942 Romilda
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Romilda
)
| Discovery Perihelion | 2.6321 AU | |
|---|---|---|
| 3.1655 AU | ||
| Eccentricity | 0.1685 | |
| 5.63 yr (2,057 d) | ||
| 258.14° | ||
| 0° 10m 30s / day | ||
| Inclination | 10.560° | |
| 71.342° | ||
| 319.36° | ||
| Physical characteristics | ||
Mean diameter | ||
Synodic rotation period | 6.965±0.003 h[8][9] | |
| C (assumed)[8] | ||
| 11.0[1][3] | ||
942 Romilda (Lahrer Hinkender Bote.[2]
Orbit and classification
Romilda is a non-
semi-major axis of 3.17 AU). Its orbit has an eccentricity of 0.17 and an inclination of 11° with respect to the ecliptic.[3]
Discovery
On 11 October 1920, Romilda was discovered by
Heidelberg Observatory on 21 October 1920, the night after its official discovery observation.[1]
Naming
This
The Annunciation to the Blessed Virgin Mary; German: Mariä Verkündigung).[11]
Reinmuth's calendar names
As with 22 other asteroids – starting with
Lutz Schmadel, the author of the Dictionary of Minor Planet Names learned about Reinmuth's source of inspiration from private communications with Dutch astronomer Ingrid van Houten-Groeneveld, who worked as a young astronomer at Heidelberg.[2]
Physical characteristics
Romilda is an assumed carbonaceous C-type asteroid.[8]
Rotation period
In December 2005, a rotational
U=2).[12]
Diameter and albedo
According to the surveys carried out by the Japanese
albedo of (0.108±0.012) and (0.121±0.026), respectively.[6][7] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 35.12 km based on an absolute magnitude of 11.[8] Further published mean-diameters and albedos by the WISE team include (29.756±8.321 km), (33.86±7.45 km), (37.12±0.27 km), and (40.832±0.392 km) with corresponding albedos of (0.0521±0.0541), (0.06±0.03), (0.056±0.006), and (0.0804±0.0074).[5][8]
References
- ^ a b c d e f "942 Romilda (A920 TG)". Minor Planet Center. Retrieved 16 February 2020.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d "JPL Small-Body Database Browser: 942 Romilda (A920 TG)" (2019-05-11 last obs.). Jet Propulsion Laboratory. Retrieved 16 February 2020.
- ^ a b "Asteroid 942 Romilda – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 16 February 2020.
- ^ a b c "Asteroid 942 Romilda". Small Bodies Data Ferret. Retrieved 16 February 2020.
- ^ )
- ^ .
- ^ a b c d e "LCDB Data for (942) Romilda". Asteroid Lightcurve Database (LCDB). Retrieved 16 February 2020.
- ^ Bibcode:2007MPBu...34...47C.
- ^ "Lahrer hinkender Bote – Kalender 1925". Badischen Landesbibliothek. 1925. p. 1. Retrieved 10 February 2020. Lahrer Bote archive
- ^ "Lahrer hinkender Bote – Kalender 1925". Badischen Landesbibliothek. 1925. p. 6. Retrieved 10 February 2020.
- ^ Behrend, Raoul. "Asteroids and comets rotation curves – (942) Romilda". Geneva Observatory. Retrieved 16 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 – Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 942 Romilda at AstDyS-2, Asteroids—Dynamic Site
- 942 Romilda at the JPL Small-Body Database
