Dictionary of Nomenclature of Celestial Objects
(Last update: 22-Mar-2024)

Result of query: info cati EXSS HHMM.m +DDMM$
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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