Dictionary of Nomenclature of Celestial Objects
(Last update: 13-Sep-2017)

Result of query: info cati 1M$

Details on Acronym:   1M
   1M (Massachusetts univ.)= (MX) = (OS) = (OSO) Write:<<1M HHMM+DD>>
<<1M HHMM+DDd>> N: 138 Object:(X)  (SIMBAD class: X = X-ray source) Ref:=1979ApJS...39..573M byMARKERT T.H. , WINKLER P.F., LAIRD F.N., CLARK G.W., HEARN D.R., SPROTT G.F., LI F.K., BRADT H.V., LEWIN W.H.G., SCHNOPPER H.W. Astrophys. J., Suppl. Ser., 39, 573-632 (1979) The MIT/OSO 7 catalog of X-ray sources : intensities, spectra and long-term variability. oTable 1: <1M HHMM+DDd>, <1M HHMM+DD>, N=138
Details on Acronym:   MX
   MX (Massachusetts univ., X-ray) ***** Avoid the usage of MX, prefer 1M
Details on Acronym:   OS
   OS (OSO 7) ***** Avoid the usage of OS, prefer 1M
Details on Acronym:   OSO
   OSO (OSO 7) ***** Avoid the usage of OSO, prefer 1M

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