Query in: http://skyserver.sdss3.org/dr8/en/tools/search/sql.asp
Aus der Liste: In quicksearch eingeben, dann Screenshot der Grossaufnahme, darin in Gimp Color Picker
mit Radius 12, V-Wert auf 100% hochziehen; diese RGB-Werte sind die Färbung.

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 0.0345 AND 0.0545

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 0.1795 AND 0.1995

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 0.3245 AND 0.3445

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 0.4695 AND 0.4895

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 0.6145 AND 0.6345

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 0.7595 AND 0.7795

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 0.9045 AND 0.9245

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 1.0495 AND 1.0695

SELECT TOP 5
   p.objid,p.g,p.r,
   s.z as redshift
FROM PhotoObj AS p
   JOIN SpecObj AS s ON s.bestobjid = p.objid
WHERE 
   s.z BETWEEN 0.09 AND 0.11
   AND p.g-p.r BETWEEN 1.1655 AND 1.1855