[Aavso-photometry] Toads Campaign nd HV Vir

[Richard Campbell]

Hello George,
I just checked my images of HV Vir for May 24. I stacked 15 30 sec 
images. They are of fairly poor quality but usable , high air mass and 
clouds moving in. My images show no stars at the location for HV Vir 
shown on the chart. The summed image shows some stars not on the chart, 
but when I median combine as a check, there are none not shown on the 
chart to 16.4.
  I have some from last night that I haven't processed yet.

R. Campbell CMP


George Sjoberg wrote:
> I have just recently begun photometry so accept my apologies before hand if this is just newbie confusion and/or this is the wrong place to ask these questions.
> 
> I chose a number of TOADs from the Alert Notice 379 to sharpen my photometry skills. One was HV Vir. First the minor question: The table in the alert notice shows a RA of 13:21:03.1,  the chart generator for HV Vir shows 13:21:3.1 (which i interpret as 13:21:30.1) Which is correct? 
> 
> More confusing is the fact that on two nights running i find on my images a mag 14.6 star where the chart (080520) says HV Vir would be. After the first night I didn't report anything because I feel am in test mode.  When the same star appeared after last nights run I assumed I would find something in recent observations. But CMP for May 24 shows a mag less than 17.1 in V (the same filter I was shooting thru)  Can someone help me understand what my mistake(s) are? I can supply the images if that helps.
> 
> I am using a C14 and an ST8 (NABG)
> 
> Thanks
> 
> GE Sjoberg
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