| MPC Designation: |
319 Leona |
| Period (h): |
P1 = 627.0 h
± 3.0 h |
| Amplitude (mag): |
A1 = 0.6 mag
± 0.03 mag |
| Filter: |
Clear (R) |
| Telescope: |
0.35m SCT at f/4 |
| Camera: |
SBIG ST-8E |
| Exposure: |
120 s |
| Observation
Details: |
| Date |
Phase |
PABL |
PABB |
| 2010/10/26
14:00:00 |
3.1 |
34.8 |
-6.7 |
| 2010/12/05
14:00:00 |
15.0 |
36.8 |
-8.2 |
| 2011/01/08
14:00:00 |
21.0 |
42.2 |
-8.7 |
|
| Data Points: |
321 |
| Discovered: |
08 October 1891 by Auguste Charlois
at Nice, France |
| Family/Group: |
Cybele |
| Taxonomic Class: |
|
| Published: |
Minor Planet Bulletin |
Notes
Unadjusted Sessions fit a period of 627h at Orders 2 and 617.0h at
Orders 3. Sessions adjusted
by up to 0.05mag (limit of catalogue precision) to match the raw
curve and produced the period shown here. Data point
12/12/2010 is offset by 0.1mag. Images have been measured 3
times with different comp stars and no obvious reason for
discrepancy. The long duration was also indicated when this
target was observed in 2004 seen here. Further
observations were not undertaken at that time as long period targets were beyond
the capabilities of HHO at that time.
Plots and Data are copyright (2001-2011) David J Higgins.
|
