PKS 2155-304 : Sudden rapid fading in April

On April 23, this blazar suddenly, rapidly faded from 13.2mag to 13.9mag as reported by B. Monard (vsnet-campaign-blazar 185). Just after it reached the bottom, the object began recovering. The magnitude reached about 12.6mag on September (vsnet-campaign-blazar 223). The brightening stopped and remained around 12.5mag at least until October (vsnet-campaign-blazar 230).

Other related articles: vsnet-campaign-blazar 224, 226, 229

Light Curve of This Object