<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2012-07-23T16:00:00Z" status="active" updated="2024-12-27T08:31:06Z" version="1.2" xmlns:g-colstat="http://dc.g-vo.org/ColStats-1" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:sia="http://www.ivoa.net/xml/SIA/v1.1" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://dc.g-vo.org/ColStats-1 http://vo.ari.uni-heidelberg.de/docs/schemata/Colstats.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface.xsd http://www.ivoa.net/xml/SIA/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/SIA.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogResource"><title>Potsdam Kapteyn Series Plates</title><shortName>kapteyn.plates</shortName><identifier>ivo://org.gavo.dc/kapteyn/q/plates</identifier><curation><publisher>The GAVO DC team</publisher><creator><name>Tsvetkov, M</name></creator><creator><name>Tsvetkova, K.</name></creator><creator><name>Demleitner, M.</name></creator><date role="Updated">2026-01-16T10:24:08Z</date><contact><name>GAVO Data Centre Team</name><address>Mönchhofstrasse 12-14, D-69120 Heidelberg</address><email>gavo@ari.uni-heidelberg.de</email><telephone>+49 6221 54 1837</telephone></contact></curation><content><subject>history-of-astronomy</subject><subject>astrophotography</subject><subject>kapteyn-selected-areas</subject><description>
In the context of Kapteyn's plan to obtain a photometric standard, in
Potsdam more than 400 photographic plates of several Selected Areas,
Special Areas, and Kapteyn-Pritchard areas were obtained between 1910 and
1933, both as direct images and with an object prism.  This service
provides FITS images of the science area of the plates as well as images of
the entire plates, including previous markings.</description><source format="bibcode">1963ASPL....9...89L</source><referenceURL>https://dc.g-vo.org/tableinfo/kapteyn.plates</referenceURL><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://org.gavo.dc/__system__/obscore/obscore">GAVO Data Center Obscore</relatedResource><relatedResource ivo-id="ivo://org.gavo.dc/tap">GAVO Data Center TAP service</relatedResource><relatedResource ivo-id="ivo://org.gavo.dc/hppunion/q/im">Historical Photographic Plate Image Archive</relatedResource></relationship></content><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface role="std" version="1.1" xsi:type="vs:ParamHTTP"><accessURL use="full">http://dc.g-vo.org/tap</accessURL><mirrorURL>https://dc.g-vo.org/tap</mirrorURL></interface></capability><capability standardID="ivo://ivoa.net/std/SIA#aux"><interface role="std" xsi:type="vs:ParamHTTP"><accessURL use="base">http://dc.g-vo.org/hppunion/q/im/siap.xml?</accessURL><mirrorURL>https://dc.g-vo.org/hppunion/q/im/siap.xml?</mirrorURL><queryType>GET</queryType><resultType>application/x-votable+xml</resultType><param std="true"><name>POS</name><description>ICRS Position, RA,DEC decimal degrees (e.g., 234.234,-32.46)</description><ucd>pos.eq</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>SIZE</name><description>Size in decimal degrees (e.g., 0.2 or 1,0.1)</description><unit>deg</unit><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>INTERSECT</name><description>Relation of image and specified Region of Interest.</description><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>FORMAT</name><description>Requested format of the image data</description><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="false"><name>dateObs</name><description>Epoch at midpoint of observation</description><unit>d</unit><ucd>time;obs.exposure</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="false"><name>bandpassId</name><description>Free-form name of the bandpass used</description><ucd>instr.bandpass</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="false"><name>object</name><description>Object being observed, Simbad-resolvable form</description><ucd>meta.id</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>responseformat</name><description>File format requested for output.</description><ucd>meta.code.mime</ucd><dataType arraysize="*" xsi:type="vs:SimpleDataType">char</dataType></param><param std="true"><name>maxrec</name><description>Maximum number of records returned. Pass 0 to retrieve service parameters.</description><dataType xsi:type="vs:SimpleDataType">integer</dataType></param><param std="true"><name>verb</name><description>Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns.</description><dataType xsi:type="vs:SimpleDataType">integer</dataType></param></interface></capability><facility>Astrophysikalisches Observatorium Potsdam (42)</facility><instrument>80cm Great Refractor</instrument><instrument>Zeiss Triplet 15 cm Potsdam-Telegrafenberg</instrument><coverage><spatial>2/0,75,103,119,124
3/4-6,8-9,65-68,72,129,131-132,136-137,194-195,197-198,200-202,224-225,283,286-287,305,307-310,312-313,343,347,350-351,364-365,367,369,371-373,376-377,423,429,431,433-436,440,467,471,473,475,491,494-495,500-502,504
4/40-42,44,48,64,128,258-259,276-278,280-282,292-294,296-298,521-523,532-534,536-538,552-554,556,770,773-775,785-786,812,814,816,832,904-905,907-910,914,1111,1131,1141-1143,1191,1226-1227,1244,1256-1258,1260,1264,1367,1387,1397-1399,1435,1438,1465-1467,1473,1482-1483,1496-1498,1512-1514,1516,1627,1630,1689-1691,1713,1721-1723,1731,1748-1750,1752-1754,1764-1766,1769-1770,1867,1879,1882,1889,1891,1897,1899,1959,1963,1973-1975,2020-2022,2024-2026,2032</spatial><temporal>18867 27155</temporal><spectral>3.82009e-19 5.22749e-19</spectral><waveband>Optical</waveband></coverage><tableset><schema><name>ivoa</name><description>Definition and support code for the ObsCore data model and table.</description><table><name>ivoa.obscore</name><description>This data collection is queryable in GAVO Data Center's obscore table.</description></table></schema><schema><name>kapteyn</name><title>Potsdam Kapteyn Series Plates</title><description>
In the context of Kapteyn's plan to obtain a photometric standard, in
Potsdam more than 400 photographic plates of several Selected Areas,
Special Areas, and Kapteyn-Pritchard areas were obtained between 1910 and
1933, both as direct images and with an object prism.  This service
provides FITS images of the science area of the plates as well as images of
the entire plates, including previous markings.</description><table><name>kapteyn.plates</name><description>
In the context of Kapteyn's plan to obtain a photometric standard, in
Potsdam more than 400 photographic plates of several Selected Areas,
Special Areas, and Kapteyn-Pritchard areas were obtained between 1910 and
1933, both as direct images and with an object prism.  This service
provides FITS images of the science area of the plates as well as images of
the entire plates, including previous markings.</description><nrows>374</nrows><column><name>accref</name><description>Access key for the data</description><ucd>meta.ref.url</ucd><utype>Access.Reference</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>owner</name><description>Owner of the data</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>embargo</name><description>Date the data will become/became public</description><unit>yr</unit><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>mime</name><description>MIME type of the file served</description><ucd>meta.code.mime</ucd><utype>Access.Format</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>accsize</name><description>Size of the data in bytes</description><unit>byte</unit><ucd>VOX:Image_FileSize</ucd><utype>Access.Size</utype><dataType xsi:type="vs:VOTableType">long</dataType><flag>nullable</flag></column><column><name>centeralpha</name><description>Approximate center of image, RA</description><unit>deg</unit><ucd>pos.eq.ra</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>centerdelta</name><description>Approximate center of image, Dec</description><unit>deg</unit><ucd>pos.eq.dec</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>imagetitle</name><description>Synthetic name of the image</description><ucd>meta.title</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>instid</name><description>Identifier of the originating instrument</description><ucd>meta.id;instr</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>dateobs</name><description>Epoch at midpoint of observation</description><unit>d</unit><ucd>time;obs.exposure</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>naxes</name><description>Number of axes in data</description><ucd>pos.wcs.naxes</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>pixelsize</name><description>Number of pixels along each of the axes</description><unit>pixel</unit><ucd>pos.wcs.naxis</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>pixelscale</name><description>The pixel scale on each image axis</description><unit>deg/pixel</unit><ucd>pos.wcs.scale</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>refframe</name><description>Coordinate system reference frame</description><ucd>pos.frame</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>wcs_equinox</name><description>Equinox of the given coordinates</description><unit>yr</unit><ucd>time.equinox</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>wcs_projection</name><description>FITS WCS projection type</description><ucd>pos.wcs.ctype</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>wcs_refpixel</name><description>WCS reference pixel</description><unit>pixel</unit><ucd>pos.wcs.crpix</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>wcs_refvalues</name><description>World coordinates at WCS reference pixel</description><unit>deg</unit><ucd>pos.wcs.crval</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>wcs_cdmatrix</name><description>FITS WCS CDij matrix</description><unit>deg/pixel</unit><ucd>pos.wcs.cdmatrix</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>bandpassid</name><description>Free-form name of the bandpass used</description><ucd>instr.bandpass</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>bandpassunit</name><description>Unit of bandpass specifications (always m).</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>bandpassrefval</name><description>Characteristic quantity for the bandpass of the image</description><unit>m</unit><ucd>instr.bandpass;stat.median</ucd><dataType 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extendedType="polygon" xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>exposure</name><description>Effective exposure time.</description><unit>s</unit><ucd>time.duration;obs.exposure</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>airmass</name><description>Airmass at mean epoch.</description><ucd>obs.airMass</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>object</name><description>Special object on plate.</description><ucd>meta.id</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>observer</name><description>Observer.</description><ucd>obs.observer</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>start_time</name><description>UT at start of 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xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>