NGC 247
From time to time I obtain data sets from remote observatories. One of my favorite providers is Telescope Live with telescopes in e.g. Chile, Australia, and Spain. One of the data sets I received, was data from the galaxy NGC 247, located in the constellation Cetus.
The images were taken with the following equipment (Telescope Live CHI-1):
| Location | El Sauce Observatory, Chile |
| Telescope | Planwave CDK24 |
| Focal length [mm] | 3900 |
| Focal ratio | 6.5 |
| Mount | Mathis MI-1000/1250 |
| Camera | FLI Proline 9000 |
| Filter | L:R:G:B:Hα |
| Exposure time [min] | 280:280:290:300:290 |
| Resolution | 0.62″/px |
Data calibration and registration and the final processing was done with PixInsight. The result was as follows:
In the field were quiet a lot of quasars (see annotation). The two most distant of them are:
XWAS J004725.3-205442 with a redshift of 2.102 and an apparent magB of 20.77 (2017,PASA,34,25).
MQ J004744.44-205320.4 with a redshift of 2.0 and an apparent magB of 20.87 (2017,PASA,34,25).
The faintest object in this image has an apparent magnitude of approx. 22.7 magB (2017,PASA,34,25).
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