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<RESOURCE type="results">
<LINK content-role="query" href="/NED::API/DiametersOfObject?TARGET=m31&amp;MAXREC=2"/>
<TABLE ID="diameters" name="DiametersOfObject" nrows="2">
<GROUP  ID="QUERY" name="QUERY">
<PARAM name="MAXREC" datatype="char" arraysize="*" value="2"/>
<PARAM name="TARGET" datatype="char" arraysize="*" value="m31"/>
</GROUP>
<GROUP ID="RESPONSE"  name="RESPONSE">
<PARAM name="QUERY_STATUS" datatype="char" arraysize="*" value="OK">
<DESCRIPTION>
The result is truncated. The full result is available at the Resource Link.
</DESCRIPTION>
</PARAM>
<PARAM name="QUERY_TIME" datatype="char" arraysize="*" xtype="timestamp" value="20260610T154824Z"/>
<PARAM name="RECORDS_AVAILABLE" datatype="int" value="13"/>
<PARAM name="RECORDS_RETURNED" datatype="int" value="2"/>
</GROUP>
<GROUP ID="Curation" name="Curation">
<PARAM ID="Publisher" datatype="char" name="Publisher" ucd="meta.curation" value="NASA/IPAC Extragalactic Database (NED)" arraysize="*">
<DESCRIPTION>
Copyright 2019-2026 Caltech, Support from NASA is acknowledged.
This information is taken from a collection created and curated by
the NASA/IPAC Extragalactic Database (NED), operated by the California Institute of Technology (Caltech).
If your research benefits from the use of NED, the following acknowledgement in your paper would be appreciated:

"This research has made use of the NASA/IPAC Extragalactic Database (NED), which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology."

See: https://ned.ipac.caltech.edu/Documents/Overview/Acknowledgments 
</DESCRIPTION>
</PARAM>
<PARAM name="queryEngineInfo" datatype="char" arraysize="*" value="https://ned.ipac.caltech.edu/NED::API/DiametersOfObject" />
</GROUP>
<FIELD ID="row" name="No." ucd="meta.number" datatype="int" >
<DESCRIPTION>A row number applicable to this list only</DESCRIPTION>
</FIELD>
<FIELD ID="freq_target" name="Bandpass" ucd="meta;instr.bandpass;obs.param" datatype="char" arraysize="*" >
<DESCRIPTION>Bandpass at which the data were measured</DESCRIPTION>
</FIELD>
<FIELD ID="dia_maj" name="Major Axis" ucd="phys.size.diameter;phys.size.smajAxis" datatype="double" unit="arcsec" precision="2" >
<DESCRIPTION>Major axis diameter (2*a)</DESCRIPTION>
</FIELD>
<FIELD ID="dia_unc_maj" name="Major Axis Unc" ucd="stat.error;phys.size.diameter;phys.size.smajAxis" datatype="double" unit="arcsec" precision="2" >
<DESCRIPTION>Major axis diameter uncertainty</DESCRIPTION>
</FIELD>
<FIELD ID="dia_min" name="Minor Axis" ucd="phys.size.diameter;phys.size.sminAxis" datatype="double" unit="arcsec" precision="2" >
<DESCRIPTION>Minor axis diameter (2*b)</DESCRIPTION>
</FIELD>
<FIELD ID="dia_unc_min" name="Minor Axis Unc" ucd="stat.error;phys.size.diameter;phys.size.sminAxis" datatype="double" unit="arcsec" precision="2" >
<DESCRIPTION>Minor axis diameter uncertainty</DESCRIPTION>
</FIELD>
<FIELD ID="dia_pa" name="PA" ucd="phys.size.diameter;pos.posAng" datatype="double" unit="deg" precision="0" >
<DESCRIPTION>Major axis position angle, in degrees east of north (FK5 Equatorial J2000)</DESCRIPTION>
</FIELD>
<FIELD ID="dia_unc_pa" name="Unc of PA" ucd="stat.error;phys.size.diameter;pos.posAng" datatype="double" unit="deg" precision="2" >
<DESCRIPTION>Major axis position angle uncertainty</DESCRIPTION>
</FIELD>
<FIELD ID="axis_ratio" name="Axis Ratio (b/a)" ucd="phys.size.diameter;arith.ratio" datatype="double" precision="2" >
<DESCRIPTION>Ratio of minor axis over major axis</DESCRIPTION>
</FIELD>
<FIELD ID="dia_type" name="Diameter Type" ucd="meta.note;phys.size.diameter" datatype="char" arraysize="*" >
<DESCRIPTION>Type of diameter or part of the object measured, e.g., Isophotal, half-light, FWHM</DESCRIPTION>
</FIELD>
<FIELD ID="ref_level" name="Reference Level" ucd="meta.calibLevel;phys.size.diameter" datatype="char" arraysize="*" >
<DESCRIPTION>Reference level for the measured diameter(s), with units</DESCRIPTION>
</FIELD>
<FIELD ID="refcode" name="Reference" ucd="meta.bib.bibcode" datatype="char" arraysize="*" >
<DESCRIPTION>Bibliographic reference code</DESCRIPTION>
<LINK content-role="query;encode:values" content-type="text/xml" href="/reflookup?refcode=" />
</FIELD>
<FIELD ID="Comments" name="Comments" ucd="meta.note" datatype="char" arraysize="*" >
<DESCRIPTION>Note about the object, as transcribed from the referenced catalog or publication</DESCRIPTION>
</FIELD>
<DATA>
<TABLEDATA>
<TR>
<TD>1</TD>
<TD>POSS1 103a-O</TD>
<TD>3000</TD>
<TD/>
<TD>1080</TD>
<TD/>
<TD/>
<TD/>
<TD>0.36</TD>
<TD>"Inner" diameter</TD>
<TD>Very high surface brightness</TD>
<TD>1964MCG...C02....0V</TD>
<TD/>
</TR>
<TR>
<TD>2</TD>
<TD>RC3 D_25, R_25 (blue)</TD>
<TD>11432.8</TD>
<TD>266.299988</TD>
<TD>3704.2272</TD>
<TD>171.49199657016</TD>
<TD>35.0699997</TD>
<TD/>
<TD>0.324</TD>
<TD>Isophotal diameter</TD>
<TD>25.0 B-mag arcsec^-2^</TD>
<TD>1991RC3.9.C...0000d</TD>
<TD/>
</TR>
</TABLEDATA>
</DATA>
</TABLE>
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