Astronomy:912 Maritima
From HandWiki
| Discovery[1] | |
|---|---|
| Discovered by | A. Schwassmann Bergedorf |
| Discovery date | 27 April 1919 |
| Designations | |
| (912) Maritima | |
| Pronunciation | /məˈrɪtɪmə/[2] |
| Minor planet category | Main belt[1] |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.59 yr (31263 days) |
| |{{{apsis}}}|helion}} | 3.6842 astronomical unit|AU (551.15 Gm) (Q) |
| |{{{apsis}}}|helion}} | 2.5842 AU (386.59 Gm) (q) |
| 3.1342 AU (468.87 Gm) (a) | |
| Eccentricity | 0.17548 (e) |
| Orbital period | 5.55 yr (2026.7 d) |
| Mean anomaly | 282.25° (M) |
| Mean motion | 0° 10m 39.468s / day (n) |
| Inclination | 18.344° (i) |
| Longitude of ascending node | 34.032° (Ω) |
| 88.889° (ω) | |
| Physical characteristics | |
| Mean radius | 41.585±1 km (IRAS) |
| Rotation period | 1,332 h (55.5 d)[1][3] |
| Geometric albedo | 0.1115±0.006[1] |
| C[1] | |
| Apparent magnitude | 13.3 to 16.9 |
| Absolute magnitude (H) | 9.3[1] |
912 Maritima is an asteroid in the asteroid belt. Based on lightcurve studies observing Maritima over a three-month period, Maritima has a rotation period of 1332 hours.[1] Analysis reveals a possible synodic period of 1332±5 h.[3] Superslow rotators, those with periods longer than a few days, are generally small asteroids.[3] The current paradigm is that slowing of an asteroid's spin rate is the result of YORP radiation pressure, which acts on the target as the inverse square of its size and the inverse of its semi-major axis.[3] The rotation period is less than conclusive.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "JPL Small-Body Database Browser: 912 Maritima (1919 FJ)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=912.
- ↑ Noah Webster (1884) A Practical Dictionary of the English Language
- ↑ 3.0 3.1 3.2 3.3 3.4 Higgins, David; Martinez, Luis (2011). "Period Determination of Asteroid 912 Maritima". The Minor Planet Bulletin 38 (2): 78–79. ISSN 1052-8091. Bibcode: 2011MPBu...38...78H.
External links
- Lightcurve plot of 912 Maritima, Palmer Divide Observatory, B. D. Warner (2005)
- Asteroid Lightcurve Database (LCDB), query form (info )
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 912 Maritima at AstDyS-2, Asteroids—Dynamic Site
- 912 Maritima at the JPL Small-Body Database
 |  |
