Assertion: comet | /r/HasProperty | dimmer than magnitude
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Source sentences:
text: However, as the comet approached to perihelium the rate of brightening started to slow when it was 1.56 to 1.27 AU away from the Sun and although activity increased again in April, the comet ended up about 6 magnitudes dimmer than expected at maximum brightness, being dimmer than magnitude 2, with most obervators reporting a maximum brightness between +4 and +6.