[vsnet-obs 77030] Re: [vsnet-alert 16646] VW Hyi superoutburst

[Peter F Williams]

Good morning,

Additional visual observations of the current VW Hyi superoutburst:

HYIVW	20131123.479	93	WPX
HYIVW	20131124.438	101	WPX
HYIVW	20131126.427	88	WPX

The drop in brightness between November 23 and 24 appears to represent the
superoutburst type S7 as described by Frank Bateson in the NZ Journal of
Science, 1977, Vol.20 pp 73-122 (specifically pp108,115 and 118) where it is
suggested that a normal outburst is in progress at the time of superoutburst
onset.

Tks and regards

Peter Williams
Heathcote NSW
20x80mm binoculars





-----Original Message-----
From: vsnet-alert-bounces at ooruri.kusastro.kyoto-u.ac.jp
[mailto:vsnet-alert-bounces at ooruri.kusastro.kyoto-u.ac.jp]On Behalf Of
Taichi Kato
Sent: Tuesday, 26 November 2013 12:32 PM
To: suuma at yahoogroups.com; variable_star_forum at yahoogroups.com;
vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp; vsnet-alert at yahoogroups.com;
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Subject: [vsnet-alert 16646] VW Hyi superoutburst


VW Hyi superoutburst

  YYYYMMDD(UT)   mag  observer
  20131116.471   139  (Rod Stubbings)
  20131122.376   100  (Stephen Hovell)
  20131122.480    94  (Rod Stubbings)
  20131125.600    90  (Rod Stubbings)