Table A.1: Log of the NACO observations of Achernar and $\delta $ Phe.
Date / UT Star Filt. $\Delta t \times N$a $\sigma~(\hbox{$^{\prime\prime}$ })$b AMc
Imaging          
2007-06-27T08:48:52 ${\alpha}$ Eri 2.17 2 $\times$ 5 0.102 1.46
2007-08-01T10:07:20 ${\alpha}$ Eri 2.17 2 $\times$ 5 0.082 1.19
2007-08-09T09:51:54 ${\alpha}$ Eri 2.17 2 $\times$ 5 0.088 1.20
2007-10-27T04:41:17 ${\alpha}$ Eri 2.17 2 $\times$ 30 0.091 1.20
2007-10-27T04:46:27 ${\alpha}$ Eri 1.64 2 $\times$ 22 0.092 1.20
2007-10-27T04:50:06 ${\alpha}$ Eri 1.09 2 $\times$ 20 0.141 1.20
2007-10-27T05:45:31 $\delta $ Phe 2.17 4 $\times$ 8 0.094 1.19
2007-10-27T05:48:24 $\delta $ Phe 1.64 4 $\times$ 6 0.096 1.20
2007-10-27T05:50:22 $\delta $ Phe 1.09 4 $\times$ 5 0.122 1.20
2007-10-28T03:01:11 ${\alpha}$ Eri 2.17 1.5 $\times$ 40 0.083 1.21
2007-10-28T03:04:21 ${\alpha}$ Eri 1.64 1.5 $\times$ 30 0.084 1.20
2007-10-28T03:07:18 ${\alpha}$ Eri 1.09 1.5 $\times$ 27 0.104 1.20
2007-10-28T03:37:24 $\delta $ Phe 2.17 3 $\times$ 9 0.084 1.10
2007-10-28T03:39:15 $\delta $ Phe 1.64 3 $\times$ 8 0.090 1.10
2007-10-28T03:44:21 $\delta $ Phe 1.09 3 $\times$ 7 0.102 1.10
2007-11-01T00:09:42 ${\alpha}$ Eri 2.17 0.4 $\times$ 150 0.096 1.54
2007-11-01T00:12:42 ${\alpha}$ Eri 1.64 0.4 $\times$ 110 0.103 1.53
2007-11-01T00:15:35 ${\alpha}$ Eri 1.09 0.4 $\times$ 100 0.175 1.51
2007-11-07T02:22:55 ${\alpha}$ Eri 2.17 0.4 $\times$ 150 0.093 1.21
2007-11-07T02:25:12 ${\alpha}$ Eri 1.64 0.4 $\times$ 110 0.097 1.20
2007-11-07T02:28:02 ${\alpha}$ Eri 1.09 0.4 $\times$ 100 0.132 1.20
2007-11-07T02:37:56 $\delta $ Phe 2.17 1 $\times$ 25 0.089 1.11
2007-11-07T02:39:46 $\delta $ Phe 1.64 1 $\times$ 22 0.094 1.10
2007-11-07T02:41:25 $\delta $ Phe 1.09 1 $\times$ 20 0.119 1.10
2007-12-22T01:39:46 ${\alpha}$ Eri 2.17 1.2 $\times$ 50 0.073 1.23
2007-12-22T01:44:21 ${\alpha}$ Eri 1.64 1.2 $\times$ 37 0.071 1.24
2007-12-22T01:46:51 ${\alpha}$ Eri 1.09 1.2 $\times$ 34 0.087 1.24
2007-12-22T02:26:40 $\delta $ Phe 2.17 1 $\times$ 25 0.076 1.23
2007-12-22T02:31:48 $\delta $ Phe 1.64 1 $\times$ 22 0.070 1.24
2007-12-22T02:34:57 $\delta $ Phe 1.09 5 $\times$ 4 0.093 1.25
Spectroscopy          
2007-10-27T05:22:23 ${\alpha}$ Eri H 0.5 $\times$ 100 1.28 1.23
2007-10-27T05:23:26 ${\alpha}$ Eri H 0.5 $\times$ 100 1.28 1.23
2007-10-27T05:24:20 ${\alpha}$ Eri H 0.5 $\times$ 100 1.26 1.24
2007-10-27T05:25:24 ${\alpha}$ Eri H 0.5 $\times$ 100 1.23 1.24
2007-10-28T03:20:30 ${\alpha}$ Eri H 0.5 $\times$ 100 1.25 1.19
2007-10-28T03:21:33 ${\alpha}$ Eri H 0.5 $\times$ 100 1.17 1.19
2007-10-28T03:22:27 ${\alpha}$ Eri H 0.5 $\times$ 100 1.20 1.19
2007-10-28T03:23:31 ${\alpha}$ Eri H 0.5 $\times$ 100 1.19 1.19
2007-12-22T02:04:11 ${\alpha}$ Eri H 1.0 $\times$ 50 0.91 1.26
2007-12-22T02:05:14 ${\alpha}$ Eri H 1.0 $\times$ 50 0.91 1.26
2007-12-22T02:06:08 ${\alpha}$ Eri H 1.0 $\times$ 50 0.83 1.27
2007-12-22T02:07:10 ${\alpha}$ Eri H 1.0 $\times$ 50 0.85 1.27
a The exposure times $\Delta t$ are given in seconds. N is the number of individual exposures.
b For the imaging observations, $\sigma~(\hbox{$^{\prime\prime}$ })$ is the FWHM of the star image as measured on the images themselves, and for the spectroscopic observations, we list the observatory seeing in the visible.
c AM is the airmass.

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