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HD 250549


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The Near-Infrared Study of Large Bok Globules
We present results from a near-infrared study of CB 3, CB 34, CB 39 andCB 54 as a part of an ongoing project, which is set to determine how Bokglobules form, evolve and disperse. Our observations have revealed thepresence of active star formation in CB 3, CB 34 and CB 54, by thediscovery of new knots in the H2 1-0 S(1) emission lineimages. We have discovered no indication of star formation in the Bokglobule CB 39 which may suggest that this globule is in an early stageof evolution. Meanwhile the globules CB 3, CB 34 and CB 54 are obviouslyin their later stages of evolution.

Photoelectric Observations in a Wide-Field Area around the Praesepe Cluster
Not Available

Photoelectric observations of classical cepheids.
Not Available

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Avci
Sað Açýklýk:06h01m57.15s
Yükselim:+16°34'01.6"
Görünürdeki Parlaklýk:9.02
özdevim Sað Açýklýk:-3.5
özdevim Yükselim:10.9
B-T magnitude:10.131
V-T magnitude:9.112

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 250549
TYCHO-2 2000TYC 1313-299-1
USNO-A2.0USNO-A2 1050-03007707
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