NGC3987 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 |
|---|---|---|---|---|---|---|
| 1351080 | NGC3987_GROUP | 179.3402524 | 25.2039567 | 3.260 | 9.779 | 3 |
Group Members
| SGA ID | Galaxy | Visual Morphology |
RA (degree) |
Dec (degree) |
HyperLeda |
|---|---|---|---|---|---|
| 100318 | NGC3989 | Sbc | 179.3612959 | 25.2329905 | Link | 279423 | PGC1728785 | S0-a | 179.3182879 | 25.2073619 | Link | 1351080 | NGC3987 | SBb | 179.3366517 | 25.1949011 | 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) |
| 100318 | NGC3989 | SER | 1.03 | 9.093 | 121.9 | 0.497 | 22.757 | 122.5 | 0.502 | 25.889 | 122.8 | 0.546 | 21.669 | 27.249 | 33.249 | 9.675 | 9.539 | 9.329 |
| 279423 | PGC1728785 | SER | 3.21 | 3.141 | 142.6 | 0.143 | 11.353 | 120.2 | 0.360 | 13.208 | 116.5 | 0.340 | ... | ... | ... | ... | ... | ... |
| 1351080 | NGC3987 | SER | 0.50 | 35.860 | 58.1 | 0.803 | 81.681 | 59.2 | 0.751 | 87.875 | 57.8 | 0.807 | 74.240 | 107.092 | 142.261 | 47.349 | 44.584 | 37.452 |
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 |
| 100318 | NGC3989 | 15.537 | 14.980 | 14.558 | 15.603 | 15.059 | 14.675 | 15.536 | 14.993 | 14.610 | 15.502 | 14.957 | 14.575 | 15.479 | 14.926 | 14.547 |
| 279423 | PGC1728785 | 17.606 | 16.532 | 15.709 | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| 1351080 | NGC3987 | 13.814 | 12.918 | 11.989 | 14.311 | 13.563 | 12.675 | 14.166 | 13.444 | 12.596 | 14.076 | 13.358 | 12.531 | 14.033 | 13.328 | 12.518 |
NGC3989 (SGA ID 100318)
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PGC1728785 (SGA ID 279423)
Ellipse-fitting not done or failed.
NGC3987 (SGA ID 1351080)
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