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HD 16786


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The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
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GPM - compiled catalogue of absolute proper motions of stars in selected areas of sky with galaxies.
Not Available

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Photometric Survey Near the Main Galactic Meridian - Part One - Photoelectric Stellar Magnitudes and Colours in the UBVR System
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High spatial resolution IR observations and variability of the nuclear region of NGC 1068 - Structure and nature of the inner 100 parsec
Speckle interferometic observations of the Seyfert galaxy NGC 1068 at3.61 microns in two perpendicular directions are reported, and threedifferent methods are used to compute the spectrum phase of the object.Two distinct zones are found, with the emission of the nuclear regionbeing essentially nonthermal, and the emission of the extended regionbeing probably thermal in origin. The unresolved component of thenuclear region is found to be variable, and to be confined inside theinner 0.15 pc. Data are consistent with a nuclear core of 0.15 pcmaximum size illuminating an optically thick halo of 18-pc diameter thatcan be identified with the barely resolved 2-cm radio nucleus. Thechange in polarization from the visible to the near IR could be due toscattering by electron clouds and transmission through strongly aligneddust.

MK classification for F- and G-type stars. IV
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Osservazione e dati astrometrici

Costellazione:Balena
Ascensione retta:02h41m30.26s
Declinazione:+00°32'45.7"
Magnitudine apparente:6.703
Distanza:147.929 parsec
Moto proprio RA:-3.4
Moto proprio Dec:-16.1
B-T magnitude:8.115
V-T magnitude:6.82

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 16786
TYCHO-2 2000TYC 47-857-1
USNO-A2.0USNO-A2 0900-00629389
HIPHIP 12555

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