The General Index -- The Photometries -- The Bibliographic references

The General Index

To enter a query

1. Fill the dialog boxes with star numbers or coordinates

   Star number

   Enter one or several star identifications, separated by a coma,

   like: HD 10700, HD 20902

   The most common acronyms are presently recognised.

   For other identifications, use the code numbers (LID).

   Coordinates

   Check for the equinox, 1950 or 2000

   Enter in their respectives boxes

   • the Right Ascension, like : 12 24 15
   • the Declination, like : -56 48.7
   • the size in RA ['arc], like : 5.0
   • the size in Decl ['arc], like : 5.0

   These values define a box centered on RA = 12h 24 15, Dec = -56 48.7

   The width is entered in minutes of arc in both coordinates.

   The size values are in fact the half size of the box sides.

2. Press the button Query by ... depending on your choice.
3. The button Reset Form will clear the entry areas.

To get photometric data

To get further data

The Photometries

It offers the possibility to retrieve mean (averaged) values or original data (as published), and to display the references or not.

The selection can be made for one or several stars, the name being separated by comas, with recognised acronyms. Examples are displayed in the compact menu. Stars can be also searched for in any area or selections can be made according to the magnitudes or colour indices. Star clusters or special list can be search by the generic part of the code number.

To enter a query

1. Select a photometric system from the scrolling list
2. Select the search for mean or original data

   Mean

   Averaged values have been computed for the UBV and uvby systems,

   Mean data only are available for the Geneva and Celescope systems.

   Original

   Original data reproduced from the literature

3. Decide if you wish also to display the bibliographic references
4. Select the kind of criterion to perform the search
5. Fill the dialog box, according to the above choice

   Star number

   Enter one or several star identifications, separated by a coma,

   like: HD 10700, HD 20902

   The most common acronyms are presently recognised.

   For other identifications, use the code number (LID).

   Coordinates

   Select the equinox (1950 or 2000) of the coordinates

   Enter

   • the right ascension,
   • the size in RA,
   • the declination and
   • the size in Decl

   in a format like: 3 40 00 10.0 23 30.0 10.0, corresponding to

   hh mm ss

   hour, minute and second of right ascension

   xx.x

   dimension in right ascension, indicated in minute of arc

   dd mm.m

   degree, minute.fraction of minute of declination

   yy.y

   dimension in declination of the area in minute of arc

   These values defines a box centered on RA = 3h 40 00, Dec = +23 30.0

   and width equal to 20 minutes of arc in RA and Dec.

   The size values are in fact the half size of the box sides.

   Astrophysical parameters

   Enter a line containing a parameter, a comparator and a value like in:

   • B-V > 2.3
   • U-B > -0.5 && U-B < 0.5
   • -0.5 < U-B < 0.5
   • V < 2.00 && B-V < 0.00

   The comparators && and || can be replaced by "and" or "or" like in:

   • V < 2.00 and B-V < 0.00
   • V < 2.00 or B-V > 2.00
   • V < 1.50 and V != ""

   The descriptions of the photometric systems list the valid parameters.

   Except for the format (-0.5 < U-B < 0.5), the parameter should be typed in the beginning like in : B-V > 2.3 and not 2.3 < B-V

   Code number

   This query offers the possibility to extract the stars that have similar code numbers, like stars in clusters or in small list.

   Enter:

   the keyword Code, the comparator ~ and the generic part of the code number

   Example:

   Code ~ 022287

   will extract the data for the cluster NGC 2287

   The syntax

   Code like 022287

   is also accepted

6. Enter Return or press the button Submit query.
7. The button Reset Form will clear the entry area.

To get further data

The Bibliographic References

To query the references

1. Select first the kind of keys you want to use
2. Select a photometric system
3. Enter the relevant information in the dialog box depending on your first selection

   Reference number

   Enter a list of reference numbers, separated by space or coma

   Author name

   Enter the name of the author

   Title keyword

   Enter a string, like for example:

   1. old open cluster
   2. OB stars
   3. classical cepheids

   Journal name

   Enter a characteristic string, like for example:

   1. Pacific
   2. Pacific 89

   The first criterion will select all references related to "Pacific", while the second one will select only the references included in the volume 89

4. Enter Return or press the button Submit query.
5. The button Reset Form will clear the entry area.

To get further data