23 +/- 0.13 [mag]	2.80E+10 +/- 1.44E+09
Near-Infrared	H	9.982 +/- 0.021 mag	20032MASX.C.......:	-24.31 +/- 0.13 [mag]	3.07E+10 +/- 1.68E+09
Mid-Infrared	8.0 microns (IRAC)	7.3936E+03 +/- 1.7874E+01 microJy	2013SSTSLC4.2....0C	1.75E+35 +/- 9.00E+33 [W]	4.56E+08 +/- 2.34E+07

NOTE: The above quantities are derived using an estimated Distance Modulus of (34.29 +/- 0.08) mag corresponding to
a Metric Distance of (72.150 +/- 2.616) Mpc using the Average NED-D value.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 77 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 2557 (Back to INDEX)

The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband	Apparent Major Axis (2a) [arcsec]	Apparent Minor Axis (2b) [arcsec]	PA [degrees] (J2000.0)	Reference Level	Refcode	Physical Major Axis (2a) [kpc]	Physical Minor Axis (2b) [kpc]
r (SDSS Isophotal)	79.13	62.51	45	25.0 mag arcsec^-2^	2006SDSS5.C...0000:	27.68	21.87
K_s (2MASS "total")	91.50	67.71	40	Diameter for "total" magnitude 20032MASX.C.......:	20032MASX.C.......:	32.01	23.68

NOTE: Physical diameters are derived using a scale of 0.3498 kpc/arcsec based on Average NED-D Metric Distance of (72.150 +/- 2.616) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 15 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 2557 Help (Back to INDEX)

Resources for Object Names	Site/Service
Query SIMBAD by primary NED object name -- NGC 2557	SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 2557	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Uppsala General Catalog -- UGC 04330	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Original Zwicky Catalog -- CGCG 119-048	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query UZC Spectral Archive (60 arcsec search radius)	Updated Zwicky Catalog Data (Harvard/SAO)
Morphological Catalog of Galaxies -- MCG +04-20-021	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
2MASS Extended Source Images (JHKs) -- 2MASX J08191074+2126085	NASA/IPAC Infrared Science Archive (IRSA)
2MASS Extended Source Images (JHKs) -- 2MASXi J0819111+212610	NASA/IPAC Infrared Science Archive (IRSA)
version	SDSS Sky Server
Catalogue of Principal Galaxies -- PGC 023329	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 023329	The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 2557	GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 2557	NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 08h19m10.7s, +21d26m09s (J2000)	Site/Service
Query Optical and UV Mission Archives (Default search radius)	Multimission Archive at STScI (MAST)
Query High Energy Mission Archives (Default search radius)	HEASARC (NASA/GSFC)
Explore resources with DataScope (15 arcmin search radius)	HEASARC (NASA/GSFC)
version	SDSS Sky Server
Query IRSA for WISE images (10 arcmin search radius)	NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:	NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:	NASA/IPAC Infrared Science Archive (IRSA)
	NASA/IPAC Infrared Science Archive (IRSA)
Size: Contours (PS) JPEG FITS File	NRAO/VLA Sky Survey (NVSS)
	The NRAO Data Archive System

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NED results for object NGC 2557

1 objects found in NED.

Detailed information for each object