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In this work, early-time photometry of supernova (SN) 2014J is presented,extending the AAVSO CCD database to prediscovery dates. The applicability ofNASA's small robotic MicroObservatory Network telescopes for photometricmeasurements is evaluated. Prediscovery and postdiscovery photometry of SN2014J is measured from images taken by two different telescopes of the network,and is compared to measurements from the Katzman Automatic Imaging Telescopeand the Itagaki Observatory. In the early light-curve phase (which exhibitsstable spectral behavior with constant color indices), these data agree withreasonably high accuracy (better than 0.05 mag around maximum brightness, and0.15 mag at earlier times). Owing to the changing spectral energy distributionof the SN and the different spectral characteristics of the systems used,differences increase after maximum light. We augment light curves of SN 2014Jdownloaded from the American Association of Variable Star Observers (AAVSO)online database with these data, and consider the complete brightness evolutionof this important Type Ia SN. Furthermore, the first detection presented here(Jan. 15.427, 2014) appears to be one of the earliest observations of SN 2014Jyet published, taken less than a day after the SN exploded.

Early-Time Flux Measurements of SN 2014J Obtained with Small Robotic Telescopes: Extending the AAVSO Light Curve