719 Albert
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| Discovery A | |
|---|---|
| Discoverer | Johann Palisa |
| Discovery date | October 3, 1911 |
| Alternate designations B |
1911 MT; 2000 JW8 |
| Category | Amor, Mars-crosser asteroid |
| Orbital elements C | |
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| Eccentricity (e) | 0.552 |
| Semi-major axis (a) | 393.746 Gm (2.632 AU) |
| Perihelion (q) | 176.459 Gm (1.180 AU) |
| Aphelion (Q) | 611.033 Gm (4.085 AU) |
| Orbital period (P) | 1559.676 d (4.27 a) |
| Mean orbital speed | 16.87 km/s |
| Inclination (i) | 11.547° |
| Longitude of the ascending node (Ω) |
184.093° |
| Argument of perihelion (ω) |
155.672° |
| Mean anomaly (M) | 264.909° |
| Physical characteristics D | |
| Dimensions | 2.4 km |
| Mass | 1.4×1013 kg 1 |
| Density | 2.0? g/cm³ |
| Surface gravity | ~0.0007 m/s² |
| Escape velocity | ~0.0013 km/s |
| Rotation period | 0.2417 d 2 |
| Spectral class | S |
| Absolute magnitude | 15.8 |
| Albedo (geometric) | 0.10? |
| Mean surface temperature |
~171 K |
719 Albert is an Amor asteroid, the second one discovered after 433 Eros. It is also a Mars-crosser asteroid.
It was discovered by Johann Palisa in 1911, but then was lost and not recovered until 2000, using data from the Spacewatch asteroid survey project. The new discovery was designated 2000 JW8 [1]. By 2000, Albert was the last "lost" asteroid among the numbered asteroids (69230 Hermes was not numbered until 2003). The second last lost asteroid, 878 Mildred, had been recovered in 1991.
Palisa named the asteroid in memory of a major benefactor, Albert Salomon von Rothschild, who had died some months before.
| Minor planets | ||
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| Previous minor planet | 719 Albert | Next minor planet |
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| Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud) |
| For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |
