Dictionary of Nomenclature of Celestial Objects
(Last update: 24-Apr-2024)

Result of query: info cati BT97] NN$
.

Details on Acronym:   [BT97]
  
[BT97] (Belloni+Tagliaferri, 1997)
Write:<<[BT97] NN>>
N: 18
Object:(X)  (SIMBAD class: X = X-ray Source)
Stat:is completely incorporated in Simbad
Note:ROSAT PSPC observations.
in source:NGC 6940
Ref:=1997A&A...326..608B
byBELLONI T. , TAGLIAFERRI G.
 Astron. Astrophys., 326, 608-613 (1997)
  Soft X-ray emission from intermediate-age open clusters: NGC 6940.
oTable 1: <[BT97] NN> (Nos 1-18)
Originof the Acronym: S = Created by Simbad, the CDS Database