Plate Information for b2312
| Observatory Name | Cambridge |
|---|---|
| W. Longitude (deg) | 71.1292 |
| Latitude (deg) | 42.38 |
| Aperture (m) | 0.2 |
| Scale (arcsec/mm) | 179.4 |
| Telescope | 8-inch Bache Doublet, Voigtlander, reworked by Clark |
| Plate Class | H |
| Photograph(s) of the Plate Jacket | View the plate jacket (7.9 MiB). View at reduced resolution |
| Photograph(s) of Plate and Annotations | View the plate photo (10.4 MiB). View at reduced resolution |
| Exposure Number | 0 |
|---|---|
| Exposure Time (minutes) | 90.00 |
| Right Ascension | 05:35:38.694 |
| Declination | -04:36:39.23 |
| Geocentric Date | 1888-02-07T01:57:57.9 JD: 2410674.58192 |
| Heliocentric Date | 1888-02-07T02:01:59.8 HJD: 2410674.58472 |
| Plate Center Source | imWCS |
| Date Source | Logbook |
| Exposure Notes | |
| Time Accuracy (days) | 0.0007 |
| Exposure Number | 0 |
|---|---|
| Exposure Time (minutes) | |
| Right Ascension | |
| declination | -5 |
| Date | Feb 6-7 1888 |
| Exposure Start Time | 5 35 |
| Exposure Stop Time | 7 05 |
| Exposure Hour Angle | 0 05 W |
| Logbook Remark | |
| Logbook Notes | |
| Error Type |
| No plate condition records present in the stacks database. |
| Date | Version ID | Picked Status | Stack Location | Event Notes | Valid |
|---|---|---|---|---|---|
| 2007-03-05T19:36:07 | 1 | Scanned | yes | ||
| 2016-04-15T12:37:44 | 1 | Picked | yes | ||
| 2016-06-08T14:09:53 | 1 | Picked | yes | ||
| 2016-06-09T16:53:43 | 1 | Picked | yes | ||
| 2016-09-08T16-00-10 | 1 | Plate JPEG | yes | ||
| 2016-09-08T16-00-20 | 1 | Jacket JPEG | yes | ||
| 2018-11-20T09-29-58 | 1 | Jacket JPEG | yes | ||
| 2018-11-20T09-30-09 | 1 | Plate JPEG | yes |
| Binned Plate Thumbnail | sorry, the binned mosaic (3 MiB) is not available due to temporary data access restrictions |
|---|---|
| Full Mosaic | sorry, the full mosaic (729 MiB) is not available due to temporary data access restrictions |
| Scan Number | 0 |
| Mosaic Number | 0 |
| Scan Date | 2007-03-05T19-36-07 |
| Average Tile ADU | 1882 |
| Average Tile Saturation (pixels) | 782 |
| Maximum Tile Saturation (pixels) | 20608 |
| Scan Comment | |
| Mosaic Comment | |
| Mosaic Binning | 01,16 |
| WCS Fit Solution | Available |
| Mosaic Rotation | 0 |