[vsnet-obs 17668] BeV2-observations

["Klaus Bernhard" <klaus.bernhard@vpn.at>]

Dear colleagues!

In vsnet-obs 15002 (13.9.1998) I found it to be likely, that BeV2 is a short period variable
of type EA with a calculated period of 2.03 days. Chris Lloyd and Taichi Kato pointed out,
that my observations also could be explained by slow variability with a period of about 50 days.

New observations show, that BeV2 is in fact a slow variable.
In two nights (20.10.1998 and 25.10.1998), I made "long runs" of about 3 hours.
At these days, there should be minimas, if variability is of type EA.
Since no variations could be found (expected about 0.3 mag in 3 hours), this possibility
can be ruled out.

The range of 12.6-13.6 mag and the slow variation in brightness suggest a semiregular star (SR).
with a period of about 50 days.

Instruments:

CCD-camera: Starlight SX
Telescope: Celestron-8

My new observations:

object     YYMMDD(UT)   mag(ccd)  code
BeV2      980923.9145          12.91   BRH.BAV (..my new code of BAV)
BeV2      980923.9180          12.90   BRH.BAV
BeV2      980923.9214          12.90   BRH.BAV
BeV2      980923.9249          12.86   BRH.BAV

BeV2      981013.8842          13.07   BRH.BAV
BeV2      981013.8881          13.09   BRH.BAV
BeV2      981013.8916          13.08   BRH.BAV
BeV2      981013.8951          13.19   BRH.BAV

BeV2      981016.7631          13.19   BRH.BAV
BeV2      981016.7631          13.21   BRH.BAV
BeV2      981016.7637          13.18   BRH.BAV
BeV2      981016.7637          13.23   BRH.BAV

BeV2      981020.7784          13.16   BRH.BAV
BeV2      981020.7784          13.14   BRH.BAV
BeV2      981020.7790          13.18   BRH.BAV
BeV2      981020.8750          13.05   BRH.BAV
BeV2      981020.8784          13.18   BRH.BAV
BeV2      981020.8819          13.14   BRH.BAV
BeV2      981020.8854          13.13   BRH.BAV
BeV2      981020.8888          13.15   BRH.BAV

BeV2      981023.7250          13.17   BRH.BAV
BeV2      981023.7250          13.08   BRH.BAV
BeV2      981023.7256          13.19   BRH.BAV

BeV2      981025.7652          13.09   BRH.BAV
BeV2      981025.7652          13.11   BRH.BAV
BeV2      981025.7658          13.08   BRH.BAV
BeV2      981025.7658          13.17   BRH.BAV
BeV2      981025.8632          13.04   BRH.BAV
BeV2      981025.8666          13.16   BRH.BAV
BeV2      981025.8701          13.04   BRH.BAV
BeV2      981025.8736          13.14   BRH.BAV
BeV2      981025.8770          13.08   BRH.BAV
BeV2      981025.8805          13.06   BRH.BAV

BeV2      981025.8840          13.03   BRH.BAV
BeV2      981025.8875          13.10   BRH.BAV
BeV2      981025.8909          13.06   BRH.BAV

Regards,
     Klaus Bernhard


Klaus Bernhard
Kafkaweg 5
A-4030 Linz
Austria
e-mail: klaus.bernhard@vpn.at

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