Jump to content
 







Main menu
   


Navigation  



Main page
Contents
Current events
Random article
About Wikipedia
Contact us
Donate
 




Contribute  



Help
Learn to edit
Community portal
Recent changes
Upload file
 








Search  

































Create account

Log in
 









Create account
 Log in
 




Pages for logged out editors learn more  



Contributions
Talk
 



















Contents

   



(Top)
 


1 References  





2 External links  














160 Una






Asturianu
 / Bân-lâm-gú
Беларуская
Català
Deutsch
Ελληνικά
Español
Esperanto
Euskara
فارسی
Français
Հայերեն
Italiano

Latina
Lëtzebuergesch
Magyar
مصرى

Нохчийн
Norsk bokmål
Norsk nynorsk
Occitan
Plattdüütsch
Polski
Português
Română
Русский
Slovenčina
Slovenščina
Српски / srpski
Srpskohrvatski / српскохрватски
Suomi
Svenska
Tagalog
Татарча / tatarça

Türkçe
Українська
Tiếng Vit
Yorùbá


 

Edit links
 









Article
Talk
 

















Read
Edit
View history
 








Tools
   


Actions  



Read
Edit
View history
 




General  



What links here
Related changes
Upload file
Special pages
Permanent link
Page information
Cite this page
Get shortened URL
Download QR code
Wikidata item
 




Print/export  



Download as PDF
Printable version
 




In other projects  



Wikimedia Commons
 
















Appearance
   

 






From Wikipedia, the free encyclopedia
 


160 Una
A three-dimensional model of 160 Una based on its light curve.
Discovery
Discovered byC. H. F. Peters
Discovery date20 February 1876
Designations

MPC designation

(160) Una
Pronunciation/ˈjnə/[1]

Minor planet category

Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc118.30 yr (43209 d)
Aphelion2.90877 AU (435.146 Gm)
Perihelion2.54727 AU (381.066 Gm)

Semi-major axis

2.72802 AU (408.106 Gm)
Eccentricity0.066257

Orbital period (sidereal)

4.51 yr (1645.8 d)

Average orbital speed

18.01 km/s

Mean anomaly

144.472°

Mean motion

0° 13m 7.471s / day
Inclination3.82512°

Longitude of ascending node

8.60989°

Argument of perihelion

52.8418°
Earth MOID1.56031 AU (233.419 Gm)
Jupiter MOID2.30107 AU (344.235 Gm)
TJupiter3.349
Physical characteristics
Dimensions81.24±2.1 km
Mass5.6×1017 kg (assumed)

Mean density

2.0? g/cm3

Equatorial surface gravity

0.0227 m/s2

Equatorial escape velocity

0.0429 km/s

Synodic rotation period

11.033 h (0.4597 d)[2]
0.234 d (5.61 h)[3][4]

Geometric albedo

0.0625±0.003[2]
0.063[5]
Temperature~170 K

Spectral type

C[6]

Absolute magnitude (H)

9.08,[2] 8.95[7]

Una (minor planet designation: 160 Una) is a fairly large and dark, primitive Main belt asteroid that was discovered by German-American astronomer C. H. F. Peters on February 20, 1876, in Clinton, New York.[8] It is named after a character in Edmund Spenser's epic poem The Faerie Queene (1590).

In the Tholen classification system it is categorized as a CX-type, while the Bus asteroid taxonomy system lists it as an Xk asteroid.[9] Photometric observations of this asteroid made at the Torino Observatory in Italy during 1990–1991 were used to determine a synodic rotation period of 5.61 ± 0.01 hours.[3]

References[edit]

  1. ^ Benjamin Smith (1903) The Century Dictionary and Cyclopedia
  • ^ a b c d Yeomans, Donald K., "160 Una", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
  • ^ a b di Martino, M.; et al. (February 1994), "Lightcurves and rotational periods of nine main belt asteroids", Icarus, 107 (2): 269–275, Bibcode:1994Icar..107..269D, doi:10.1006/icar.1994.1022.
  • ^ "Lightcurves and map data on numbered asteroids N° 1 to 52225". Archived from the original on 27 November 2005. Retrieved 3 November 2008.
  • ^ "Infrared Astronomical Satellite (IRAS)". Archived from the original on 24 February 2005. Retrieved 24 February 2005.
  • ^ Asteroid Lightcurve Data File, Updated March 1, 2001
  • ^ Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", The Minor Planet Bulletin, 34 (4): 113–119, Bibcode:2007MPBu...34..113W.
  • ^ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
  • ^ DeMeo, Francesca E.; et al. (July 2009), "An extension of the Bus asteroid taxonomy into the near-infrared" (PDF), Icarus, 202 (1): 160–180, Bibcode:2009Icar..202..160D, doi:10.1016/j.icarus.2009.02.005, archived from the original (PDF) on 17 March 2014, retrieved 8 April 2013. See appendix A.
  • External links[edit]


  • t
  • e

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=160_Una&oldid=1195661943"

    Categories: 
    Minor planet object articles (numbered)
    Background asteroids
    Discoveries by Christian Peters
    Named minor planets
    CX-type asteroids (Tholen)
    C-type asteroids (SMASS)
    Astronomical objects discovered in 1876
    C-type main-belt-asteroid stubs
    Hidden categories: 
    Articles with short description
    Short description matches Wikidata
    Use dmy dates from September 2018
    Articles with JPL SBDB identifiers
    Articles with MPC identifiers
    All stub articles
     



    This page was last edited on 14 January 2024, at 20:12 (UTC).

    Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.



    Privacy policy

    About Wikipedia

    Disclaimers

    Contact Wikipedia

    Code of Conduct

    Developers

    Statistics

    Cookie statement

    Mobile view



    Wikimedia Foundation
    Powered by MediaWiki