Messier 13 from my own „Sterntaucher“ observatory
My next project in 2019 was the globular cluster Messier 13 in the constellation Hercules.
![Messier 13 finder chart](https://wonderfuluniverse.de/wp-content/uploads/2019/05/hercules_m13.jpg)
Here is an overview of the used equipment and the exposure times:
Equipment | Telescope 1 | Telescope 2 |
Location and date | Krefeld, May 2019 | Krefeld, May 2019 |
Telescope/Lense | 10″ Newton ohne Namen | TSQ-65ED Apo |
Focal length [mm] | 1000 | 420 |
Focal ratio | 3.9 | 6.5 |
Mount | Skywatcher EQ8 | Skywatcher EQ8 |
Camera | Moravian G3 16200 FW | Moravian G2 8300 FW |
Autoguiding | DMK21 AU04 on TSQ-65ED | DMK21 AU04 on TSQ-65ED |
Filter | L | R:G:B |
Exposure time [min] | 420 | 170:180:130 |
Resolution | 1.23″/px | 2.63″/px |
Data calibration and registration and the final processing was done with PixInsight. The RGB Data was upscaled to the luminance data. The result was as follows:
M13
M13 cannotated
The two highest redshift quasars [Flesh 2015] in the image are:
SDSS J164411.85+361404.7 z=3.20 magG=20.4 (Gaia DR2)
SDSS J164250.78+360531.7 z=3.16 magG=19.3 (Gaia DR2)
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