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745 Mauritia

Dark background asteroid

Field	Value
minorplanet	yes
name	745 Mauritia
background	#D6D6D6
discovery_ref
discoverer	F. Kaiser
discovery_site	Heidelberg Obs.
discovered	1 March 1913
mpc_name	(745) Mauritia
pronounced
alt_names	A913 EH1972 BM
1913 QX
named_after	Saint Maurice
(Christian martyr)
mp_category	{{plainlist
* main-belt<ref name	"MPC-object" /(outer)
* background<ref name	"AstDys-object" /
orbit_ref
epoch	31 May 2020 (JD 2459000.5)
uncertainty	0
observation_arc	107.16 yr (39,139 d)
aphelion	3.3943 AU
perihelion	3.1332 AU
semimajor	3.2638 AU
eccentricity	0.0400
period	5.90 yr (2,154 d)
mean_anomaly	104.57°
mean_motion	/ day
inclination	13.324°
asc_node	125.68°
arg_peri	26.747°
mean_diameter	{{plainlist
* {{val	23.23	1.38	ul	km}}
* {{val	24.711	0.288	u	km}}
rotation
albedo	{{plainlist
* <ref name	"Mainzer-2016" /
* <ref name	"AKARI" /
spectral_type	C (assumed)
abs_magnitude	{{plainlist
* 10.30<ref name	"AKARI" /
* 10.40<ref name	"Mainzer-2016" /
* 10.5<ref name	"MPC-object" /}}

1913 QX (Christian martyr)

main-belt(outer)
background
10.30
10.40
10.5}}

745 Mauritia (prov. designation: or ) is a dark background asteroid from the outer regions of the asteroid belt, approximately 24 km in diameter. It was discovered on 1 March 1913, by German astronomer Franz Kaiser at the Heidelberg-Königstuhl State Observatory in Germany. The presumed carbonaceous C-type asteroid has a rotation period of 9.9 hours. It was named after Saint Maurice, patron of the Saint Mauritius church in the city of Wiesbaden, where the discoverer was born.

Orbit and classification

Mauritia is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the outer asteroid belt at a distance of 3.1–3.4 AU once every 5 years and 11 months (2,154 days; semi-major axis of 3.26 AU). Its orbit has an eccentricity of 0.04 and an inclination of 13° with respect to the ecliptic. The body's observation arc begins at Heidelberg on 3 January 1918, almost five years after its official discovery observation.

Naming

This minor planet was named after 3rd-century Christian martyr Saint Maurice, who is the patron of the church in Wiesbaden, Germany, where the discoverer was born (also see 717 Wisibada). The Swiss village Saint-Maurice, where he died in AD 287 is also named after Saint Maurice. The was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 75).

Physical characteristics

Mauritia is an assumed, carbonaceous C-type asteroid due to its low albedo (see below) and its location in the outer asteroid belt. However, D-type and P-type asteroids fulfill the location and albedo-based criteria as well.

Rotation period

In March 2013, a first rotational lightcurve of Mauritia was obtained from photometric observations over six nights by Frederick Pilcher at the Organ Mesa Observatory in New Mexico, United States. Lightcurve analysis gave a well-defined rotation period of hours with a brightness variation of magnitude ().

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), Mauritia measures () and () kilometers in diameter and its surface has an albedo of () and (), respectively. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 44.22 kilometers based on an absolute magnitude of 10.5. The WISE team also published an alternative mean diameter of () with an albedo of ().

Notes

References

{{OED. Mauritian, Mauritius

Info: Wikipedia Source

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