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Table 1
Observations of the 2013 eruption of M 31N 2008-12a and archival HST observations covering the position of the progenitor.
| JD | Telescope and | Photometry |
| 2 450 000+ | instrument | and filter |
|
|
||
| 5416.027 | HST ACS/WFCa,b | F475W = 24.07 ± 0.02 |
| 5415.956 | HST ACS/WFCa,b | F814W = 23.90 ± 0.02 |
|
|
||
| 5586.715 | HST WFC3/UVISb | F275W = 23.14 ± 0.06 |
| 5586.705 | HST WFC3/UVISb | F336W = 23.10 ± 0.03 |
| 5586.771 | HST WFC3/IRb | F110W > 22.05 |
| 5586.780 | HST WFC3/IRb | F160W > 21.22 |
|
|
||
| 5805.013 | HST WFC3/UVISc | F275W = 22.9 ± 0.1 |
| 5805.012 | HST WFC3/UVISc | F336W = 22.81 ± 0.03 |
| 5805.079 | HST WFC3/IRc | F110W > 21.01 |
| 5805.087 | HST WFC3/IRc | F160W > 21.18 |
|
|
||
| 5936.631 | HST ACS/WFCc | F475W = 24.49 ± 0.02 |
| 5936.538 | HST ACS/WFCc | F814W = 24.05 ± 0.02 |
|
|
||
| 6625.357 | LT IO:Oa | B = 19.51 ± 0.01 |
| 6625.425 | LT IO:Oa | B = 19.61 ± 0.01 |
| 6625.430 | LT IO:Oa | V = 19.65 ± 0.02 |
| 6625.435 | LT IO:Oa | i′ = 19.29 ± 0.02 |
| 6625.519 | Danish 1.54 m DFOSC | R = 19.08 ± 0.08 |
| 6625.522 | Danish 1.54 m DFOSC | V = 19.62 ± 0.09 |
| 6628.529 | Danish 1.54 m DFOSC | R = 20.0 ± 0.3 |
| 6628.533 | Danish 1.54 m DFOSC | V = 20.9 ± 0.3 |
| 6628.537 | Danish 1.54 m DFOSC | I = 20.8 ± 0.3 |
| 6631.391 | LT IO:O | B = 22.2 ± 0.3 |
| 6631.396 | LT IO:O | V > 21.4 |
| 6636.528 | Danish 1.54 m DFOSC | R > 21.2 |
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