1609 Brenda
| Discovery | |
|---|---|
| Discovered by | E. L. Johnson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 10 July 1951 |
| Designations | |
| (1609) Brenda | |
Named after | Brenda (discoverer's granddaughter) |
| 1951 NL · 1925 EA 1934 JB · 1947 WB 1950 HD · 1954 EP 1954 HE | |
| main-belt · (middle) Gersuind | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.98 yr (30,310 days) |
| Aphelion | 3.2255 AU |
| Perihelion | 1.9432 AU |
| 2.5844 AU | |
| Eccentricity | 0.2481 |
| 4.15 yr (1,518 days) | |
| 309.08° | |
| 0° 14m 13.92s / day | |
| Inclination | 18.628° |
| 105.23° | |
| 229.14° | |
| Physical characteristics | |
| Dimensions | 26.27±6.75 km 27.96±0.48 km 29.59 km (derived) 29.64±1.7 km (IRAS:6) |
| 19.46 h 23±1 h | |
| 0.1078 (derived) 0.1147±0.014 (IRAS:6) 0.13±0.05 0.133±0.005 | |
| S B–V = 0.860 U–B = 0.390 | |
| 10.50 · 10.6 · 10.61 · 10.68 | |
1609 Brenda, provisional designation 1951 NL, is a stony asteroid from the central region of the asteroid belt, approximately 28 kilometers in diameter. It was discovered on 10 July 1951, by South African astronomer Ernest Johnson at the Johannesburg Observatory in South Africa, and named after his granddaughter, Brenda.