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Discovery and designation
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| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg |
| Discovery date | August 21, 1949 |
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Designations
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| MPC designation | (7449) 1949 QL |
| Alternate name(s) | 1949 QZ, 1969 TV3 |
| Minor planet category |
main belt asteroid |
| Ap | 2.6598433 AU |
| Peri | 1.7839837 AU |
| Semi-major axis | 2.2219135 AU |
| Eccentricity | 0.1970958 |
| Orbital period | 3.31 yrs. |
| Mean anomaly | 239.20889 deg. |
| Inclination | 6.26778 deg. |
| Longitude of ascending node | 335.86030 deg. |
| Absolute magnitude (H) | 13.8 mag |
7449 Döllen (provisional designation: 1949 QL) is a main-belt minor planet. It was discovered by Karl Wilhelm Reinmuth at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany, on April 21, 1949. It is named for Johann Heinrich Wilhelm Döllen, a 19th-century astronomer at the Dorpat (Tartu) and Pulkovo observatories.
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