Notes to the given image data
| Date: | shown in the german convention: day.month.year, corresponding to exposure start in UT |
|---|---|
| Time: | given in UT (Universal Time) at start of first exposure.
UT corresponds to Greenwich Mean Time (longitude 0). Central European Time CET = UT + 1:00 (UT = UTC +- 1s) |
| Exposure: | Length of total integration time. It is given for each used filter, but each total integration time may consist of many exposures added together. |
| Field of View: | The shown field of view in the image in degrees (o) or arc minutes ('). 1o = 60'. X axis versus Y axis. This field is in most cases smaller than the total exposed field on the detector. |
| Receiver or Emulsion: | The used CCD camera system with number of pixels or the conventional film material. |
| Filter: | Most CCD images are taken through a Johnson-Cousins BVRI filter set. |
| Instrument, Optics: | The telescope aperture and eventually the focal length. For small photo optics the focal length f and the used focal ratio d/f is given as usual. |
| Observatory, Place: | evident |
| Observer: | evident |