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Subject: FW: E chart for V475 SCT required (fwd) Date: Wed, 29 Oct 2003 10:09:56 +0100 From: "Renz. Wolfgang" <W.Renz@seeburger.de> FYI Mike is right. The 11.7 mag star directly beside V475 Sct on the AAVSO D chart is labeled 12.2 mag on the JVSA chart. Gru=DF Wolfgang -----Original Message----- From: Mike Simonsen [mailto:mikesimonsen@mindspring.com] Sent: Wednesday, October 29, 2003 4:55 AM To: AAVSO Chart Admin Cc: Sebastian Otero; Renz. Wolfgang Subject: Re: E chart for V475 SCT required (fwd) Hi Wolfgang, Please do not use vsnet or VSOLJ charts when reporting to AAVSO if possible. We will do our best to make accurate sequences in a timely fashion. I have prepared e charts that go to 147 using Henden photometry accurate to +/- 0.02V. They will be released shortly. I am forwarding the dat file and chart to Sebastian so he can determine how best to use this information for his own charts. Japanese estimates fainter than 12V are no doubt based on this faulty chart which lists a 122 comp that is actually 117. Your own recent estimates match quite well with observations reported by reliable observers using a better sequence. Keep up the good work. Mike Simonsen AAVSO Chart Team >>Hi The faintest comp star on the AAVSO D chart of V475 Sct using ASAS-3 mags is 12.5. The faintest estimate of V475 Sct (this week) was 12.1 mag. As soon as V475 SCT (= Nova Sct 2003) makes its next dip an E chart with fainter comp stars is required. There exist already a Chart by the Japan Variable Star Association (use only for H/T stars) with USNO-A2.0 mags down to 15.0: http://www4.airnet.ne.jp/mira/nhk/flash/0200/0219_sct_pn2003.gif Best regards Wolfgang Renz
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