Dictionary of Nomenclature of Celestial Objects
(Last update: 22-Oct-2018)

Result of query: info cati D31$

Details on Acronym:   D31
   D31 (DIRECT survey, M 31)= (DIRECT) Write:<<D31 JHHMMSS.s+DDMMSS.s>> N: 26712 Object:*  (SIMBAD class: Star) Note:DIRECT survey for stars in M 31.
For variable stars, the authors first used the acronym DIRECT. in source:M 31 = NGC 224 Ref:=2001AJ....122.1383M byMOCHEJSKA B.J. , KALUZNY J., STANEK K.Z., SASSELOV D.D. Astron. J., 122, 1383-1385 (2001) The DIRECT project: catalogs of stellar objects in nearby galaxies. II. Eastern arm and NGC 206 in M31. oTables 1A-1E: <D31 JHHMMSS.s+DDMMSS.s> N=26712. Ref:=2003AJ....126..175B byBONANOS A.Z. , STANEK K.Z., SASSELOV D.D., MOCHEJSKA B.J., MACRI L.M., KALUZNY J. Astron. J., 126, 175-186 (2003) DIRECT distances to nearby galaxies using detached eclipsing binaries and cepheids. IX. Variables in the field M31Y discovered with image subtraction. oObjects are written with only one '0' in RA, so D31J04413.0+414747.0 is D31 J004413.0+414747.0 for ex. In table 4, [MAP97] 97 is at an incorrect line, it is D31 J004454.0+413145.4. oTables 2-8: <D31 JHHMMSS.s+DDMMSS.s> N=41+126+48+49. =E=Catalogue in electronic form as J/AJ/122/1383 =E=Catalogue in electronic form as J/AJ/126/175 Originof the Acronym: A = Assigned by the author(s)
Details on Acronym:   DIRECT
   DIRECT (DIRECT survey, in M 31) ***** Avoid the usage of DIRECT, prefer D31 Originof the Acronym: L (2007AJ....134.2474M)

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