907 Rhoda
| Discovery Perihelion | 2.3468 AU | |
|---|---|---|
| 2.8010 AU | ||
| Eccentricity | 0.1622 | |
| 4.69 yr (1,712 d) | ||
| 183.55° | ||
| 0° 12m 36.72s / day | ||
| Inclination | 19.525° | |
| 42.980° | ||
| 88.326° | ||
| Physical characteristics | ||
Mean diameter | ||
Synodic rotation period | 22.44±0.02 h[10][a] | |
| 9.7[1][4] | ||
907 Rhoda is a large
rotation period of 22.4 hours and is likely spherical in shape. It was named after Rhoda Barnard, wife of American astronomer Edward Emerson Barnard (1857–1923).[3]
Orbit and classification
Rhoda is a non-
semi-major axis of 2.8 AU). Its orbit has an eccentricity of 0.16 and an inclination of 20° with respect to the ecliptic.[4] The body's observation arc begins with its first observation as A901 BA (1901 BA) at the Heidelberg-Königstuhl State Observatory on 18 January 1901, where it was officially discovered almost 18 years later on 12 November 1918.[1]
Naming
This
H 88).[3]
Physical characteristics
In the
SMASS classification it is a Xk-subtype, which transitions from the X-type to the uncommon K-type asteroids.[4] In the Barucci-taxonomy, which classified a total of 438 asteroids in 1987, Rhoda is a C0-type.[6]
Rotation period
In April 2004, a rotational
Diameter and albedo
According to the survey carried out by the Infrared Astronomical Satellite
asteroid occultation, observed on 23 March 2009, gave a best-fit ellipse dimension of 63.0 × 63.0 kilometers.[6] These timed observations are taken when the asteroid passes in front of a distant star.[6]
Notes
- ^ a b Lightcurve plot of (907) Rhoda, Palmer Divide Observatory, B. D. Warner (2004). Rotation period 22.44±0.02 hours with a brightness amplitude of 0.16±0.02 mag. Quality code is 3. Summary figures at the LCDB.
References
- ^ a b c d e "907 Rhoda (A918 VA)". Minor Planet Center. Retrieved 24 February 2020.
- ^ Noah Webster (1884) A Practical Dictionary of the English Language
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f g h i "JPL Small-Body Database Browser: 907 Rhoda (A918 VA)" (2019-09-19 last obs.). Jet Propulsion Laboratory. Retrieved 24 February 2020.
- ^ a b "Asteroid 907 Rhoda – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 24 February 2020.
- ^ a b c d e f g "Asteroid 907 Rhoda". Small Bodies Data Ferret. Retrieved 24 February 2020.
- ^ Bibcode:2004PDSS...12.....T. Retrieved 24 February 2020.
- ^ )
- ^ .
- ^ ISSN 1052-8091.
- ^ a b c "LCDB Data for (907) Rhoda". Asteroid Lightcurve Database (LCDB). Retrieved 24 February 2020.
- ^ Behrend, Raoul. "Asteroids and comets rotation curves – (907) Rhoda". Geneva Observatory. Retrieved 24 February 2020.
External links
- Lightcurve Database Query (LCDB), at www.minorplanet.info
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 907 Rhoda at AstDyS-2, Asteroids—Dynamic Site
- 907 Rhoda at the JPL Small-Body Database
