I/298               LSPM-North Catalog                 (Lepine+ 2005)
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A Catalog of Northern stars with annual proper motions larger than 0.15"
     Lepine S., Shara M.M.
    <Astron. J. 129, 1483 (2005)>
    =2005AJ....129.1483L
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ADC_Keywords: Surveys; Proper motions; Stars, nearby; Stars, high-velocity

Keywords: astrometry - solar neighborhood - stars: kinematics -
          stars: Population II - surveys - white dwarfs

Description:
    The  LSPM catalog is a comprehensive list of 61,977 stars north of the
    J2000  celestial equator that have proper motions larger than 0.15"/yr
    (local-background-stars   frame).   The  catalog  has  been  generated
    primarily  as a result of our systematic search for high proper motion
    stars  in the Digitized Sky Surveys using our SUPERBLINK software.  At
    brighter magnitudes,  the catalog incorporates stars and data from the
    Tycho-2 Catalogue  (I/259)  and also,   to a lesser  extent,  from the
    All-Sky Compiled Catalogue of 2.5million stars (ASCC-2.5, Cat. I/280).

    The LSPM catalog considerably expands  over  the  old  Luyten  (Luyten
    Half-Second [LHS,  Cat.  I/87]  and New Luyten Two-Tenths [NLTT,  Cat.
    I/98]) catalogs, superseding them for northern declinations. Positions
    are given with  an accuracy  of <~100  mas at  the 2000.0  epoch,  and
    absolute proper motions are given  with  an  accuracy  of  ~8  mas/yr.
    Corrections to the local-background-stars  proper  motions  have  been
    calculated, and absolute proper motions in the extragalactic frame are
    given.  Whenever available,  we also give optical BT and VT magnitudes
    (from Tycho-2, ASCC-2.5), photographic BJ, RF, and IN magnitudes (from
    USNO-B1 catalog, I/284),  and infrared J,  H,  and Ks magnitudes (from
    2MASS, Cat. II/246).  We also provide an estimated V magnitude and V-J
    color  for  nearly  all   catalog   entries,    useful   for   initial
    classification  of the stars.  The catalog is estimated to be over 99%
    complete  at  high  Galactic  latitudes  (|b|>15°)  and  over  90%
    complete at low Galactic latitudes (|b|>15°),  down to a magnitude
    V=19.0,   and has a limiting magnitude V=21.0.  All the northern stars
    listed in the LHS and NLTT catalogs have been reidentified,  and their
    positions,   proper motions,  and magnitudes reevaluated.  The catalog
    also lists a large number of completely new objects,  which promise to
    expand very  significantly the census of  red dwarfs,  subdwarfs,  and
    white dwarfs in the vicinity of the Sun.

    All Luyten's  NLTT stars north of the  J2000 celestial equator that do
    not  appear  in  the  LSPM  catalog  are  given  in  table3,  with  an
    explanation as to why they were not included in the LSPM catalog.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
lspm_n.dat       257    61977   The LSPM catalog (north)
table3.dat        94     1859   NLTT stars not listed in the LSPM catalog


See also:
    I/87  : LHS Catalogue, 2nd Edition (Luyten 1979)
    I/98  : NLTT Catalogue (Luyten, 1979)
    I/259 : The Tycho-2 Catalogue (Hog+ 2000)
    I/280 : All-sky Compiled Catalogue of 2.5 million stars (Kharchenko 2001)
    I/284 : The USNO-B1.0 Catalog (Monet+ 2003)
    I/289 : UCAC2 Catalogue (Zacharias+ 2004)
   II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
   J/ApJ/582/1011 : Revised NLTT Catalog (Salim+, 2003)
   J/AJ/124/1190 : Northern high proper motion stars in DSS (Lepine+, 2002)
   J/AJ/125/1598 : New high proper motion stars in Northern sky (Lepine+, 2003)


Byte-by-byte Description of file:  lspm_n.dat

   Bytes Format  Units    Label   Explanations

   1-  4  A4     ---      ---     [LPSM]
   6- 16  A11    ---      LSPM    LSPM star name (1)
  18- 22  A5     ---      LHS     ? LHS catalogue (I/87) identification
  24- 28  I5     ---      NLTT    ? NLTT catalogue (I/98) identification (2)
  30- 35  I6     ---      HIP     ? Hipparcos catalog (I/239) identification
  37- 40  I4     ---      TYC1    ? Tycho-2 catalog (I/259) identification
  42- 45  I4     ---      TYC2    ? Tycho-2 catalog (I/259) identification
      47  I1     ---      TYC3    ? Tycho-2 catalog (I/259) identification
  49- 55  I7     ---     ASCC2.5  ? ASCC2.5 catalog (I/280) identification
  57- 64  I8     ---      UCAC2   ? UCAC2 catalog (I/289) identification
  66- 95  A30    ---      OName   Original name in astronomical literature (3)
  97-112  A16    ---      2MASS   2MASS catalog (II/246) identification
 114-125  A12    ---     USNO-B1  USNO-B1.0 catalog (I/284) identification
 128-137  F10.6  deg      RAdeg   Right Ascension in degrees (J2000, Ep=J2000)
 139-148  F10.6  deg      DEdeg   Declination in degrees (J2000, Ep=J2000)
 150-156  F7.3  arcsec/yr rPM     Total relative Proper Motion (4)
 158-164  F7.3  arcsec/yr rPMRA   Relative proper Motion in Right Ascension (4)
 166-172  F7.3  arcsec/yr rPMDE   Relative Proper Motion in Declination (4)
 174-180  F7.3  arcsec/yr pm      Total Proper Motion (5)
 182-188  F7.3  arcsec/yr pmRA    Proper Motion in Right Ascension (5)
 190-196  F7.3  arcsec/yr pmDE    Proper Motion in Declination (5)
 198-199  A2     ---      Aflag   [ASTO ] Astrometric Flag (6)
 201-205  F5.2   mag      Bmag    ?=99.99 Optical B magnitude (7)
 207-211  F5.2   mag      Vmag    ?=99.99 Optical V magnitude (7)
 213-216  F4.1   mag      BJmag   ?=99.9 Photographic Blue (IIIaJ) magnitude (8)
 218-221  F4.1   mag      RFmag   ?=99.9 Photographic Red (IIIaF) magnitude (8)
 223-226  F4.1   mag      INmag   ?=99.9 Photographic Infrared (IVN) mag. (8)
 228-232  F5.2   mag      Jmag    ?=99.99 Infrared J magnitude (9)
 234-238  F5.2   mag      Hmag    ?=99.99 Infrared H magnitude (9)
 240-244  F5.2   mag      Kmag    ?=99.99 Infrared K_s_ magnitude (9)
 246-251  F6.2   mag      Vemag   ?=99.9 Estimated V magnitude (10)
 253-257  F5.2   mag      V-J     ?=99.9 Estimated V-J color (10)

Note (1): Name based on J2000 position.

Note (2): NLTT catalog identification is the record number (recno)
    in the original NLTT table (Cat. I/87)
Note (3): Original name of the star in the literature, as determined
    from a search in the Simbad database. In the current version of the
    catalog, OName is only given for stars that have no counterpart in
    neither of the LHS, NLTT, HIP, Tycho-2, ASCC2.5, or UCAC2 catalogs,
    and it is meant to distinguish, among stars with only an LSPM
    identifier, those that have been reported previously in the
    literature from those that are genuine, "new" discoveries.
Note (4): Relative proper motions, as calculated by the SUPERBLINK software.
    This is the proper motion of the star measured relative to the mean
    position of all objects within 4 arcminutes. Values are only provided
    for stars detected by SUPERBLINK.
Note (5): Absolute proper motions, determined relative to a fixed
    reference frame. The ICRS reference frame defined by Tycho-2/2MASS
    positions is used. Absolute proper motions of stars detected by
    SUPERBLINK are obtained by applying zonal corrections to the relative
    proper motions. The local zonal correction vectors can be recovered by
    comparing [pmRA,pmDE] to [rPMRA,rPMDE].
Note (6): the letters refer to the following sources:
    A = ASCC-2.5 Catalog;
    S = SUPERBLINK proper motion, 2MASS position;
    T = Tycho-2 Catalog;
    O = Other source.
Note (7): Optical magnitudes from the Tycho-2 and ASCC-2.5 catalog.
    The B, V from Tycho-2 are obtained after a conversion from BT and
    VT following the prescription of the introduction to the Hipparcos
    and Tycho catalog. B and V magnitudes are extracted directly from the
    ASCC-2.5, for stars that are not in the Tycho-2 catalog.
Note (8): Photographic photometry from the POSS-II plates.
    All values are from the USNO-B1.0 catalog for stars with USNO-B1
    identifications. Values for stars with no USNO-B1 identifications have
    been calculated separately from Digitized Sky Survey scans.
Note (9): All values are from the 2MASS All-Sky Point Source Catalog.

Note (10): Optical V magnitude and optical-to-infrared V-J color
    estimated for every star from available photometry. Stars with no
    Tycho-2/ASCC-2.5 photometry have Ve estimated from the photographic
    BJ and RF magnitudes. Stars with no 2MASS counterparts have their
    V-Je estimated with the help of IN.


Byte-by-byte Description of file:  table3.dat

   Bytes Format Units     Label   Explanations

   1-  6  I6    ---       NLTT    NLTT catalog number (1)
   8- 15  F8.3  deg       RALdeg  Right Ascension in degrees (J2000) in the
                                  NLTT catalog
  17- 24  F8.3  deg       DELdeg  Declination in degrees (J2000) in the
                                  NLTT catalog
  26- 29  F4.1  mag       rmag    Red magnitude in the NLTT catalog
  31- 34  F4.1  mag       bmag    Photographic blue magnitude in NLTT catalog
  36- 41  F6.3  arcsec/yr pmL     Proper motion in NLTT catalog
  43- 45  I3    deg       pmLPA   Proper motion angle in NLTT catalog
      47  A1    ---       why     [BDLNST] Explicative flag (2)
  49- 59  F11.6 deg       RAdeg   Right Ascension in degrees (J2000)
  61- 70  F10.6 deg       DEdeg   Declination in degrees (J2000)
  72- 78  F7.3  arcsec/yr pm      Proper motion
  80- 86  F7.3  arcsec/yr pmRA    Proper motion in Right Ascension
  88- 94  F7.3  arcsec/yr pmDE    Proper Motion in Declination

Note (1): NLTT catalog identification is the record number (recno)
    in the original NLTT table (Cat. I/98)
Note (2): the letter means the following:
    B = Object does not show up on POSS plates (bogus?);
    D = Object is a duplicate of another NLTT star;
    L = Object too slow according to NLTT catalog;
    N = Object is a proper motion nebula;
    S = Object too slow according to SUPERBLINK;
    T = Object too slow according to Tycho-2 catalog.

    Detailed explanations are in the "NLTT stars missing" section below.


NLTT stars missing in the LSPM catalog:
    A flag value of "B" indicates that the star could not be found by
    direct examination of the Digitized Sky Survey scans of the Palomar
    Sky Survey (POSS) photographic plates. This means that an area 3
    arcmin from the NLTT position was searched for signs of a moving
    object, and none was found with a significant proper motion. The star
    is suspected to be either a bogus NLTT entry, or to have a very large
    error on its NLTT position. If the latter is true, then the object
    most probably figures in the LSPM catalog as a "new" high proper
    motion star. Corrected positions and proper motions are listed as
    "0.0".

    A flag value of "D" means that the object is a duplicate NLTT catalog
    entry. The object exists, but is already accounted for under a
    different NLTT catalog number. Corrected positions and proper motions
    are listed as "0.0". A total of 38 stars in the table fall in this
    category.

    A flag value of "L" means that the star has an NLTT proper motion
    under the nominal lower limit (0.15 arcsec per year) of the LSPM
    catalog. Objects with this flag didn't have their proper motion
    remeasured with SUPERBLINK, however. Only 3 stars in the table fall in
    this category.

    A flag value of "N" means that although the object was found to be
    real, it is not a star but rather a proper motion nebula. The nebular
    nature of the objects was confirmed from direct inspection of
    Digitized Sky Survey images of POSS plate. This is the case for only 2
    NLTT objects (NLTT 13414 and NLTT 13424).

    A flag value of "S" means that the proper motion of the star was
    remeasured by SUPERBLINK, and found to be under the nominal lower
    limit (0.15 arcsec per year) of the LSPM catalog. Corrected positions
    and proper motions are provided.

    A flag value of "T" means that the star is in the Tycho-2 catalog, and
    that its Tycho-2 proper motion is under the nominal lower limit (0.15
    arcsec per year) of the LSPM catalog. Corrected positions and proper
    motions are provided.

Acknowledgments:
    Prepared by S. Levine.
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(End)              Greg Schwarz [AAS],  Francois Ochsenbein [CDS]    19-Jul-2005