GR Tau observations by Mr.Kiyota
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PHOTOMETRIC CCD OBSERVATIONS OF VARIABLE STARS
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Tsukuba Astrpnomical Observtory (TAO) Tsukuba, JAPAN
Observer: Seiichiro Kiyota
E-mail: skiyotax at ybb.ne.jp
WWW: http://www.milky.ne.jp/~meineko/index-e.html
Instruments: 0.2m SCT, Apogee Alta E47+
minII TAUGR 2454320.1968 0.0003 Hel Kis n=208 V (calculated by Nagai)
minII TAUGR 2454323.1983 0.0006 Hel Kis n=150 V (calculated by Nagai)
minI TAUGR 2454327.2788 0.0001 Hel Kis n=362 V (calculated by Nagai)
minI TAUGR 2454340.1820 0.0007 Hel Kis n=114 V (calculated by Nagai)
minI TAUGR 2454417.9855 0.0003 Hel Kis n=92 V (calculated by Nagai)
minII TAUGR 2454320.1824 0.0003 Hel Kis n=111 Ic (calculated by Nagai)
minI TAUGR 2454417.9852 0.0002 Hel Kis n=91 Ic (calculated by Nagai)
GR Tau JD(hel)=2454320.1968 C=2454320.2275 E=22675.5 O-C=-0.0307 V
GR Tau JD(hel)=2454323.1983 C=2454323.2364 E=22682.5 O-C=-0.0381 V
GR Tau JD(hel)=2454327.2788 C=2454327.3200 E=22692 O-C=-0.0412 V
GR Tau JD(hel)=2454340.1820 C=2454340.2156 E=22722 O-C=-0.0336 V
GR Tau JD(hel)=2454417.9855 C=2454418.0189 E=22903 O-C=-0.0334 V
GR Tau JD(hel)=2454320.1824 C=2454320.2275 E=22675.5 O-C=-0.0451 Ic
GR Tau JD(hel)=2454417.9852 C=2454418.0189 E=22903 O-C=-0.0337 Ic
- 07/Aug/2007 GR Tau (By Mr. Kiyota) V-band n=208 -
10 +
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| **
| **** ****
| ******* * * *** * *********** ****
+ ********************************
| * ** ** * **
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+---------------+---------------+---------------+---------------+--
15 16 17 18 19 (UT)
- 09/Aug/2007 GR Tau (By Mr. Kiyota) V-band n=245 -
10 +
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| ***********************
| *********** ** ** * ** ***
| ******** *
+ ***********
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+---------------+---------------+---------------+---------------+--
15 16 17 18 19 (UT)
- 10/Aug/2007 GR Tau (By Mr. Kiyota) V-band n=150 -
10 +
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| ** *
| ******* ****** *** * *
+ * * ******************************
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15 16 17 18 (UT)
- 12/Aug/2007 GR Tau (By Mr. Kiyota) V-band n=250 -
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| *****
| ****************************
| ***********
| ****
+ ****
| ***
| ****
| ***
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+---------------+---------------+---------------+---------------+--
15 16 17 18 19 (UT)
- 14/Aug/2007 GR Tau (By Mr. Kiyota) V-band n=362 -
10 +
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| * *
| ******************************** **
| ***************** * * **********
+ * * ****
| ******
| ***
| *********
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+---------------+---------------+---------------+---------------+--
15 16 17 18 19 (UT)
- 25/Aug/2007 GR Tau (By Mr. Kiyota) V-band n=93 -
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| * ***** *
| ***** * *******************
| * ************* *
+ ********** *
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15 16 17 18 (UT)
- 27/Aug/2007 GR Tau (By Mr. Kiyota) V-band n=114 -
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| ****
| ********
| *
+ **** *****
| ****** ***
| *** ******
| *** ***** ********
| ** ********
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+---------------+---------------+---------------+---------------+--
15 16 17 18 19 (UT)
- 17/Sep/2007 GR Tau (By Mr. Kiyota) V-band n=87 -
10 +
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| ** * *** * *****
| ************ *** * *
| * **************
+ ******* *
| **
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+---------------+---------------+---------------+---------------+--
12 13 14 15 16 (UT)
- 23/Oct/2007 GR Tau (By Mr. Kiyota) V-band n=88 -
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| * * ************************
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12 13 14 15 (UT)
- 28/Oct/2007 GR Tau (By Mr. Kiyota) V-band n=105 -
10 +
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| * *
| *********************** *
| ********
+ *******
| *****
| *******
| *************
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+---------------------+---------------------+---------------------+
11 12 13 14 (UT)
- 29/Oct/2007 GR Tau (By Mr. Kiyota) V-band n=55 -
10 +
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| * * *
| ******* * ** *************************** ****
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+--------------------------------+--------------------------------+
12 13 14 (UT)
- 07/Nov/2007 GR Tau (By Mr. Kiyota) V-band n=84 -
10 +
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| *****
| ************* *
| *****
+ *****
| *****
| ******
| ********** *
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+---------------------+---------------------+---------------------+
11 12 13 14 (UT)
- 13/Nov/2007 GR Tau (By Mr. Kiyota) V-band n=92 -
10 +
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| *
| ********
+ ******
| ****** *****
| ******* ****
| ******************
| *
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+---------------------+---------------------+---------------------+
10 11 12 13 (UT)
- 25/Aug/2007 GR Tau (By Mr. Kiyota) Ic-band n=95 -
09 +
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| *** * **
10 + ** *** ******************************** **** *
| *** *******
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15 16 17 18 (UT)
- 27/Aug/2007 GR Tau (By Mr. Kiyota) Ic-band n=111 -
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+
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| **
10 + ***********
| ******* *******
| ***********************
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+---------------+---------------+---------------+---------------+--
15 16 17 18 19 (UT)
- 17/Sep/2007 GR Tau (By Mr. Kiyota) Ic-band n=91 -
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| * *** ******
10 + ************************** ***
| ******* * *
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+---------------+---------------+---------------+---------------+--
12 13 14 15 16 (UT)
- 23/Oct/2007 GR Tau (By Mr. Kiyota) Ic-band n=88 -
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12 13 14 15 (UT)
- 28/Oct/2007 GR Tau (By Mr. Kiyota) Ic-band n=104 -
09 +
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10 + ********** ********************
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11 12 13 14 (UT)
- 29/Oct/2007 GR Tau (By Mr. Kiyota) Ic-band n=55 -
09 +
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| * * ******************** ********************
10 + * **
+--------------------------------+--------------------------------+
12 13 14 (UT)
- 07/Nov/2007 GR Tau (By Mr. Kiyota) Ic-band n=84 -
09 +
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+
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| ***
10 + ********************
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11 12 13 14 (UT)
- 13/Nov/2007 GR Tau (By Mr. Kiyota) Ic-band n=91 -
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10 + *******
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10 11 12 13 (UT)
<<<<< V-band >>>>>
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| ** ********
| ************* ** ** * *
| *************** ***************
| ****** *** ********* ******************
| ******* ******* * ************* ****
|****** ********************* ****
+**** **************** ***** **
|**** ******* * **** *
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|* **** ****
| **** ******
| **********
| *******
| *
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11 +
+------+------+------+------+------+------+------+------+------+------+-
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
<<<<< Ic-band >>>>>
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10 + **** *** ************ * ******** **** *********
|**** ****** ******* ***** *
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+------+------+------+------+------+------+------+------+------+------+-
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0