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HD 146057


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관련 글

Starlight polarization and CO observations towards the Lupus clouds
We performed an observational study of the dark filaments Lupus 1 andLupus 4 using both polarimetric observations of 190 stars and a sampleof 72 ^12CO profiles towards these clouds. We have estimated lowerlimits to the distances of Lupus 1 and Lupus 4 (>~ 140 and >~ 125pc, respectively). The observational strategy of the survey allows us tocompare the projected magnetic field in an extended area around eachcloud with the magnetic field direction observed to prevail along theclouds. Lupus 4 could have collapsed along the magnetic field lines,while in Lupus 1 the magnetic field appears to be less ordered, havingthe major axis of the filaments parallel to the large-scale projectedmagnetic field. These differences would imply that both filaments havedifferent pattern evolutions. From the CO observations we have probedthe velocity fields of the filaments and the spatial extension of themolecular gas with respect to the dust.

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관측 및 측정 데이터

별자리:직각자자리
적경:16h16m09.02s
적위:-43°07'31.9"
가시등급:6.936
거리:133.511 파섹
적경상의 고유운동:10.2
적위상의 고유운동:-11.2
B-T magnitude:8.47
V-T magnitude:7.063

천체목록:
일반명   (Edit)
HD 1989HD 146057
TYCHO-2 2000TYC 7860-15-1
USNO-A2.0USNO-A2 0450-23628646
HIPHIP 79716

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