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[vsnet-obs 15402] New variable (BeV4)



Dear Dr. Kato!

I would like to send you observations of a new variable star (BeV4), which I have discovered in a systematic CCD-based search for new variables.

Instruments (K.Bernhard):

CCD-camera: Starlight SX
Telescope: Celestron-8

New variable star:

new BeV4  055227.8  N062053.0   11.7 12.2(ccd)

comments:

BeV4: GSC 128 1121

BeV4 seems to be a slow variable. Since no minimum could be observed yet,
type and period are still unknown.
Comparison star is for all following observations of W.Quester (QU.BAV) and K.Bernhard (Be) GSC 128 1159 (11.5 mag),
 which was prooved to be constant.

object       YYMMDD(UT)      mag     code
BeV4        980110.924            12.19     Be
BeV4        980117.899            12.08     Be
BeV4        980126.905            11.95     Be
BeV4        980201.839            11.93     Be
BeV4        980203.839            11.85     Be
BeV4        980203.845            11.88     Be
BeV4        980204.852            11.92     Be
BeV4        980205.887            11.86     Be
BeV4        980208.830            11.85     Be
BeV4        980208.883            11.86     Be
BeV4        980210.878            11.82     Be
BeV4        980211.839            11.78     Be
BeV4        980217.805            11.83     Be
BeV4        980218.812            11.82     Be
BeV4        980218.869            11.78     Be
BeV4        980220.802            11.79     Be
BeV4        980226.843            11.77     Be
BeV4        980301.793            11.79     Be
BeV4        980308.757            11.80     Be
BeV4        980309.774            11.80     Be
BeV4        980309.867            11.78     Be
BeV4        980310.858            11.75     Be
BeV4        980311.804            11.86     Be
BeV4        980320.811            11.88     Be
BeV4        980325.772            11.89     Be
BeV4        980326.790            11.89     Be
BeV4        980328.775            11.97     Be
BeV4        980329.775            11.92     Be
BeV4        980330.770            11.93     Be
BeV4        980410.789            12.03     Be
BeV4        980411.791            12.05     Be

The variability of GSC 128 1121 was confirmed by observations of Wolfgang Quester (QU.BAV).
The almost constant difference in the observed brightness of about 0.4 mag between measurements of W.Quester and K.Bernhard
 can be explained by the use of CCD-cameras with different spectral sensitiveness.


Instruments (W. Quester):
CCD-camera:  SBIG-ST-7 with filter KG5/2
Telescope: 20 cm Cass. f/6.4



object       YYMMDD(UT)      mag        code
BeV4        980218.879            11.49    QU.BAV
BeV4        980218.886            11.47    QU.BAV
BeV4        980218.888            11.48    QU.BAV
BeV4        980218.898            11.47    QU.BAV
BeV4        980226.773            11.47    QU.BAV
BeV4        980226.775            11.47    QU.BAV
BeV4        980226.777            11.49    QU.BAV
BeV4        980301.831            11.45    QU.BAV
BeV4        980301.832            11.47    QU.BAV
BeV4        980301.834            11.48    QU.BAV
BeV4        980310.779            11.45    QU.BAV
BeV4        980310.780            11.46    QU.BAV
BeV4        980310.781            11.46    QU.BAV
BeV4        980319.844            11.50    QU.BAV
BeV4        980319.845            11.51    QU.BAV
BeV4        980319.846            11.49    QU.BAV
BeV4        980321.792            11.57    QU.BAV
BeV4        980321.795            11.57    QU.BAV
BeV4        980321.796            11.58    QU.BAV
BeV4        980324.788            11.55    QU.BAV
BeV4        980324.792            11.57    QU.BAV
BeV4        980408.854            11.66    QU.BAV
BeV4        980408.855            11.63    QU.BAV
BeV4        980408.857            11.62    QU.BAV


Regards,

  Klaus Bernhard


Klaus Bernhard                                 Wolfgang Quester
Kafkaweg 5                                         Wilhelmstr. 96 B13
A-4030 LINZ                                       D-73730 ESSLINGEN
AUSTRIA                                            GERMANY
e-mail:                                                  e-mail:
klaus.bernhard@vpn.at                 wquester@aol.com

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