[Aavso-photometry] 0020+11 ASAS002511

[David Boyd]

Dear colleagues,

I obtained 3.8 hrs of V-band photometry on this object last night from JD3264.40
to 3264.56. It shows a single sharp peak per cycle with an amplitude of 0.25 mag
and a period of 0.0568+/-0.0004d using Peranso/ANOVA. I will reanalyse and
upload the data when field calibration is available.

Astrometry on 5 good images using USNO-B1.0 gives:

ASAS0025 C2004 09 15.98317 00 25 11.09 +12 17 12.5 11.4 V J90
ASAS0025 C2004 09 15.98372 00 25 11.10 +12 17 12.5 11.3 V J90
ASAS0025 C2004 09 15.98590 00 25 11.10 +12 17 12.5 11.3 V J90
ASAS0025 C2004 09 15.98646 00 25 11.10 +12 17 12.6 11.3 V J90
ASAS0025 C2004 09 15.98919 00 25 11.09 +12 17 12.6 11.3 V J90

with an average of 28 reference stars fitted, FWHM 4.5" and maximum errors in RA
+/-0.28",
DEC +/-0.25".

Regards,
David

----- Original Message ----- 
From: "Aaron Price" <aaronp at onceler.org>
To: <aavso-photometry at aavso.org>
Sent: Thursday, September 16, 2004 12:36 AM
Subject: [Aavso-photometry] 0020+11 ASAS002511


>
>
>  We've added the new object to our validation file so you can
> upload observations as 0020+11 or ASAS002511. Arne will attempt to get a
> night's photometry on the field tonight. If successfull I'll post a
> prelim sequence to this discussion group tomorrow. In the meantime please
> image away and go as long as possible to keep the observing gaps small!
>
>
> Aaron
>
> _______________________________________________
> Aavso-photometry mailing list
> Aavso-photometry at mira.aavso.org
> http://www.aavso.org/mailman/listinfo/aavso-photometry
>
>
> The Discussion Groups are a free service from the AAVSO. If you find it useful
please consider donating to the Janet A. Mattei Research Fellowship Program.
Information is available at: https://www.variablestars.com/janetfund.shtml
>