This is a documentation subpage for Template:CelestialRefEx. It may contain usage information, categories and other content that is not part of the original template page.

CelestialRefEx is suitable for use in External Links sections

• Link to its entry in the SIMBAD Astronomical Database
• extra links to other entries for the object in online databases.

It follows a similar format to {{JPL Small Body}}

Example:

• {{CelestialRefEx | Crab Nebula }}

Yields:

• Crab Nebula at the SIMBAD Astronomical Database.

• Ids – Bibliography – Image – B&W Image.

The other parameters you are most likely to use are Siblings = show and Plot = (radius in arcmins).

Parameter	Example	Usage
plot	10	Radius of star plot (if omitted, no star plot link added)
units	arcsec	Measurement unit for radius, arcsec, arcmin or deg acceptable, default arcmin
siblings	show	set to show to add link to siblings search
all	hide	set to hide to set the extra links to show individually. Default is show to show ids, bib, image, and bwimage (and any other options like that that may be added here in the future). Set to all=hide to add those individually
ids	show	set to show to add link to ids section of SIMBAD page. Shown anyway if all=show.
bib	show	set to show to add link to pre-expanded bibliography section. Shown anyway if all=show.
image	show	set to show to add link to aladin preview image, colour. Shown anyway if all=show.
bwimage	show	set to show to add link to aladin preview image, B&w. Shown anyway if all=show.

Note: siblings and plot are hidden by default, because many objects don't have siblings, and because the plot needs its radius set (otherwise plot may be too dense to read, or have nothing in it).

Uses the page name, if none is given, so if the Wikipedia page name is recognized as a celestial object by SIMBAD, this is all you need:

• {{CelestialRefExNoImages}}

Best to include the page name though if there is a chance the page might get renamed.

This template calls {{CelestialRef/Extras}}

Any identifier recognized by Simbad for its sim-basic will do.

So, these are all possible:

• {{CelestialRefEx | M 31}}
• {{CelestialRefEx | Crab Nebula}}
• {{CelestialRefEx | HD 189733b}}

etc.

Displayed as:

• M 31 at the SIMBAD Astronomical Database.

• Ids – Bibliography – Image – B&W Image.

• Crab Nebula at the SIMBAD Astronomical Database.

• Ids – Bibliography – Image – B&W Image.

• HD 189733b at the SIMBAD Astronomical Database.

• Ids – Bibliography – Image – B&W Image.

You can add a link for siblings e.g. * {{ CelestialRefEx | GL 146 |siblings = show}}

• GL 146 at the SIMBAD Astronomical Database.

• Ids – Bibliography – Siblings – Image – B&W Image.

This may be useful if the object is part of a larger group and this is relevant to the article citing it, in this case the Hyades super cluster.

The advantage of the star plot extra link is that it lets the author of the page preset the radius for the plot. For some objects this needs to be large, e.g. 20 arcmins or more. For others, that shows far too many objects and a smaller radius in arcsecs is appropriate.

Example: * {{ CelestialRefEx | HD 189733b | plot = 5 }}

yields

• HD 189733b at the SIMBAD Astronomical Database.

• Ids – Bibliography – Star plot – Image – B&W Image.

to plot stars within 5 arcmins of HD 189733b

Example:

• {{ CelestialRefEx | Alpha Centauri | plot = 50 | units = arcsec }}

yields

• Alpha Centauri at the SIMBAD Astronomical Database.

• Ids – Bibliography – Star plot – Image – B&W Image.

to plot stars within 50 arcsecs of Alpha Centauri

• {{CelestialRef}}
• {{CelestialRefExNoImages}}
• {{CelestialRefAll}}
• {{CelestialRefAllNoImages}}