Statistical interpretation of the Lichtenknecker-Database of the BAV
Currently the
Lichtenkecker-Database of the BAV (LkDB)
contains189237 minima of 2251 eclipsing binaries
distributed in 52 constellations.
This webpage allows some statistical interpretations.
For more information about the possible options move the mousepointer to the beginning of this line.
Informations about the selection criteria :
Sort criterion lists several
options for sorting the statistics about the stars of the LkDB.
There is only one choice possible
by marking the radio button in front of the text.
In detail, the criteria have the following meaning :
By constellation and variable name :
The sorting happens according to the usual order of the constellations
from And to Vul.
Within the constellation the stars are sorted according to the common
order: R, S, T,...... In case that "descending" is choosen the
sorting of the constellations is done in "reverse" order, from Vul bis And.
Also the variables in each constellation are sorted in "reverse" order,
e.g. from V4153 Sgr by V4048 Sgr till WX Sgr.
By JD of first/last observation :
In this case the sorting is done by the JD of the first respectively
last observation. According to the choosen sort sequence the table starts
with the oldest (on ascending order) respectively newest observation.
By quantity of all/CCD- and light-el./other
observations The sorting is done according to the number of
observations.
The item "other observations" stands for the total
of visual observations, photographic series, weak images on photographic
plates and observations with unknown type of photometry.
The sort sequence specifies, how the sorting
should be done.
"Ascending" means that the sorting should start with the
lowest value (1st. star, oldest JD, lowest value of observations) and the
highest values are at the end of the table. If "descending" is choosen, the
sorting is done in reverse order.
The presetting is "Sort by constellation
and variable name in ascending order".
If the sorting should be done only for a definite constellation, the
selection can be carried out by simlpy one mouse click on the constellation
token. The selection is shown in the field after "Selected constellation:".
If the interpretation should be done for all constellations, no token
should be choosen.
If a selection is already made, this can be
overwritten by choosing "All" at the end of the list of constellations.
Any interpretation starts not until a click on the button
"".