2804 Yrjö
asteroid
Press Enter · cited answer in seconds
0 sources
Summary
2804 Yrjö is an asteroid[1].
Key Facts
- Discoverer or inventor: Liisi Oterma[2]
- Site of astronomical discovery: Iso-Heikkilä Observatory[3]
- Named after: Yrjö Väisälä[4]
- Follows: (2803) Vilho[5]
- Followed by: 2805 Kalle[6]
- Minor planet group: asteroid belt[7]
- Parent astronomical body: Sun[8]
- Provisional designation: 1941 HF[9], 1951 EK2[10], 1979 QD[11], 1979 QJ8[12], 1982 BY6[13]
- Time of discovery or invention: April 19, 1941[14]
- Significant event: naming[15]
- Orbital eccentricity: 0.08[16], 0.0775459[17], 0.07895946245069661[18]
- Absolute magnitude: 11.3[19], 11.31[20]
- Orbital inclination: 11.23169 degree[21], 11.22093889424763 degree[22]
- Orbital period: 5.23 years[23], 1910.641457954002 day[24]
- Rotation period: 8.12 hour[25]
- Longitude of ascending node: 109.16504 degree[26], 109.0798994273024 degree[27]
- Semi-major axis of an orbit: 3.0123197 astronomical unit[28], 3.013379620240738 astronomical unit[29]
- Apoapsis: 3.246 astronomical unit[30], 3.251314455214831 astronomical unit[31]
- Periapsis: 2.7787266 astronomical unit[32], 2.775444785266645 astronomical unit[33]
- Argument of periapsis: 174.34751 degree[34], 171.3781812455926 degree[35]
- Mean anomaly: 256.44715 degree[36], 351.7457189761957 degree[37]
- Diameter: 17.605 km[38]
- Albedo: 0.22[39]
- Epoch: November 21, 2025[40]
- Time of periapsis: 2461044.308254249 Julian day[41]