| Original recorded date: |
1911-11-21 |
| Number of exposures: |
1 |
| Observatory name: |
Astrophysikalische Observatorium Potsdam |
| Observatory site name: |
Potsdam-Telegrafenberg |
| East longitude of the observing site: |
13.06417 deg |
| Latitude of the observing site: |
52.38056 deg |
| Elevation of the observatory site: |
107.0 m |
| Clear aperture of the telescope: |
0.15 m |
| Focal length of the telescope: |
1.5 m |
| Plate scale of the telescope: |
137.0 arcsec/mm |
| Instrument name: |
|
| Observation filter: |
|
| Observation method code (following WFPDB): |
|
| Observation prism used: |
|
| Used grating: |
|
| Air temperature: |
4.6 |
| Calmness (seeing conditions): |
|
| Sharpness: |
|
| Transparency: |
|
| Notes on sky conditions: |
hazy sky |