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HD 206629


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1612 MHz OH survey of IRAS point sources. I - Observations made at Dwingeloo, Effelsberg and Parkes
The data from a large sky survey are presented including a northernpilot study and a detailed southern study in which detections are biasedtoward the most evolved sources and distant sources. Both areinvestigated at the 1612-MHz transition of OH to take advantage of thestrongest line for AGB stars with optically thick dust shells. The IRASsources are chosen by considering their IR colors related to fluxes at12, 25, and 60 microns. Observations are reported for 2703 IRAS pointsources at the 1612-MHz transition, and 738 OH/IR stars are detected.The survey identifies 597 of the sources as previously unidentified, and95 percent of the OH profiles observed have twin-peak masercharacteristics which are related to emission from expandingcircumstellar shells. The other 5 percent of the sources are concludedto be transition objects between OH/IR stars and planetary nebulae.

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Observation and Astrometry data

Constellation:Grus
Right ascension:21h44m41.74s
Declination:-48°50'02.3"
Apparent magnitude:8.028
Distance:250 parsecs
Proper motion RA:20.3
Proper motion Dec:-5.2
B-T magnitude:10.106
V-T magnitude:8.2

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 206629
TYCHO-2 2000TYC 8432-337-1
USNO-A2.0USNO-A2 0375-39588963
HIPHIP 107358

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