| Target: |
M108, galaxy | Date: | 26.1.2009 |
| Time: | 23:40 .. 0:33 (26.1.) [UTC] | ||
| Location: | Frankfurt am Main, Germany | ||
| Conditions: | T -2°C, RH 90%. | ||
| Telescope: | Newton 150mm, f5 (GSO) | Mount: | Sky-Watcher EQ6 Pro in EQASCOM control |
| Camera: | Art-429 (beta). Mode 1x1. TEC set to -8K delta-T. |
Filters: | None |
| Exposure: |
48min (1.5min sub-exposures). Guided with 70/500mm achromatic refractor, modified webcam (SC3) and PHD Guiding to EQASCOM (pulseguide) |
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| Processing: | Unsharp masking for the galaxy to enhance details. | ||
| Images: |
 |
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| Notes: | |||
| Target: | M108, galaxy | Date: | 2.5.2004 |
| Time: | - | ||
| Location: | Vantaa, Finland | ||
| Conditions: | Naked eye limit magnitude ~3..3.5 | ||
| Telescope: | N150 f5 (GSO) | Mount: | GEM w RA stepper motor (Sky-View) |
| Camera: | SC2 webcam (PCVC840K). Raw color mode |
Filters: | Baader #2459207 UV/IR-cut |
| Exposure: | 160 x 20s and 140x20s (out of 200), dark frame and flat fiel. Unguided. | ||
| Processing: | See notes. | ||
| Images: |
  full resolution images displayed |
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| Notes: | Both pictures are from same set of exposures with different processing,. Larger picture was stacked in Registax and post-processed in Photoshop. Final size reduced to 75%. Smaller picture was stacked in K3CCDTools2. Processed in Iris; removal of diagonal banding by FFT-method. Post-Processed in Photoshop. Cropped keeping the original resolution. | ||