SKY-MAP.ORG

To Survive in the Universe

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TYC 1450-440-1

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관련 글

Pulkovo compilation of radial velocities for 35495 stars in a common system. Not Available
Interstellar polarization at high galactic latitudes from distant stars. 2: First results for Z less than or equal to 600 PC We present the first results from our Crimean-Tuorla program forpolarimetry of distant stars at high galactic latitudes. The availableobservations reveal a clear increase in the interstellar linearpolarization of A and F stars, up to Z approximately equals 600 pc whereone reaches PV approximately equals 0.25%. This means anaverage AB greater than or equal to 0.11 mag over thenorthern polar cap for the diffuse component of the interstellarextinction that we are probing. There is no clear indication in the datathat the asymptotic level of PV has been reached, and withfuture observations above Z = 600 pc we shall investigate this question.The trend found is in agreement with the stellar reddening analysis byTeerikorpi (1990). The directions of the plane of vibration are inagreement with Markkanen's (1979) analysis of closer (Z less than 200pc) stars in his 'Area II'. Outside of this area we define two sectors Band C which encompass the Local Spiral Arm and had little stars inprevious investigations. Here the polarization vectors deviate stronglyfrom those in Markkanen's Area II, where one is probably looking at aninterarm region, close to the edge of the Local Spiral Arm. Ourmeasurements indicate for B and C average polarization vectorsconsistent with the direction l approximately equals 110 deg obtained byother authors for the magnetic field in the Local Spiral Arm using therotation measure method.
Further Studies of A-Stars and F-Stars in the Region of the North Galactic Pole - Part Four - a Catalogue of Uvbyr Photometry and Derived Quantities Not Available
Further Studies of A-Stars and F-Stars in the Region of the North Galactic Pole - Part Three - a Catalogue of Star Names and Positions Not Available
Interstellar reddening near the north galactic pole Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972PASP...84..497F&db_key=AST
Three-colour photometry of early-type stars near the galactic poles Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1963MNRAS.127...83W&db_key=AST
Mean absolute magnitude of the blue stars at high galactic latitude. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1962AJ.....67..740K&db_key=AST

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별자리:	머리털자리
적경:	12^h59^m42.94^s
적위:	+16Â°17'14.3"
가시등급:	10.796
적경상의 고유운동:	-6.3
적위상의 고유운동:	-3.5
B-T magnitude:	10.746
V-T magnitude:	10.792

천체목록:

일반명	(Edit)
TYCHO-2 2000	TYC 1450-440-1
USNO-A2.0	USNO-A2 1050-06820627
HIP	HIP 63416

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