[vsnet-const 24] RE: V449 Sco_original_ reference

[Sebasti若n Otero <varsao@fullzero.com.ar>]

Dear John and friends:
                                       We're getting closer to the true
nature of V449 Sco.
According to the note in PASP
http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1953PASP...65..
.88S
the discovery report assigned an EA type for the star with an eclipse two
days long. That can explain my "constant" observations and put aside an EB
classification.
This is also supported by the analysis of V701 Sco in Asrtronomy and
Astrophysics
http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1980A%26A....82
..225A
since the star was measured three nights as a comparison star and the mean
result was V= 7.039 +/- 0.004, matching exactly with Tycho (7.03) and Tycho
2 (7.04) catalogues and with my observations (7.0).
So there is strong evidence that implies that visual variability reported so
far was due to observational errors.

And now it's when it's more important o take a look at the original
discovery data in order to find the observations used to establish the type
and period.

I have made a correction in the sequence of the chart in order to minimize
observational errors. Comparison 72 has become 71 (in fact it was measured
as 7.15 from the ground and 7.11 by Tycho) This is better since otherwise
estimates tend to show the variable a little fainter as a result of the
round offs.
I attach a copy of the corrected chart.

Keep looking.

Sebasti睹.



> Discovery of variability and original 38.8d period came from Voe, J,
> AN 264, 311 (1937), and was apparently confirmed in visual light by some
> other observer, as noted in the same place. [That's Vo{u^}te]

V449 Sco chart.gif

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