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[vsnet-chat 4182] How I get Hipparcos data of DK CAM ?
- Date: Tue, 10 Apr 2001 20:38:44 +0300
- To: vsnet-chat@kusastro.kyoto-u.ac.jp
- From: Kari Tikkanen <ktikkane@mail.student.oulu.fi>
- Subject: [vsnet-chat 4182] How I get Hipparcos data of DK CAM ?
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
>>vsnet-chat@kusastro.kyoto-u.ac.jp
>>Subject: How I get Hipparcos data of DK CAM ?
In some IBVS We see opened Hipparcos data, single magnitude measurements
of that satellite ordered to new order etc to get proper light curve.
How I get single HIP magnitude measurements of DK CAM with HJD's ?
I have observed DK CAM and observed one proper visual minimum couple
weeks ago.
Hipparcos/Tycho satellite observed two or three minima but "it" could
not conclude period. With my minima and over 100 personal visual measurements
I could perhaps get n*Period or even Period himself
with GCD algorithm..
--
I observed visually that minima DK CAM is approx 0.2..0.3 mag, it lasts (D=)
about 7 hours.
From curve
http://astro.estec.esa.nl/Hipparcos/curvespdf/C/20779.pdf
I get approx minima candidate JulianDates for DK CAM:
2448074+-2
2448160+-2
2448662+-2
differences for those 86+-3 d and 502+-3 d
I guess someone on earth knows how to get much more accurate HIPPARCOS
minima candidates for DK CAM (HIP 20779).
With Best Regards,
Mr. Kari A. Tikkanen, Oulu, FINLAND
http://vsnet.student.oulu.fi/~ktikkane/astrov.html
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