1177 Gonnessia
| Discovery U–B = 0.244[1] | |
|---|---|
| 8.86±0.13 (R)[a] · 9.24[3] · 9.24±0.139[14] · 9.30[4][5][7] · 9.35[6] · 9.4[1] · 9.66±0.60[13] | |
1177 Gonnessia, provisional designation 1930 WA, is a dark background
Algiers Observatory in Algeria, North Africa, and named after astronomer François Gonnessiat.[2][15]
Orbit and classification
Gonnessia is not a member of any known asteroid family. It orbits the Sun in the outer main-belt at a distance of 3.2–3.5 AU once every 6 years and 2 months (2,238 days). Its orbit has an eccentricity of 0.03 and an inclination of 15° with respect to the ecliptic.[1]
The asteroid was first observed as A923 RO at
Heidelberg Observatory, three weeks after its official discovery observation at Algiers Bouzaréah.[15]
Physical characteristics
In the
PanSTARRS photometric survey.[13]
Lightcurve photometry
Several rotational
, Gonnessia has a notably slower spin rate than most asteroids.Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite
The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is an albedo of 0.0398 with a diameter of 91.98 kilometers. It also takes Petr Pravec's revised absolute magnitude from WISE of 9.24.[3][4][14]
Naming
This
H 109).[2]
Notes
- ^ a b c Pravec (2011) web: rotation period 30.51 hours with a brightness amplitude of 0.1 mag in August 2008. Period was fixed at Stephens' value. Absolute magnitude of 8.86. mag. Summary figures for (1177) Gonnessia at Collaborative Asteroid Lightcurve Link and Ondrejov Asteroid Photometry Project
- ^ a b Lightcurve plot of 1177 Gonnessia, from the Palmer Divide Observatory, by Brian D. Warner (2002)
References
- ^ a b c d e f g h i "JPL Small-Body Database Browser: 1177 Gonnessia (1930 WA)" (2017-03-29 last obs.). Jet Propulsion Laboratory. Retrieved 26 August 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d "LCDB Data for (1177) Gonnessia". Asteroid Lightcurve Database (LCDB). Retrieved 26 August 2017.
- ^ Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
- ^ )
- ^ .
- ^ S2CID 9341381. Retrieved 26 August 2017.
- ISSN 1052-8091. Retrieved 26 August 2017.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1177) Gonnessia". Geneva Observatory. Retrieved 26 August 2017.
- ^ ISSN 1052-8091. Retrieved 26 August 2017.
- ^ ISSN 1052-8091. Retrieved 26 August 2017.
- ^ ISSN 1052-8091. Retrieved 26 August 2017.
- ^ S2CID 53493339. Retrieved 26 August 2017.
- ^ . Retrieved 26 August 2017.
- ^ a b "1177 Gonnessia (1930 WA)". Minor Planet Center. Retrieved 26 August 2017.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 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
- 1177 Gonnessia at AstDyS-2, Asteroids—Dynamic Site
- 1177 Gonnessia at the JPL Small-Body Database
