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Table 5
Astrometric positions of the planets around HR 8799 in date 2014.53, derived from IRDIS filters H2H3, and measurements in date 2014.62, from IFS YH band.
| Epoch | Planet | ΔRA (′′ ) | ΔDec (′′ ) |
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| 2014.53 | HR 8799 b | 1.570 ± 0.006 | 0.707 ± 0.006 |
| HR 8799 c | − 0.522 ± 0.004 | 0.791 ± 0.004 | |
| HR 8799 d | − 0.390 ± 0.005 | − 0.530 ± 0.006 | |
| HR 8799 e | − 0.386 ± 0.009 | − 0.008 ± 0.009 | |
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| 2014.62 | HR 8799 d | − 0.391 ± 0.004 | − 0.529 ± 0.004 |
| HR 8799 e | − 0.384 ± 0.002 | − 0.005 ± 0.002 | |
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| 2014.93 | HR 8799 b | 1.574 ± 0.005 | 0.703 ± 0.005 |
| HR 8799 c | − 0.518 ± 0.004 | 0.797 ± 0.004 | |
| HR 8799 d | − 0.402 ± 0.004 | − 0.523 ± 0.004 | |
| HR 8799 e | − 0.384 ± 0.010 | 0.014 ± 0.010 | |
Notes. The planet positions in broad H-band in date 2014.93 are also shown.
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