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HD 206


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The Exceptionally Large Debris Disk around γ Ophiuchi
Spitzer images resolve the debris disk around γ Ophiuchi at both24 and 70 μm. The resolved images suggest a disk radius of ~520 AU at70 μm and >~260 AU at 24 μm. The images, along with aconsistent fit to the spectral energy distribution of the disk from 20to 350 μm, show that the primary disk structure is inclined by~50° from the plane of the sky at a position angle of 55° +/-2°. Among a group of 12 debris disks that have similar host starspectral types, ages, and infrared fractional luminosities, the observedsizes in the infrared and color temperatures indicate that evolution ofthe debris disks is influenced by multiple parameters in addition to theprotoplanetary disk initial mass.

Pulkovo compilation of radial velocities for 35495 stars in a common system.
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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
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Clusters in the Region of the North America Nebula.
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Observation and Astrometry data

Constellation:Cassiopée
Right ascension:00h06m59.67s
Declination:+53°58'29.5"
Apparent magnitude:8.981
Distance:266.667 parsecs
Proper motion RA:-1.4
Proper motion Dec:-0.5
B-T magnitude:9.019
V-T magnitude:8.985

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 206
TYCHO-2 2000TYC 3652-3-1
USNO-A2.0USNO-A2 1425-00173662
HIPHIP 576

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