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| en:etc:simbad [2014/12/16 23:51] – created msteinke | en:etc:simbad [2016/07/04 21:35] (current) – [Parameter search] rhainich |
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| ====== Simbad ====== | ====== Simbad ====== |
| [[http://simbad.u-strasbg.fr/simbad/|Simbad]] is a database of astronomical objects (mostly of our Milky Way) and contains information on about 8 million objects. /*Simbad contains on 2014.12.16: 7,708,697 objects*/ These details are shown in a common catalog. During these laboratory courses Simbad can be used to find suitable objects for N1 and N2. | [[http://simbad.u-strasbg.fr/simbad/|Simbad]] is a database of astronomical objects (mostly of our Milky Way) that contains information of more than 8 million objects. Simbad is an ideal tool to find suitable objects for N1 and N2. |
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| ===== Parameter search ===== | ===== Parameter search ===== |
| On the mainpage of [[http://simbad.u-strasbg.fr/simbad/|Simbad]] on the left (**Queries**) click **by criteria** to find the input mask. | On the mainpage of [[http://simbad.u-strasbg.fr/simbad/|Simbad]] in the left column (**Queries**) click **by criteria** to find the input mask. |
| In the section ''Description of the queriable fields'' find a description of all parameters and their meaning. For the laboratory courses (basically) only these are required: | In the section ''Description of the queriable fields'' a description of all parameters and their meaning can be found. For the laboratory courses (basically) only the following four parameters are of interest: |
| * sptypes | * sptypes |
| * otypes | * otypes |
| ^ Parameter ^ Explanation ^ Example ^ | ^ Parameter ^ Explanation ^ Example ^ |
| | sptype | list all objects with the given spectral type (sptype = 'K0' -> 'K0') | sptype = 'K0' | | | sptype | list all objects with the given spectral type (sptype = 'K0' -> 'K0') | sptype = 'K0' | |
| | sptypes | list all objects with the given spectral type and its subtypes (sptypes = 'k0' -> 'K0III','K0V',...) | sptypes = 'K0' | | | sptypes | list all objects with the given spectral type and its subtypes (sptypes = 'k0' -> 'K0III','K0IV','K0V',...) | sptypes = 'K0' | |
| | otype | list only objects of a given type, e.g. Cl* is stars in cluster (otype = 'Cl*' -> 'Cl*'| otype = 'Cl*' | | | otype | list only objects of a given type, e.g. Cl* is stars in cluster (otype = 'Cl*' -> 'Cl*'| otype = 'Cl*' | |
| | otypes | list only objects of a given type and its subtypes (otypes = 'Cl*' -> 'Cl*','GlC','OpCl') | otypes = Cl* | | | otypes | list only objects of a given type and its subtypes (otypes = 'Cl*' -> 'Cl*','GlC','OpCl') | otypes = Cl* | |