Global Information196 Philomela information
 A three-dimensional model of 196 Philomela based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters, 1879 |
| Discovery date | 14 May 1879 |
| Designations | |
MPC designation | (196) Philomela |
| Pronunciation | /fɪloʊˈmiːlə/[1] |
Alternative designations | A879 JA; 1934 JO |
Minor planet category | Main belt |
| Adjectives | Philomelian /fɪloʊˈmiːliən/[1] |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 136.91 yr (50005 d) |
| Aphelion | 3.1723 AU (474.57 Gm) |
| Perihelion | 3.0630 AU (458.22 Gm) |
Semi-major axis | 3.1177 AU (466.40 Gm) |
| Eccentricity | 0.017530 |
Orbital period (sidereal) | 5.50 yr (2010.7 d) |
Mean anomaly | 276.49° |
Mean motion | 0° 10m 44.544s / day |
| Inclination | 7.2554° |
Longitude of ascending node | 72.384° |
Argument of perihelion | 195.69° |
| Earth MOID | 2.04771 AU (306.333 Gm) |
| Jupiter MOID | 1.83421 AU (274.394 Gm) |
| TJupiter | 3.204 |
| Physical characteristics | |
| Dimensions | 136.39±6.3 km[2] 145.29 ± 7.71 km[3] |
| Mass | (4.00 ± 1.53) × 1018 kg[3] |
Mean density | 2.48 ± 1.02 g/cm3[3] |
Synodic rotation period | 8.3340 h (0.34725 d)[2] 8.332827 hours[4] |
Geometric albedo | 0.2299±0.023 |
Spectral type | S |
Absolute magnitude (H) | 6.54 |
196 Philomela is a large and bright main-belt asteroid. It is an S-type asteroid. [citation needed]
It was discovered by C. H. F. Peters on May 14, 1879, in Clinton, New York and named after Philomela, the woman who became a nightingale in Greek mythology.[5]
In the late 1990s, a network of astronomers worldwide gathered light curve data that was ultimately used to derive the spin states and shape models of 10 new asteroids, including 196 Philomela. The shape model for this asteroid is described as asymmetrical and smooth, while the light curve varies by up to 0.4 in magnitude.[4][6]
To date there have been two reported Philomelian stellar occultations.[citation needed]
- ^ a b "Philomel, Philomela". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- ^ a b c "196 Philomela". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ a b c Cite error: The named reference
Carry2012was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Durech2007was invoked but never defined (see the help page). - ^ Schmadel Lutz D. Dictionary of Minor Planet Names (fifth edition), Springer, 2003. ISBN 3-540-00238-3.
- ^ Durech, J.; Kaasalainen, M.; Marciniak, A.; Allen, W. H. et al. "Asteroid brightness and geometry," Astronomy and Astrophysics, Volume 465, Issue 1, April I 2007, pp. 331-337.