NGC2991 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 |
|---|---|---|---|---|---|---|
| 1301079 | NGC2991_GROUP | 146.7045320 | 22.0130813 | 1.229 | 3.686 | 2 |
Group Members
| SGA ID | Galaxy | Visual Morphology |
RA (degree) |
Dec (degree) |
HyperLeda |
|---|---|---|---|---|---|
| 36773 | NGC2988 | Sbc | 146.6998510 | 22.0121351 | Link | 1301079 | NGC2991 | S0 | 146.7088337 | 22.0139390 | 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) |
| 36773 | NGC2988 | SER | 3.12 | 23.264 | 36.3 | 0.679 | 27.423 | 36.6 | 0.641 | 46.527 | 36.3 | 0.679 | 34.682 | 47.643 | 59.964 | 19.019 | 16.537 | 14.752 |
| 1301079 | NGC2991 | SER | 5.00 | 13.828 | 10.1 | 0.059 | 29.588 | 124.3 | 0.187 | 58.801 | 99.8 | 0.183 | 38.675 | 53.016 | 70.232 | 11.655 | 10.712 | 9.420 |
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 |
| 36773 | NGC2988 | 15.025 | 14.117 | 13.364 | 15.288 | 14.416 | 13.717 | 15.173 | 14.319 | 13.635 | 15.108 | 14.263 | 13.589 | 14.908 | 14.127 | 13.493 |
| 1301079 | NGC2991 | 13.452 | 12.614 | 11.974 | 13.701 | 12.873 | 12.244 | 13.615 | 12.794 | 12.172 | 13.563 | 12.747 | 12.133 | 13.495 | 12.686 | 12.085 |
NGC2988 (SGA ID 36773)
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NGC2991 (SGA ID 1301079)
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