323 Brucia
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Discovery[1] | |
---|---|
Discovered by | Max Wolf |
Discovery date | December 22, 1891 |
Designations | |
Named after
|
Catherine Wolfe Bruce |
1923 JA; 1934 JC[1] | |
Main belt (Mars-crosser) | |
Orbital characteristics[1] | |
Epoch 30 January 2005 (JD 2453400.5) | |
Aphelion | 3.101 AU |
Perihelion | 1.663 AU |
2.382 AU | |
Eccentricity | 0.302 |
1342.443 d (3.68 yr) |
|
Average orbital speed
|
18.9 km/s |
313.443° | |
Inclination | 24.227° |
97.463° | |
291.344° | |
Physical characteristics | |
Dimensions | 35.8 ± 1.7 km (IRAS)[1] |
Mass | 4.8×1016 kg (assumed) |
Mean density
|
2? g/cm³ |
0.010 m/s² | |
0.019 km/s | |
0.394 d (9.46 h)[1] | |
Albedo | 0.1765[1] |
Temperature | ~176 K |
Spectral type
|
S[1] |
11.2 to 15.8 | |
9.73[1] | |
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323 Brucia (/ˈbruːsiə/ BREW-see-ə or /ˈbruːʃə/ BREW-shə) was the first asteroid to be discovered by the use of astrophotography.[2] It was also the first of over 200 asteroids discovered by Max Wolf, a pioneer in that method of finding astronomical objects. Discovered on December 22nd, 1891, it was named in honour of Catherine Wolfe Bruce, a noted patroness of the science of astronomy, who had donated $10,000 for the construction of the telescope used by Wolf.
It is a Mars-crosser asteroid[1] with a synodic rotation period of 9.46 hours (as of 1998).[3]
References
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External links
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