1938 Lausanna
| Discovery Synodic rotation period | 2.748±0.001 h[a] 2.748±0.001 h[6] | |
|---|---|---|
| 0.1660±0.0301[5] 0.192±0.055[4] 0.24 (assumed)[3] | ||
| S[3][7] | ||
| 12.60±0.26[7] · 12.7[1][3] · 13.0[5] | ||
1938 Lausanna, provisional designation 1974 HC, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 19 April 1974, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland.[8] It is named for the city of Lausanne.[2]
Orbit and classification
Lausanna is a
Johannesburg Observatory in 1934, extending the body's observation arc by 40 years prior to its official discovery observation at Zimmerwald.[8]
Physical characteristics
Rotation period
In March 2014, two rotational
asteroids.Diameter and albedo
According to the space-based survey carried out by NASA's
albedo of 0.166 and 0.192, respectively.[4][5] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of its family – and calculates a diameter of 7.82 kilometers based on an absolute magnitude of 12.7.[3]
Naming
This
M.P.C. 4358).[9]
Notes
- ^ a b Skiff (2014) web: rotation period 2.748±0.001 hours with a brightness amplitude of 0.13 mag and a Quality Code of 3-. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1938) Lausanna
References
- ^ a b c d "JPL Small-Body Database Browser: 1938 Lausanna (1974 HC)" (2017-05-06 last obs.). Jet Propulsion Laboratory. Retrieved 10 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (1938) Lausanna". Asteroid Lightcurve Database (LCDB). Retrieved 26 January 2017.
- ^ . Retrieved 26 January 2017.
- ^ .
- ^ ISSN 1052-8091. Retrieved 26 January 2017.
- ^ . Retrieved 26 January 2017.
- ^ a b "1938 Lausanna (1974 HC)". Minor Planet Center. Retrieved 26 January 2017.
- ISBN 978-3-642-01964-7.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 21 July 2011 at the Wayback Machine)
- 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
- 1938 Lausanna at AstDyS-2, Asteroids—Dynamic Site
- 1938 Lausanna at the JPL Small-Body Database
