Tabby's star ☠️☠️ | Type II civilization 🗿 | space edit |

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  • Опубліковано 24 січ 2025

КОМЕНТАРІ • 6

  • @HackerEXE10101
    @HackerEXE10101 5 місяців тому +1

    Tabby's Star (designated as KIC 8462852 in the Kepler Input Catalog and also known by the names Boyajian's Star and WTF Star) is a binary star in the constellation Cygnus approximately 1,470 light-years (450 parsecs) from Earth. The system is composed of an F-type main-sequence star and a red dwarf companion.
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    Observation data
    Epoch J2000.0 Equinox J2000.0 (ICRS)
    Constellation
    Cygnus
    Right ascension
    20h 06m 15.45265s[1]
    Declination
    +44° 27′ 24.7909″[1]
    Apparent magnitude (V)
    +11.705±0.017[2]
    Characteristics
    KIC 8462852 A
    Evolutionary stage
    Main sequence[2]
    Spectral type
    F3V[2]
    B−V color index
    0.557
    V−R color index
    0.349
    R−I color index
    0.305
    J−H color index
    0.212
    J−K color index
    0.264
    KIC 8462852 B
    Spectral type
    M2V[3]
    Astrometry
    KIC 8462852 A
    Radial velocity (Rv)
    −0.46±3.91[1] km/s
    Proper motion (μ)
    RA: −10.375±0.012 mas/yr[1]
    Dec.: −10.273±0.011 mas/yr[1]
    Parallax (π)
    2.2545 ± 0.0099 mas[1]
    Distance
    1,447 ± 6 ly
    (444 ± 2 pc)
    Absolute magnitude (MV)
    3.08[2][4]
    KIC 8462852 B
    Proper motion (μ)
    RA: −10.097±0.231 mas/yr[5]
    Dec.: −10.610±0.254 mas/yr[5]
    Parallax (π)
    2.2470 ± 0.1620 mas[5]
    Distance
    1,500 ± 100 ly
    (450 ± 30 pc)
    Position (relative to Tabby's Star)[3]
    Component
    KIC 8462852 B
    Epoch of observation
    2019
    Angular distance
    1951.88±0.06 mas
    Position angle
    96.062±0.004°
    Projected separation
    880±10 AU
    Details
    KIC 8462852 A
    Mass
    1.43[2] M☉
    Radius
    1.58[2] R☉
    Luminosity (bolometric)
    4.68[2] L☉
    Surface gravity (log g)
    4.0±0.2[6] cgs
    Temperature
    6750±120[2] K
    Metallicity
    0.0±0.1[2]
    Rotation
    0.8797±0.0001 days[2]
    Rotational velocity (v sin i)
    84±4[2] km/s
    KIC 8462852 B
    Mass
    0.44±0.02[3] M☉
    Radius
    0.45±0.02[3] R☉
    Temperature
    3720±70[3] K

  • @0ω0-χ9ι
    @0ω0-χ9ι 22 години тому

    Reptilians or maybe anunnakis