KSP-OT-201509a as recorded by KSP. Image (a) is a B-band image of NGC 300, centered at its core. North is up and east is left. Images (b)–(d) are I-band images with the same orientation. (b) is an image taken ∼12 minutes before detection and (c) is the first frame in which KSP-OT-201509a is confidently detected. (d) shows the source at its maximum I-band brightness.