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NASA/IPAC EXTRAGALACTIC DATABASE Date and Time of the Query: 2019-04-25 T22:51:47 PDT Help | Comment | NED Home

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Velocity(km/s): Unconstrained
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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

Detailed Information for Object No. 1

INDEX for NGC 1649

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

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

Detailed Data (NED queries):

6 Photometric data point(s) and SED

Spectra
Redshift-Independent Distances
16 Reference(s)
2 Position data point(s)
1 Diameter data point(s)

ESSENTIAL NOTE for NGC 1649 (Back to INDEX)

In the Large Magellanic Cloud.

CROSS-IDENTIFICATIONS for NGC 1649 (Back to INDEX)

Object Names	Type	Object Names	Type
NGC 1649	*Cl	ESO 055-SC 032	*Cl
NGC 1652	*Cl	GALEXASC J043822.88-684021.8	UvS
GALEXMSC J043822.95-684021.2	UvS

COORDINATES for NGC 1649 (Back to INDEX)

Position Reference:1982ESOU..C...0000L

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)    69.62500   -68.77000  04h38m30.00s  -68d46m12.0s  7.50E+00  7.50E+00    0
Equatorial (J2000.0)    69.59521   -68.67292  04h38m22.85s  -68d40m22.5s  7.50E+00  7.50E+00    0
Ecliptic   (B1950.0)   334.75443   -81.98760                              7.50E+00  7.50E+00    0
Ecliptic   (J2000.0)   335.49717   -81.98970                              7.50E+00  7.50E+00    0
Galactic               280.53950   -37.03445                              7.50E+00  7.50E+00    0
SuperGalactic          220.51270   -32.81431                              7.50E+00  7.50E+00    0

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

REDSHIFT-INDEPENDENT DISTANCES for NGC 1649 (Back to INDEX)

1 Distances found in NED View 1 Individual Distance Measurement(s) for NGC 1649

Summary Statistics computed by NED from 1 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 1649	Distance Modulus (mag)	Metric Distance (Mpc)
Mean	18.48	0.050
Std. Dev.	N/A	N/A
Min.	18.48	0.050
Max.	18.48	0.050
Median	18.48	0.050

CLASSIFICATIONS (TYPES, ATTRIBUTES) for NGC 1649 (Back to INDEX)

Type	As Published	NED Homogenized	Flag	Reference Code
Distance Indicator	CMD	CMD	...	2009A&A...497..755M

1 Detailed Classification(s)

FOREGROUND GALACTIC EXTINCTION for NGC 1649 (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.

WARNING: This position is 248.796 arc minutes from the center of the LMC.
The value of E(B-V) is not derived from the IRAS/COBE extinction maps. 
See 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] 0.325 0.272 0.206 0.163 0.113 0.318 0.248 0.171 0.127 0.095 0.053 0.034 0.023 0.011

  

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

Bandpass [µm] A_λ [mag]
Landolt U (0.35)  0.325
Landolt B (0.43)  0.272
Landolt V (0.54)  0.206
Landolt R (0.64)  0.163
Landolt I (0.80)  0.113
CTIO U (0.37)  0.308
CTIO B (0.43)  0.273
CTIO V (0.55)  0.201
CTIO R (0.65)  0.159
CTIO I (0.80)  0.114
UKIRT J (1.25)  0.053
UKIRT H (1.66)  0.034
UKIRT K (2.19)  0.023
UKIRT L' (3.78)  0.011
Gunn g (0.52)  0.219
Gunn r (0.66)  0.154
Gunn i (0.79)  0.117
Gunn z (0.91)  0.093
Spinrad R_S (0.69)  0.144
Stromgren u (0.35)  0.323
Stromgren b (0.47)  0.251
Stromgren v (0.41)  0.284
Stromgren beta (0.49)  0.239
Stromgren y (0.55)  0.201
SDSS u (0.36)  0.318
SDSS g (0.47)  0.248
SDSS r (0.62)  0.171
SDSS i (0.75)  0.127
SDSS z (0.89)  0.095
DSS-II g (0.46)  0.254
DSS-II r (0.65)  0.157
DSS-II i (0.81)  0.112
PS1 g (0.49)  0.238
PS1 r (0.62)  0.170
PS1 i (0.75)  0.126
PS1 z (0.87)  0.099
PS1 y (0.97)  0.082
PS1 w (0.62)  0.176
LSST u (0.37)  0.311
LSST g (0.48)  0.243
LSST r (0.62)  0.170
LSST i (0.75)  0.126
LSST z (0.87)  0.099
LSST y (0.97)  0.082
WFPC2 F300W (0.31)  0.368
WFPC2 F450W (0.46)  0.256
WFPC2 F555W (0.54)  0.207
WFPC2 F606W (0.60)  0.181
WFPC2 F702W (0.69)  0.146
WFPC2 F814W (0.79)  0.116
WFC3 F105W (1.04)  0.073
WFC3 F110W (1.12)  0.066
WFC3 F125W (1.23)  0.054
WFC3 F140W (1.37)  0.046
WFC3 F160W (1.53)  0.038
WFC3 F200LP (0.55)  0.222
WFC3 F218W (0.22)  0.582
WFC3 F225W (0.24)  0.524
WFC3 F275W (0.27)  0.412
WFC3 F300X (0.29)  0.392
WFC3 F336W (0.34)  0.334
WFC3 F350LP (0.59)  0.197
WFC3 F390W (0.40)  0.292
WFC3 F438W (0.43)  0.272
WFC3 F475W (0.48)  0.244
WFC3 F475X (0.50)  0.234
WFC3 F555W (0.53)  0.214
WFC3 F600LP (0.74)  0.134
WFC3 F606W (0.59)  0.187
WFC3 F625W (0.62)  0.169
WFC3 F775W (0.76)  0.123
WFC3 F814W (0.80)  0.115
WFC3 F850LP (0.91)  0.091
ACS clear (0.62)  0.183
ACS F435W (0.43)  0.271
ACS F475W (0.48)  0.245
ACS F550M (0.56)  0.197
ACS F555W (0.54)  0.209
ACS F606W (0.59)  0.185
ACS F625W (0.63)  0.166
ACS F775W (0.77)  0.122
ACS F814W (0.80)  0.114
ACS F850LP (0.90)  0.093
DES g (0.48)  0.243
DES r (0.64)  0.163
DES i (0.78)  0.120
DES z (0.91)  0.091
DES Y (0.99)  0.079


For completeness, we include the original SFD98 values:
WARNING: This position is 248.796 arc minutes from the center of the LMC.
The value of E(B-V) is not derived from the IRAS/COBE extinction maps. 
See SFD98.

     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] 0.408 0.324 0.249 0.200 0.146 0.387 0.284 0.206 0.156 0.111 0.068 0.043 0.028 0.011


Galactic Extinction based on H I Column Densities and Galaxy Counts 
(Burstein & Heiles; 1982AJ.....87.1165B) assuming R_v = 3.1:
A_B = 0.220 mag 

See Notes on Galactic Extinction for important caveats.

BASIC DATA for NGC 1649 (Back to INDEX)


Description                : LMC open cluster    
Magnitude and Filter       : 13.1V
Spare 3                    :  1.5:
Spare 4                    :      

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:
6 photometric data point(s)      1 Diameter data point(s)

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for NGC 1649 (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)]
Ultraviolet	NUV (GALEX) AB	16.2215 +/- 0.00806963 mag	2012GMSC..C...0000S	-2.26 +/- 0.01 [mag]	1.18E+03 +/- 8.79E+00

NOTE: The above quantities are derived using an estimated Distance Modulus of (18.48 +/- N/A) mag corresponding to
a Metric Distance of (0.050 +/- N/A) 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 6 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for NGC 1649 (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]
ESO-Uppsala "Quick Blue" IIa-O	90.00	...	...	About 25.5 B-mag arcsec^-2^	1982ESOU..C...0000L	0.02	...

NOTE: Physical diameters are derived using a scale of 0.0002 kpc/arcsec based on Average NED-D Metric Distance of (0.050 +/- N/A) Mpc.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 1 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for NGC 1649 Help (Back to INDEX)

Resources for Object Names	Site/Service
Query SIMBAD by primary NED object name -- NGC 1649	SIMBAD (CDS, Strasbourg, France)
Revised New General Catalogue -- NGC 1649	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Revised New General Catalogue -- NGC 1652	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
ESO/Uppsala Survey -- ESO 055-SC 032	VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- NGC 1649	GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- NGC 1649	NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 04h38m22.8s, -68d40m23s (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)
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)
	The NRAO Data Archive System

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