PR Lup = Nova Lupi 2011

Nova Lupi was discovered by Nicholas Brown, Quinns Rocks, Western Australia on August 4, 2011 on photographic films unfiltered at magnitude 10.2.

My observations commenced on August 8 at magnitude 10.3. Nova Lupi slowly brightened to magnitude 9.5 on August 14. On August 16 it showed a dramatic decline by almost two magnitudes to 11.3. An image taken by Rob Kaufman, Vic, Australia confirmed the decline.

The nova then showed variations from magnitude 10.5 to 12.1 before fading to magnitude 14.0 as shown in my light curve.

Observations commenced after the seasonal gap and to my surprise PR Lup was still visible at around 13.6. The light curve is updated to April 2, 2012.

I was aware that PR Lup had a close companion and to confirm my observation I asked Peter Nelson, Vic, Australia to take an image of PR Lup on March 19, 2012 which is shown below.

Due to the close companion my estimates are brighter than the V magnitude of 14.4 as I am observing both stars combined. PR Lup is listed as 8.6V – 17.0V


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