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80 Sappho

Main-belt asteroid


Summary

Main-belt asteroid

FieldValue
minorplanetyes
background#D6D6D6
name80 Sappho
symbol[[File:Double Venus symbol (bold).svg24px]] (astrological)
image80 Sappho.png
captionLightcurve-based 3D-model of Sappho on the top and the image on the bottom.
discovererN. R. Pogson
discovery_siteMadras Obs.
discovered2 May 1864
mpc_name(80) Sappho
pronounced
adjectiveSapphonian
Sapphoian
named_afterSappho (Greek poet)
mp_categorymain-belt(inner)
orbit_ref
uncertainty0
epoch4 September 2017 (JD 2458000.5)
aphelion2.7544 AU
perihelion1.8370 AU
semimajor2.2957 AU
eccentricity0.19980
period3.48 yr (1270.5 d)
inclination8.676°
mean_anomaly287.260°
mean_motion/ day
asc_node218.699°
arg_peri139.662°
moid0.843652 AU
jupiter_moid2.7319 AU
tisserand3.553
pole_ecliptic_lat194°
pole_ecliptic_lon−26°
physical_ref
mean_diameter
mass(4.6 ± 2.11/0.86) kg
density3.055 ± 1.400/0.569 g/cm3
rotation14.03087 h
albedo
0.185
spectral_typeS-type asteroid
abs_magnitude7.98
magnitude9.38 to 13.6

Sapphoian 0.185

80 Sappho (symbol: [[File:Double Venus symbol.svg|16x16px]]) is a large, S-type (stony) main-belt asteroid. It was discovered by English astronomer Norman Pogson on 2 May 1864, and is named after Sappho, the Archaic Greece poet. The asteroid is orbiting the Sun at a distance of with a period of 3.48 years and an eccentricity (ovalness) of 0.2. The orbital plane is inclined at an angle of 8.68° to the plane of the ecliptic.

13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 83 km. Hanuš et al. (2013) confirmed the polar axis has ecliptic coordinates (λ, β) = (194°, −26°) and listed a rotation period of 14.03087 h.

Sappho (at apparent magnitude 11.8) occulted the magnitude 7.2 star HIP 24403 in the constellation of Taurus on 16 September 2018 at 8:54 UT. Sacramento and Salt Lake City were the two major cities located underneath the shadow path. Data from this event will help improve the shape model of the asteroid. During the occultation the asteroid was roughly 1.6 AU from Earth with an uncertainty of ±76 km.

Notes

References

vec:Lista de asteroidi#80 Safo

References

  1. {{OED. Sappho
  2. Catherine Hobbs (1995) ''Nineteenth-century Women Learn to Write''
  3. ''The Thistle'', January 1903, vol. I, no. 2, p. 4
  4. "Asteroid Data Sets".
  5. "(80) Sappho / HIP 24403 event on 2018 Sep 16, 08:54 UT".
  6. "Interactive GoogleMap of Shadow Path".
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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