[vsnet-alert 23372] Re: (cba:chat) OT J162717.0+040559 (aka PNV J16271698+0405590): this WZ Sge-type dwarf nova likely shows eclipses

[Ken Menzies kenmenstar@gmail.com via vsnet-alert]

Tonny:

 

Imaged last night (July 8-9) from CBA Framingham. Noted likely eclipse with 0.7 mag dip (CV). Also noted another smaller sharp dip (screen shot attached)?

 

Ken Menzies (MZK)

Observer: Kenneth Menzies (MZK), Tigh Speuran Observatory, Framingham, MA 

Internet: kenmenstar at gmail.com 

Instruments: 0.317-m f/8 Hyperion, STL-6303E

Filter: CV

Duration: 120s

 

 

From: cba-chat <cba-chat-bounces at cbastro.org> On Behalf Of Tonny Vanmunster
Sent: Monday, July 8, 2019 16:00
To: cba-chat at cbastro.org; Tonny Vanmunster <tonny.vanmunster at cbabelgium.com>; Taichi Kato <tkato at kusastro.kyoto-u.ac.jp>; VSNET' <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>; vsnet-campaign-dn at ooruri.kusastro.kyoto-u.ac.jp; vsnet-newvar at yahoogroups.com; vsnet-outburst <vsnet-outburst at ooruri.kusastro.kyoto-u.ac.jp>; vsnet-outburst at yahoogroups.com
Subject: (cba:chat) OT J162717.0+040559 (aka PNV J16271698+0405590): this WZ Sge-type dwarf nova likely shows eclipses

 

Dear colleagues,

Further to my announcement on Jul 4th of the WZ Sge-type dwarf nova nature detection of OT J162717.0+040559 (aka PNV J16271698+0405590), I have continued observing this target. My observations of last night (Jul 7/8 2019) obtained at CBA Belgium Observatory show the object at mag 14.8 (CV). More importantly, my light curve seems to reveal the presence of eclipses of approx. 0.6 mag deep and about 0.58d apart.

I'm currently on holiday travel with no light curve analysis tools, and therefore can't execute a detailed analysis of my observations. However, a rough inspection of the AAVSO light curve of PNV J16271698+0405590 seems to reveal the eclipses as well. 

Sky conditions are clear again in Belgium tonight, so I will attempt further CCD photometry. In addition, I seek the assistance of fellow observers/analysts to confirm the presence of eclipses in the light curve of this interesting target.

Many thanks!

Kind regards
Tonny
 

-- 

Tonny Vanmunster
CBA Belgium Observatory
CBA Extremadura Observatory
www.cbabelgium.com <http://www.cbabelgium.com> 
www.peranso.com <http://www.peranso.com> 

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