Some references to very early measurements

Wolfgang Renz provides a set of references to some of the earliest measurements of this event, in all bands (not just V-band).

Wolfgang Renz
Dec 13, 2006

See e.g.: Michel Linnolt - VAR CAS 06 page:

• http://www2.hawaii.edu/~linnolt/VCAS06.html

Mike's data are partially from the AAVSO Alert / IAUCs / CBETs:

> Daniel W. E. Green, Central Bureau for Astronomical Telegrams, reports
> (Central Bureau Electronic Telegram 711) that S. Nakano, Sumoto, Japan,
> reports the discovery of a brightening star in Cassiopeia by Akihiko Tago,
> Ayabe, Tsuyama, Okayama-ken, Japan. Unfiltered CCD observations by Tago
> include October 25.538 UT, 10.7; 27.409, 10.5; 30.411, 8.8; 31.469, 7.5.
> Tago used a 70-mm f/3.2 lens and a Canon EOS 20Da digital camera (limiting
> magnitude 12).

[vsnet-cvcirc 1793] VSNET CV Circular 2006.10 (up to Nov 8)

> GSC3656.1328 (?) 112:(16) 109(21) 107(25) 105(27) 89(30) 82(31)! BMU,
>           KGe,Knk,RMQ,TAG,Too
[vsnet-cvcirc 1826] VSNET CV Circular 2006.11 (up to Dec 2)
> GSC3656.1328 (microlensing?) 93(1)! 100(2)! 104(3) 106(4) 108(5) 108(6)
>           111(7) 112(8)! 112(9) 113(10) 113(11)! 112(12) 114(13) 115(14)
>           114(15) 114(16) 114(17) 114(18) 116(19) 115(20) 115(21) 115(23)
>           115(24) 114(25) 116(26) 115(27) 115(28) 115(29) 115(30) BCN,BMU,
>           BVE,CMG,GRL,HGL,KWO,Kis,LMK,MUY,Mdy,Mhh,NDQ,Njh,POY,RPc,
>           RZD,Rip,Rod,SSW,Str,TUB,Ths,Too
[vsnet-cvcirc 1835] VSNET CV Circular 2006.12 (up to Dec 12)
> GSC3656.1328 (microlensing?) 115(1) 114(2) 115(5) 115(6) 117(7) 117(8) MUY,
>           Rod,SSW,TUB

[vsnet-alert 9101] GSC3656.1328 up to now,and on the microlensing interpertation

  YYYYMMDD(UT)   mag  observer
  20061021.517  <114C  (Kazuyoshi Kanatsu)
  20061025.538  107C  (A. Tago)
  20061027.408  105C  (A. Tago)
  20061030.410   88C  (A. Tago)
  20061030.522   89C  (Kazuyoshi Kanatsu)
  20061031.469   75C  (A. Tago)
  20061031.842   77p  (Keith Geary)
  20061031.890    85  (Maciej Reszelski)
  20061031.910    86  (Reinder J. Bouma)
  20061031.926    86  (John Toone)
  20061101.033    86  (Bjorn H. Granslo)
  20061101.176    87  (Gary Poyner)
  20061101.378    92  (Mike Linnolt)
  20061101.387    93  (Susumu Takahashi)
  20061101.496    93  (Hirohisa Sato)
  20061101.522  9.28Rc  (Seiichiro Kiyota)
  20061101.524  9.27Ic  (Seiichiro Kiyota)
  20061101.526  9.41V  (Seiichiro Kiyota)

VSOLJ (Variable Star Observers League in Japan) latest (unvalidated) observations:

• http://www.kusastro.kyoto-u.ac.jp/vsnet/VSOLJ/
• http://vsolj.cetus-net.org/
• http://www.cetus-net.org/cgi-bin/obs_search.cgi

GSC3656.1328 20060922-1430UT 113: Knk
GSC3656.1328 20061016-1306UT 112: Knk
GSC3656.1328 20061021-1225UT 109 Knk
GSC3656.1328 20061030-1232UT 89 Knk
GSC3656.1328 20061101-0919UT 93 Ths
GSC3656.1328 20061101-1154UT 93 Str
GSC3656.1328 20061101-1232UT 9.28Rc Kis
GSC3656.1328 20061101-1235UT 9.27Ic Kis
GSC3656.1328 20061101-1238UT 9.41V Kis

The AAVSO DB also shows the vis obs at 6.6 mag close to / at the maximum on Oct 31.469UT that was reported as erroneous by the observer and corrected later to V=7.5:

• link to this observation in the AAVSO DB

This one is plotted as unvalidated vis obs, but isn't in the QuickLook file:

• http://www.aavso.org/cgi-bin/newql.pl?name=0004%2B54B&startdate=90&output=html
• http://www.aavso.org/cgi-bin/newql.pl?name=VAR%20CAS%2006&startdate=90&output=html

• http://www.aavso.org/data/download/