Table 1
Geometry and instrument settings of the observations of C/2017 K2 (PANSTARRS) on UT 2022 July 29.
| Telescope/ instrument | Median UT | N | Exptime (s) | Airmass | mv (mag) | rh (au) | Δ (au) | α (°) | ν (°) | Standard star |
|---|---|---|---|---|---|---|---|---|---|---|
| VLT-UT4/ MUSE | 02:25:39 (01:40:33–03:10:44) | 7 | 400 | 1.16 (1.06–1.26) | 12.549 | 2.530 | 1.850 | 20.1 | 294.9 | GJ754 |
Notes. Columns: N, number of exposures; Exptime, total integration time of each cube in seconds; mV, apparent V-band magnitude provided by the JPL Horizons (http://ssd.jpl.nasa.gov/?horizons); rH and Δ, median heliocentric and geocentric distances in au, respectively; α, median phase angle (angle of Sun–comet–observer) in degrees; ν, median true anomaly in degrees. The numbers in parentheses show the ranges of UT and airmass during the observation.
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