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HD 198792


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관련 글

Visual polarization measurements in the Cepheus flare
We present polarization measurements on a stellar sample located in alarge area in Cepheus. The observations were made with the 2-m telescopeat the Pic du Midi (France), around 4350 A and with an accuracy of thepolarization degree of the order of 0.0001. At large scales, we findthat the galactic magnetic field as given by the direction of thepolarization (alignment of the dust) is, roughly speaking, parallel tothe galactic plane in the Cassiopeia cloud, with a scale size of theorder of 100 pc, while it is turned by about 90 in the Cepheus cloud. Atsmall scales, in both the Cepheus and the Cassiopeia clouds, the COcontent has little correlation with the degree of polarization.

Spectral types for early-type stars observed by SKYLAB
MK spectral types are presented for 246 early-type stars observed withthe S-019 ultraviolet stellar astronomy experiment on Skylab. K-linetypes are also given where applicable, and various peculiar stars areidentified. The peculiar stars include five silicon stars, a shell star,a helium-rich star, a silicon-strontium star, a chromium-europium star,and two marginal metallic-line stars.

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관측 및 측정 데이터

별자리:케페우스자리
적경:20h48m29.63s
적위:+69°39'28.4"
가시등급:7.428
거리:131.579 파섹
적경상의 고유운동:18.5
적위상의 고유운동:14.3
B-T magnitude:7.604
V-T magnitude:7.443

천체목록:
일반명   (Edit)
HD 1989HD 198792
TYCHO-2 2000TYC 4464-1294-1
USNO-A2.0USNO-A2 1575-04512482
HIPHIP 102694

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