[vsnet-obs 58456] 070602 GW Lib

[Peter Nelson]

Target                  GW Lib

Date                    070602

Observer                Peter Nelson, Ellinbank Observatory, Victoria,
Australia

Exp                     120 sec

Filter                  C

Chip Temp               -20

Binning                 2 x 2

Times (UT)              11:19 - 12:37

SN Comp                 230

SN Var                  30

SN Check                85

Mag Error               0.036

Std Dev comp                  0.02

Seeing                  3.0 arc"

Comp                    A2 0600 17910815

Check                   A2 0600 17897525

Mags Comp               V=12.8  B-V=0.9

Mags Check              V=13.5, B-V=0.9                     

Source mags             A2                      

Telescope               320mm f/5 Newtonian                       

Camera                  ST8XE                   

Pixel size              1.16 arc"               

Reduction               AIP4WIN V2.1.8                      

Apertures               6/12/22                       

QA                      48 images rejected                        

Comments                Seeing average.  Some haze & Cloud. Moonlight down
tube.

 

Thanks to the AAVSO and Curry Foundation for the loan of the ST8XE camera


 

 

                              

JD          V-C   K-C               

253.97175   2.447 1.229             

253.97329   2.378 1.26              

253.97483   2.385 1.218             

253.97636   2.453 1.255             

253.97788   2.439 1.238             

253.97942   2.462 1.246             

253.98095   2.474 1.217             

253.98249   2.483 1.218             

254.00386   2.493 1.241             

254.00538   2.317 1.242             

254.00691   2.424 1.221             

254.00843   2.405 1.231             

254.00996   2.296 1.247             

254.01147   2.44  1.227             

254.013     2.348 1.254             

254.01453   2.37  1.223             

254.01607   2.466 1.237             

254.01758   2.515 1.198             

254.01911   2.376 1.258             

254.02369   2.269 1.246       

254.02522   2.281 1.223       

254.02674   2.256 1.254       

 

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