Astronomy:548 Kressida
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Short description: Minor planet
| Discovery | |
|---|---|
| Discovered by | Paul Götz |
| Discovery site | Heidelberg |
| Discovery date | 14 October 1904 |
| Designations | |
| (548) Kressida | |
| Pronunciation | /ˈkrɛsɪdə/ |
| 1904 PC | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 111.50 yr (40725 d) |
| |{{{apsis}}}|helion}} | 2.7051 astronomical unit|AU (404.68 Gm) |
| |{{{apsis}}}|helion}} | 1.8592 AU (278.13 Gm) |
| 2.2822 AU (341.41 Gm) | |
| Eccentricity | 0.18534 |
| Orbital period | 3.45 yr (1,259.3 d) |
| Mean anomaly | 128.11° |
| Mean motion | 0° 17m 9.168s / day |
| Inclination | 3.8722° |
| Longitude of ascending node | 108.436° |
| 320.351° | |
| Physical characteristics | |
| Dimensions | 14.0±1.9 km |
| Rotation period | 11.9404 h (0.49752 d) |
| S | |
| Absolute magnitude (H) | 11.26 |
Kressida (minor planet designation: 548 Kressida) is a minor planet orbiting the Sun. This object was discovered by German astronomer Paul Götz in 1904.[2] It is named after the theatrical character Cressida. This stony S-type asteroid is orbiting at a distance of 2.28 astronomical unit|AU from the Sun, with an orbital eccentricity (ovalness) of 0.185 and a period of 3.45 yr. The orbital plane is inclined at an angle of 3.87° to the ecliptic.[1]
Photometric observations of this asteroid from 2021 were used to produce a light curve showing a rotation period of 11.930±0.017 h with a brightness amplitude of 0.44±0.02 in magnitude.[2]
References
- ↑ 1.0 1.1 "548 Kressida (1904 PC)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=548.
- ↑ 2.0 2.1 Colazo, Milagros et al. (April 2022). "Photometry and Light Curve Analysis of Six Asteroids by GORA'S Observatories". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 49 (2): 125–127. Bibcode: 2022MPBu...49..125C.
External links
- 548 Kressida at AstDyS-2, Asteroids—Dynamic Site
- 548 Kressida at the JPL Small-Body Database
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