Dictionary of Nomenclature of Celestial Objects
(Last update: 26-Sep-2023)

Result of query: info cati EXSS$

Details on Acronym:   EXSS
  
EXSS   (EINSTEIN Extended Source Survey)= ([OHG97]) 
 Write:<<EXSS  HHMM.m +DDMM>>
 N:  1325
Object:(X)  (SIMBAD class: X = X-ray Source)
  Stat:is completely incorporated in Simbad
  Note:Einstein observations.    Table 2: In 1997AJ....113.2134O, N=321 objects from the authors catalogue    (N=1325)
   Ref:=1997AJ....113.2134O
     byOPPENHEIMER B.R.
, HELFAND D.J., GAIDOS E.J.
 Astron. J., 113, 2134-2146 (1997)

    A survey of the EINSTEIN IPC Database for extended X-ray sources.

oTable 2: <EXSS HHMM.m +DDMM> N=321 among 1325
=E=Catalogue in electronic form as IX/18
 Originof the Acronym: S = Created by Simbad, the CDS Database

Details on Acronym:   [OHG97]
  
[OHG97] (Oppenheimer+Helfand+Gaidos, 1997)
  ***** Avoid the usage of [OHG97],  prefer EXSS
 Originof the Acronym: S = Created by Simbad, the CDS Database