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HD 211005


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Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.

Polarimetry Of Comet Hale-Bopp: Linear And Circular Polarization, Stellar Occultation
Comet Hale-Bopp was observed with the 2.6-m and 1.25-m telescopes of theCrimean Astrophysical Observatory on March 9 and 11, 1997. We determinedthe linear and circular polarization in the coma. For the dust coma, thelinear polarization varied from 7.8% to 12.4%. The degree of circularpolarization was always negative and did not exceed 0.3% with anaccuracy of ±0.04% on average. The passage of a bright starthrough the cometary coma was monitored with polarimetry and photometry.The wavelength dependence and spatial variations of optical thickness ofdust are obtained from the stellar occultation.

MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington
MK spectral classifications are given for 591 stars which are used fortime and latitude observations at Mizusawa and Washington. Theclassifications in the MK system were made by slit spectrograms ofdispersion 73 A/mm at H-gamma which were taken with the 91 cm reflectorat the Okayama Astrophysical Observatory. Photometric observations in UBV were made with the 1-meter reflector at the Flagstaff Station of U.S.Naval Observatory. The spectrum of HD 139216 was found to show a strongabsorption line of H-beta. The following new Am stars were found:HD9550, 25271, 32784, 57245, 71494, and 219109. The following new Apstars were found: HD6116, 143806, 166894, 185171, and 209260. The threestars, HD80492, 116204, and 211376, were found to show the emission inCaII H and K lines.

UBV Photoelectric Photometry of 259 PZT Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980PASP...92..215G&db_key=AST

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Pozíciós és asztrometriai adatok

Csillagkép:Gyík
Rektaszcenzió:22h13m23.89s
Deklináció:+39°13'41.0"
Vizuális fényesség:8.103
Távolság:352.113 parszek
RA sajátmozgás:19.6
Dec sajátmozgás:3
B-T magnitude:9.021
V-T magnitude:8.179

Katalógusok és elnevezések:
Megfelelő nevek   (Edit)
HD 1989HD 211005
TYCHO-2 2000TYC 3199-2654-1
USNO-A2.0USNO-A2 1275-17204440
HIPHIP 109714

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