Dictionary of Nomenclature of Celestial Objects
(Last update: 11-Mar-2024)

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