Close Approach Data
| Date | Miss Distance | Speed |
|---|---|---|
| November 15, 1930 | 1.8396 AU (275.2 million km) | 3.3 km/s |
| July 19, 1958 | 0.1641 AU (24.5 million km) | 11.1 km/s |
| July 21, 1966 | 1.8649 AU (279.0 million km) | 3.3 km/s |
| June 23, 1971 | 0.0518 AU (7.8 million km) | 10.7 km/s |
| June 19, 1984 | 0.0305 AU (4.6 million km) | 10.9 km/s |
| July 6, 1997 | 0.1144 AU (17.1 million km) | 10.6 km/s |
| May 17, 2002 | 1.9480 AU (291.4 million km) | 3.3 km/s |
| October 28, 2060 | 1.9504 AU (291.8 million km) | 3.3 km/s |
| May 29, 2072 | 0.1470 AU (22.0 million km) | 14.5 km/s |
| June 18, 2085 | 0.0280 AU (4.2 million km) | 11.0 km/s |
| October 4, 2096 | 1.8300 AU (273.8 million km) | 3.3 km/s |
| October 2, 2132 | 1.8816 AU (281.5 million km) | 3.3 km/s |
| June 23, 2147 | 0.0470 AU (7.0 million km) | 10.7 km/s |
| May 25, 2191 | 1.9223 AU (287.6 million km) | 3.2 km/s |
| July 22, 2196 | 0.1665 AU (24.9 million km) | 10.8 km/s |
Potentially Hazardous Asteroid
3671 Dionysus (1984 KD) is classified as a Potentially Hazardous Asteroid (PHA) because it is estimated to be larger than 140 meters and its orbit comes within 0.05 AU of Earth. NASA continuously monitors this object for any future impact risk. Current data does not indicate a confirmed impact event.
Binary Amor asteroid orbiting between Earth and the asteroid belt
3671 Dionysus is a small binary Amor asteroid, orbiting between Earth and the asteroid belt. It was discovered by Carolyn and Gene Shoemaker at Palomar Observatory on 27 May 1984. It is named after Dionysus, the Greek god of wine. Its provisional designation was 1984 KD. It is an outer Earth grazer because its perihelion is just within Earth's orbit.
Frequently Asked Questions
Is 3671 Dionysus (1984 KD) dangerous?โพ
3671 Dionysus (1984 KD) is classified as a potentially hazardous asteroid (PHA) by NASA. This means it is large enough and its orbit brings it close enough to Earth to warrant close monitoring. However, a PHA classification does not mean an impact is imminent.
How close will 3671 Dionysus (1984 KD) come to Earth?โพ
The closest recorded Earth approach of 3671 Dionysus (1984 KD) is 0.1641 AU (24.5 million km) on July 19, 1958, at a speed of approximately 11.1 km/s.
How big is 3671 Dionysus (1984 KD)?โพ
3671 Dionysus (1984 KD) has an estimated diameter of 2.16 km (1332โ2979 meters range). Its absolute magnitude (H) is 16.5, which NASA uses along with assumed albedo to estimate size.