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[vsnet-chat 6258] BI Cru Deep Minimum
- Date: Sat, 26 Apr 2003 21:30:37 +1000
- To: "vsnet-symbio" <vsnet-symbio@ooruri.kusastro.kyoto-u.ac.jp>
- From: "Peter F Williams" <pfwilliams@onaustralia.com.au>
- Subject: [vsnet-chat 6258] BI Cru Deep Minimum
- Cc: "vsnet-obs" <vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp>,"vsnet-chat" <vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp>
- Delivered-To: vsnet-chat-archive@ooruri.kusastro.kyoto-u.ac.jp
- Delivered-To: vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
- Reply-To: <pfwilliams@onaustralia.com.au>
- Sender: owner-vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
The ZAND star BI Cru is undergoing its second deep decline in six months.
It was previously near magnitude 13 during 2002 September and has again
declined to from magnitude 11 to 13 between 2003 February and April, an
interval of approximately 180 days since the previous minimum. Listed here
are recent visual observations from Heathcote of the current decline that
suggest it may have already passed minimum.
STAR YYMMDD(UT) MAG OBSERVER
CRUBI 20030211.518 109 WPX
CRUBI 20030226.494 115 WPX
CRUBI 20030302.467 117 WPX
CRUBI 20030312.485 123 WPX
CRUBI 20030314.474 128 WPX
CRUBI 20030409.517 133 WPX
CRUBI 20030414.479 130 WPX
CRUBI 20030421.499 131 WPX
Regards
Peter Williams
Heathcote NSW

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