Field | Type | Description
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sybid | int, no nulls |
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SB8 | int | Sequential number
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RAH | int | Hours RA, B1900.0; units: h
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RAM | float | Minutes RA, B1900.0; units: min
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DecSign | char | Sign Dec, B1900.0
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DecD | int | Degrees Dec, B1900.0; units: deg
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DecM | int | Minutes Dec, B1900.0; units: arcmin
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HD | char | Henry Draper Catalog (HD) number
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HD_Comp | char | HD letter designations
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DM_Cat | char | Durchmusterung catalog ID, ''BD'', ''CD'', ''CP''
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DM | char | Durchmusterung catalog number, SZZNNNNN
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DM_Supp | char | DM supplement letter
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DM_Comp | char | DM supplemental identifier
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ID | char | Alternate designations
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Name | char | Star name: Flamsteed, Bayer, GCVS, etc.
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Name_Rem | char | indicates remark for Name
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Mag_1 | float | Primary magnitude, as indicated by Mag_1_Code; units: mag
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Mag_1_Code | char | ''V'', ''P'', or '' '', see comment; B=photoelectric on B scale; V=photoelectric; P=photo- graphic; =visual, not determined photoelectrically
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Mag_1_Rem | char | indicates remark for Mag_1
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Mag_2 | float | Secondary magnitude, as indicated by Mag_2_Code; units: mag
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Mag_2_Code | char | ''V'', ''P'', or '' '', see comment Mag_1_Code
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Mag_2_Rem | char | indicates remark for Mag_2
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SpType_1 | char | type of primary
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SpType_1_Rem | char | indicates remark for SpType_1
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SpType_2 | char | type of secondary
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SpType_2_Rem | char | indicates remark for SpType_2
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Period | float | Period of the system, in days or years
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Period_Code | char | indicates Period given in years
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Period_Rem | char | indicates remark for Period
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Epoch | float | Epoch; units: d
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Epoch_Rem | char | indicates remark for Epoch
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Peri_1_Unc | char | idicates uncertainty for Peri_1
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Peri_1 | float | Longitude of periastron; units: deg
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Peri_1_Rem | char | indicates remark for Peri_1
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Peri_2 | float | Longitude of periastron; units: deg
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Peri_2_Rem | char | indicates remark for Peri_2
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Ecc_1 | float | Eccentricity
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Ecc_1_Rem | char | indicates remark for Eccen_1
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Ecc_2 | float | Eccentricity
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Ecc_2_Rem | char | indicates remark for Eccen_2
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K1_Unc | char | ''='' indicates uncertainty in K1
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K1 | float | Semiamplitude; units: km/s
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K1_Rem | char | ''*'' indicates remark for K1
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K2_Unc | char | ''='' indicates uncertainty in K2
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K2 | float | Semiamplitude; units: km/s
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K2_Rem | char | ''*'' indicates remark for K2
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Vel_1_Unc | char | indicates uncertainty in Vel_1
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Vel_1 | float | Systemic velocity; units: km/s
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Vel_1_Rem | char | indicates remark for Vel_1
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Vel_2 | float | Systemic velocity; units: km/s
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Vel_2_Rem | char | indicates remark for Vel_2
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MassFunc | real | Function; units: Msol
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Mass_1 | real | Primary mass; units: Msol
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Mass_2 | real | Secondary mass; units: Msol
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MajAxis_1 | real | axis; units: km; scale by 1000000
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MajAxis_2 | real | axis; units: km; scale by 1000000
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Orbit_Qual | char | quality of the orbit, see comment; a=definitive orbit; b=good orbit, but some uncertainty remains about some of the elements; c=average orbit; d= poor orbit; e=very poor orbit; i=not enough information to place in a category.
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