347 Pariana is a large (51 km) Main belt asteroid. It is classified as an M-type asteroid.
It was discovered by Auguste Charlois on November 28, 1892 in Nice.
M-type asteroids are asteroids of partially known composition; they are moderately bright (albedo 0.1–0.2).
Some, but not all, are made of nickel-iron, either pure or mixed with small amounts of stone.
These are thought to be pieces of the metallic core of differentiated asteroids that were fragmented by impacts, and are thought to be the source of iron meteorites.
M-type asteroids are the third most common asteroid type (after C and S types).
Link to CdR-CdL website:
Observation Francois KUGEL with
Processing Jerome CARON with AsPyLib library.
- 80mm F/5 refractor
- ST8300 SBig CCD camera (2x2 binning)
- IR 742nm cut-off filter
||Official (MPC, Harris database)
||Measured (fit with 6 Fourier terms)
|Rotation period (hours)
||4.05236 +/- 0.00011
|Rotation period (days)
||0.168848 +/- 0.000005
|Amplitude of mag variations
||0.09 - 0.42
Magnitude during the observations: 12.2 to 12.5
Searching the period
Search of best fit using 4 harmonics.
The most likely period value is close to 0.1688 days. It corresponds to the official period.