[vsnet-alert 11007] QZ Vir: superhump period update. Period down, amplitude up.

[Martin Nicholson]

Measurements from the AAVSO observers George Sjoberg (SGOR) and William Stein (SWIL) indicate the
following:

Jan 26 2009
2454857.77929 to 2454858.00544
Period 0.060258 with amplitude 0.15

Jan 28 2009
2454859.75902 to 2454860.00073
Period 0.060645 with amplitude 0.1

Jan 29 2009
2454860.74175 to 2454861.00102
Period 0.060981 with amplitude 0.1

Jan 30 2009
2454861.74389 to 2454862.00312
Period 0.0599947 with amplitude 0.22

Jan 30 2009 (SGOR)
2454861.79558 to 2454862.04933
Period 0.059947 with amplitude 0.23

The decrease in period combined with the increase in amplitude is noteworthy.

Martin Nicholson, Daventry, UK