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HD 4273


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Interstellar polarization at high galactic latitudes from distant stars. V. First results for the South Galactic Pole
We present the first results of our interstellar polarization programmefor the South Galactic Pole (b<-70degr ). The new observations (43stars) combined with previously published data show that there is asubstantial interstellar polarization in this area of the sky. Startingat a distance of 300 pc, we have found stars with P > 0.3% includingone for which P ~ 0.6%. These measurements lead to the conclusion thatthere is a significant amount of interstellar dust at high southgalactic latitudes. Futhermore, there is a remarkable alignment seenover the South Polar Cap: for most stars the directions of polarizationvectors are aligned with the longitude l ~ 80degr , close to theexpected direction of the global magnetic field. In this respect the SGPseems to differ strongly from its northern counterpart.

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Osservazione e dati astrometrici

Costellazione:Balena
Ascensione retta:00h44m56.94s
Declinazione:-17°14'02.8"
Magnitudine apparente:9.446
Moto proprio RA:-8.7
Moto proprio Dec:5.2
B-T magnitude:10.862
V-T magnitude:9.563

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 4273
TYCHO-2 2000TYC 5847-571-1
USNO-A2.0USNO-A2 0675-00289442
HIPHIP 3520

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