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[vsnet-campaign-dn 3931] Results of V585 Lyr CCD photometry session at CBA Belgium Observatory - 2003, Sep 16/17
- Date: Wed, 17 Sep 2003 01:29:06 +0200
- To: "cba-news" <cba-news@cba.phys.columbia.edu>
- From: "Tonny Vanmunster" <Tonny.Vanmunster@cbabelgium.com>
- Subject: [vsnet-campaign-dn 3931] Results of V585 Lyr CCD photometry session at CBA Belgium Observatory - 2003, Sep 16/17
- Cc: "vsnet-campaign-dn" <vsnet-campaign-dn@ooruri.kusastro.kyoto-u.ac.jp>,"Vsnet-Outburst" <vsnet-outburst@ooruri.kusastro.kyoto-u.ac.jp>
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- Delivered-To: vsnet-campaign-dn@ooruri.kusastro.kyoto-u.ac.jp
- Importance: Normal
- In-Reply-To: <NBBBJKIECBCGIADLBIHHKEGEFOAA.Tonny.Vanmunster@cbabelgium.com>
- Reply-To: <Tonny.Vanmunster@cbabelgium.com>
- Sender: owner-vsnet-campaign-dn@ooruri.kusastro.kyoto-u.ac.jp
Dear colleagues,
Tonight (September 16/17, 2003) is clear again at CBA Belgium Observatory,
with much better sky conditions than yesterday. Using the 0.35-m f/6.3
telescope and ST-7 CCD, I performed unfiltered photometry on V585 Lyr for 3
hours AND 46 MINUTES. Similar to the nights before, the light curve (see
www.cbabelgium.com) is not showing modulations with an amplitude > 0.1 mag.
I used the PDM technique to look for periodicities in tonight's light curve,
as well as in the combined light curves, but no significant signal could be
detected.
Over the course of tonight's session, V585 Lyr faded by approx. 0.15 mag.
Although there is still a chance that the variable is an SU UMa-type dwarf
nova, currently undergoing a normal outburst, the chances are higher that
this is a long-period system.
Kind regards,
Tonny Vanmunster
CBA Belgium Observatory
www.cbabelgium.com
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