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[vsolj-alert 543] SW UMa (super?)outburst

SW UMa (super?)outburst

　SW UMaが待望の（スーパー）アウトバーストを起こしました。最高の条件で観測
　できます。CCDによる連続測光が期待されます。２年版ぶりぐらいです。明るく
　なれば９等にもなるSU UMa型矮新星です。

Date: Fri, 11 Feb 2000 23:16 +0000 (GMT)
From: cpj@cix.compulink.co.uk (Christopher Jones)
Subject: [vsnet-alert 4186] Outburst of SW UMa

Positive observations of SW UMa

Mr C. P. Jones
Laindon, Essex, UK.
AAVSO ID: JCN
Email: cpj@cix.co.uk

Instrument: 457mm f/4 Newtonian + 150mm and 75mm masks.

Visual Observations for 11 February 2000.

11 Feb  Transparent.

Star            UT                  Mag              Seq  Comments
----------------------------------------------------------------------
UMASW           000211.9257         14.1     JCN     BAA  Outburst!
UMASW           000211.9549         14.1     JCN     BAA
----------------------------------------------------------------------

Chris J 

Date: Sat, 12 Feb 2000 03:17:51 +0100
From: Patrick Schmeer <extpasc@rz.uni-sb.de>
Subject: [vsnet-alert 4188] SW UMa rare outburst

Visual magnitude estimates by P. Schmeer, Bischmisheim, Germany:
 
SW URSAE MAJORIS  (UGSU)
Feb. 11.23  UT, [13.0 ; 11.77 , [13.2 ; 12.028,  12.4 ; 12.062,  12.0 ;
     12.085 UT,  11.7
Sequence:   AAVSO
Instrument: 203-mm SCT
 
Going into outburst just between my evening and midnight session - great!
 
The most recently recorded outburst (a supermaximum) was detected by Gene
Hanson on 1997 Oct. 19.490 UT at mv= 11.1 (cf. vsnet-alert 1269, IAUC 6760).
 
Regards,
Patrick

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