Table 2
Comet 12P major outbursts observed with TRAPPIST.
| UT time | rh (au) | Δmag | vshell (m/s) | Interval/Nb (days)/- |
|---|---|---|---|---|
| 23-07-21.013 | 3.88 | 4.13 | 128 ± 64 | 21/9 |
| 23-09-25.854 | 3.16 | 0.53 | − | − |
| 23-10-07.802 | 3.03 | 2.01 | 163 ± 23 | 12/5 |
| 23-11-01.795 | 2.74 | 2.77 | 170 ± 23 | 11/8 |
| 23-11-15.761 | 2.57 | 4.23 | 240 ± 58 | 11/11 |
| 23-12-02.769 | 2.37 | 1.56 | 220 ± 12 | 6/4 |
| 23-12-14.771 | 2.22 | 1.83 | 251 ± 75 | 9/7 |
| 24-02-03.780 | 1.56 | 0.63 | − | − |
| 24-02-29.819 | 1.21 | 0.88 | − | − |
Notes. UT time corresponds to the time when the outburst was detected in our survey. Δmag is the magnitude difference between the outburst image and the previous measurement. vshell is the measured velocity of the expanding dust shell appearing after the outburst. The ‘Interval/Nb’ column indicates the time span, in days, over which the shell speed was measured, followed by the number of individual nights used for the measurements.
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