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1607 Mavis

Stony asteroid


Stony asteroid

FieldValue
minorplanetyes
name1607 Mavis
background#D6D6D6
image1607Mavis (Lightcurve Inversion).png
caption
discovery_ref
discovered3 September 1950
discovererE. Johnson
discovery_siteJohannesburg Obs.
mpc_name(1607) Mavis
alt_names1950 RA1934 VQ
1958 OB1958 PD
A903 BH
named_afterMavis Bruwer
(wife of astronomer)
Jacobus Bruwer
mp_categorymain-belt(middle)
orbit_ref
epoch4 September 2017 (JD 2458000.5)
uncertainty0
observation_arc114.29 yr (41,743 days)
aphelion3.3268 AU
perihelion1.7728 AU
semimajor2.5498 AU
eccentricity0.3047
period4.07 yr (1,487 days)
mean_anomaly158.86°
mean_motion/ day
inclination8.5789°
asc_node122.53°
arg_peri235.96°
dimensionskm
12.10 km (derived)
km
km
rotationh
h
albedo
0.3320 (derived)
spectral_typeS
abs_magnitude11.411.5411.6

1958 OB1958 PD A903 BH (wife of astronomer) Jacobus Bruwer 12.10 km (derived) km km h

0.3320 (derived)

1607 Mavis, provisional designation , is a stony asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 3 September 1950, by South African astronomer Ernest Johnson at Johannesburg Observatory in South Africa. It was later named Mavis Beacon.

Orbit and classification

This asteroid orbits the Sun in the middle main-belt at a distance of 1.8–3.3 AU once every 4 years and 1 month (1,487 days). Its orbit has an eccentricity of 0.30 and an inclination of 9° with respect to the ecliptic. The asteroid's observation arc begins with its official discovery observations, as the two previous identifications, and , made at Heidelberg and Simeiz in 1903 and 1934, respectively, remained unused.

Physical characteristics

Mavis is a stony S-type asteroid.

Rotation period

In September 2007, Australian astronomers Collin Bembrick and Julian Oey independently obtained two rotational lightcurves of Mavis. These well-defined lightcurves gave a rotation period of 6.1339 and 6.1508 hours with a brightness variation of 0.50 and 0.53 magnitude, respectively ().

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Mavis measures between 11.57 and 14.91 kilometers in diameter and its surface has an albedo between 0.189 and 0.31. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.3320 and a diameter of 12.10 kilometers based on an absolute magnitude of 11.4.

Naming

This minor planet was named in honor of the Mavis Bruwer, wife of astronomer Jacobus Albertus Bruwer, who was an astronomer at Johannesburg Observatory, and after whom 1811 Bruwer was named. The official was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3931).

References

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