Kinematic ages at epochs 1991-07-06 and 2012-09-05 together with an approximate distances for the epoch 2012-09-05 from the central source for the ballistic features of the jet.
|Feature||Age 1991||Age 2012||Distance||Method||Comments|
|North||BSHKM||125–180||145–200||17||direct||Stable expansion velocity over the last 50 yr,|
|μ = 0.″10 ± 0.″02 yr−1|
|CSHKM||286 ± 12||307 ± 12||35||magnif.||Brightness variations.|
|Structural changes in different wavelengths.|
|NE4||285 ± 61||306 ± 61||45||magnif.|
|South||loop+S||160 ± 40||183 ± 40||10||magnif.||Loop expanding steadily at least since 1960s.|
|Significant brightness change of knot S.|
|SW3||215 ± 36||236 ± 36||45||magnif.|
|SW4||880 ± 150||900 ± 150||75||magnif.|
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