NGC4239 Group
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Images & Catalogs
Group Properties
| SGA ID of Primary Galaxy |
Group Name | Group RA (degree) |
Group Dec (degree) |
Group Diameter (arcmin) |
Mosaic Diameter (arcmin) |
Number of Group Members |
|---|---|---|---|---|---|---|
| 264082 | NGC4239_GROUP | 184.3116256 | 16.5336176 | 1.498 | 4.493 | 2 |
Group Members
| SGA ID | Galaxy | Visual Morphology |
RA (degree) |
Dec (degree) |
HyperLeda |
|---|---|---|---|---|---|
| 74665 | PGC213964 | SBb | 184.3093888 | 16.5413413 | Link | 264082 | NGC4239 | E | 184.3122602 | 16.5313059 | Link |
Image Mosaics
Color mosaics showing the data (left panel), model (middle panel), and residuals (right panel).
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Elliptical Isophote Analysis
Geometry
This table provides several different measurements of the geometry and size of each galaxy.
Tractor |
HyperLeda |
Ellipse Moments |
Surface Brightness Threshold Radii (arcsec) |
Half-light Radii (arcsec) |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SGA ID | Galaxy |
Type | n | r(50) (arcsec) | PA (degree) | e | R(25) | PA (degree) | e |
Size (arcsec) | PA (degree) | e |
R(24) | R(25) | R(26) |
g(50) | r(50) | z(50) |
| 74665 | PGC213964 | SER | 3.89 | 4.972 | 99.3 | 0.684 | 12.137 | 97.5 | 0.619 | 14.726 | 96.2 | 0.725 | ... | ... | ... | ... | ... | ... |
| 264082 | NGC4239 | SER | 2.65 | 15.673 | 114.9 | 0.471 | 40.656 | 117.4 | 0.417 | 55.639 | 115.3 | 0.439 | 58.689 | 77.056 | 96.643 | 19.925 | 19.347 | 18.240 |
Photometry
This table provides the Tractor model photometry and the cumulative flux measured within the R(24), R(25), and R(26) radii (corresponding to the semi-major axis length of the galaxy at the 24, 25, and 26 magnitude per square arcsec surface brightness threshold, respectively).
| Curve of Growth Photometry | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tractor Photometry | < R(24) | < R(25) | < R(26) | Integrated | ||||||||||||
| SGA ID | Galaxy | g | r | z | g | r | z | g | r | z | g | r | z | g | r | z |
| 74665 | PGC213964 | 17.313 | 16.295 | 15.479 | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| 264082 | NGC4239 | 13.322 | 12.606 | 12.085 | 13.321 | 12.610 | 12.106 | 13.234 | 12.527 | 12.028 | 13.191 | 12.485 | 11.988 | 13.156 | 12.451 | 11.957 |
PGC213964 (SGA ID 74665)
Ellipse-fitting not done or failed.
NGC4239 (SGA ID 264082)
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