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WOOLLEY - Woolley Catalog of Stars within 25 Parsecs |
HEASARC Archive |
Overview
This catalog was constructed at the Royal Greenwich Observatory in order to enlarge the Gliese (1957, Mitt. Astron. Rechen-Inst., Ser. A, No. 8) compilation. It contains data on stars nearer than 25 pc that were not included in that version of Gliese's catalog, plus some additional information that had been published after 1957 on stars which were present in the 1957 version of the Gliese catalog. The electronic version contains essentially all information given in Table Ia of the published Woolley catalog, plus positional data, and most cross references to other catalogs given in Table IIa. The notes flags in Table Ia are not included because the notes are not machine-readable. Omitted from Table IIa are the finding-chart indicators (Lowell G numbers or notes references) and miscellaneous cross identifications to other names and catalog identifiers. Tables Ib and IIb, containing 21 systems originally included in Gliese's (1957) catalog but for which revised parallaxes have placed them farther than 25 pc are not included in the electronic version.Data in the electronic version include the Gliese number (newly added stars by Woolley have numbers beginning with 9001, but new parallaxes have removed 9419 and added 9849 and 9850 from the < 25 parsecs sample), component identifications for multiple systems, parallaxes, annual proper motions, radial velocities, (U,V,W) space velocities, box orbit parameters (omega, e, i), spectral types, UBV data, absolute visual magnitudes, positions, GCTP (General Catalogue of Trigonometric Stellar Parallaxes) and its Supplement (Jenkins 1952, 1963) names, HD, DM, GCRV (General Catalogue of Stellar Radial Velocities, Publ. Carnegie Inst., Washington, No. 601, Wilson 1953) and other catalog identifiers, BS (= HR) (Hoffleit 1964) numbers, and remarks codes for spectroscopic binaries (SB), doubles, variables, etc.
Note that there is an entry in this catalog for the Sun, for which many fields, such as RA and Dec, have not been populated.
Catalog Bibcode
1970ROAn....5....1WCaveats
The positions given for the stars in this table are (1) often not of high accuracy and (2) correspond to epoch 1950, and thus they do not include over a half-century of proper motions. Better quality positions for these stars are available in the GLIESE2MAS table.References
Catalogue of Stars within 25 Parsecs of the Sun
Woolley R.v.d.R., Epps E.A., Penston M.J., Pocock S.B.
<Royal Obs. Ann. 5 (1970)>
=1970ROAn....5....1W
Provenance
This table was recreated by the HEASARC in December 2002 based on the 21-Jul-1997 version of the CDS Catalog V/32A.Parameters
Name
The HEASARC created the name parameter for stars in the Woolley Catalog in
accordance with the recommendations of the Dictionary of Nomenclature of
Celestial Objects and their implementation in Simbad. The name of the star
has been constructed using the prefix "GJ " (for Gliese and Jahreiss), the
sequence number in the present catalog (which is usually the number given to
it in the Gliese (1957) Catalog of Nearby Stars, except for stars newly added
by Woolley which have numbers beginning with 9001), and the component
identification suffix "A", "B", etc., when there are multiple comments.
Sequence_Number
The sequence number in the Woolley Catalog, which is usually the number given
to it in the Gliese (1957) Catalog of Nearby Stars, except for stars newly
added by Woolley which have numbers beginning with 9001.
Component_ID
For multiple stars, this is the component identification suffix, "A" for the
brightest component, "B" for the next brightest, etc.
Parallax
The parallax of the star, pi, in milliarcseconds (mas). Notice that the this
can be used to calculate the distance D of the star, in parsecs (pc): D =
1000/pi; e.g., a star with a parallax of 100 mas is 10 pc distant. The
parallaxes are trigonometric parallaxes in many cases, mostly taken from the
"General Catalog of Trigonometric Stellar Parallaxes" and its supplement
(Jenkins, L.F. 1952 and 1963, New Haven, Yale University Observatory).
However, entries with a parallax_error_code of "S" are not trigonometric but
are spectroscopic parallaxes.
Parallax_Error
The probable error in the parallax of the star, in
milliarcseconds (mas), for stars for which trigonometric parallaxes are
available.
Parallax_Error_Code
This parameter has possible (non-blank) values of 8, 9,
or S. A value of 8 means that the percentage error in the (trigonometric)
parallax is less than 15%, 9 means that it is < 10%, while a value of S
means that the parallax quoted is a spectroscopic not a trigonometric parallax.
Proper_Motion_RA
The proper motion of the star in the Right Ascension
direction, in seconds of time per year (s/yr).
Proper_Motion_Dec
The proper motion of the star in the Declination
direction, in arcseconds per year (arcsec/yr).
Radial_Velocity
The radial velocity of the star, in kilometers per
second (km/s).
Radial_Velocity_Code
A flag parameter which indicates special circumstances
concerning the radial velocity: "J" implies that the quoted value is a mean
value for the combined components of a binary, while "V" implies that the
radial velocity is variable.
U_Velocity
The U-component of the space velocity of the star, i.e., its
spatial velocity in the direction towards the Galactic Center, in
kilometers per second (km/s).
V_Velocity
The V-component of the space velocity of the star, i.e., its
spatial velocity in the direction of the Galactic rotation), in kilometers
per second (km/s).
W_Velocity
The W-component of the space velocity of the star, i.e., its
spatial velocity in the direction towards the North Galactic Pole, in
kilometers per second (km/s).
Box_Omega
The box orbit parameter, omega; this is the distance of the
epicenter of the box from the Galactic center, normalized to the solar
distance from the Galactic center and where the unit of velocity is the
Sun's circular velocity, taken to be 250 km/sec. The solar motion used
was u(Sun) = +10 km/sec, v(Sun) = +10 km/sec, w(Sun) = +7 km/sec, while
the Oort's constants adopted were A = +14.6 km/sec/kpc, B = -11.5 km/sec/kpc.
For multiple systems, omega was computed for the first component only, using
the available values of U, V, and W.
Box_E
The eccentricity of the box orbit.
Box_I
The box urbit angle, i.e.,the highest inclination of the orbit,
in radians.
Luminosity_Class
A code for the luminosity class of the star, where
1 means supergiant (luminosity class of I or c), 2 means bright giant (II or
c), 3 means giant (III or g), 4 means subgiant (IV or sg), 5 means dwarf
(V or d), 6 means subdwarf (VI or sd), and 7 means white dwarf (D or wd).
Spect_Type
The spectral type of the star: MK where available, mostly from
Jaschek et al. (1964, Catalogue of Stellar Spectra Classified in the
Morgan-Keenan System, Publ. La Plata Obs., Ser. Astron. Vol. 28, No. 2);
preference was given to classifications in the GCRV (Wilson 1953) for the
remainder of the spectral types. Notice that peculiarity indices such as
"e" and "n" are rendered in (non-standard) upper-case format.
Spect_Type_Code
A code flag for the quoted spectral type: 1 means that it
is an MK type, 2 means that it is a combined MK type for a multiple system,
4 means that it is a combined non-MK type for a multiple system, and blank
means that it is a non-MK type.
App_Mag
The apparent magnitude of the star in the Johnson V band, or in the
photovisual band [m(v)], or the photographic band [m(pg)]. The V-band value is
preferred, when available, and sometimes the quoted magnitude is a weighted
mean. Photoelectric (V-band) data are given to a precision of 0.01 magnitudes,
while the photographic (m(v) and m(pg)) magnitudes to a precision of 0.1
magnitudes.
App_Mag_Code
A flag parameter indicating the type of apparent magnitude for the particular
star: a blank value means that the quoted value is the Johnson V-band
magnitude, while "J" means a combined magnitude for a multiple syste, "P"
means a photographic magnitude, and "V" means that the magnitude is variable.
BV_Color
The (B-V) color of the star; this is blank if no value was
available.
UB_Color
The (U-B) color of the star; this is blank if no value was
available.
Abs_Vmag
The absolute visual magnitude M(V) of the star, computed from
the apparent magnitude m and the parallax pi using the standard relation:
M = m + 5*log(pi) + 5. This is given to a precision of 0.01 magnitudes if
both the probable error in the parallax is < 10% and the apparent magnitude
is a V-band magnitude given to 0.01 magnitudes precision.
RA
The Right Ascension of the star in the selected equinox, but for
epoch 1950.0. This was given in the B1950 equatorial system and to a
precision of 1 second of time in the original table.
Dec
The Declination of the star in the selected equinox, but for
epoch 1950.0. This was given in the B1950 equatorial system and to a
precision of 0.1 arcminutes (6 arcseconds) in the original table.
LII
The Galactic Longitude of the star.
BII
The Galactic Latitude of the star.
GCTP_Number
The number of the star in the Yale General Catalog of
Trigonometric Parallaxes (GCTP; Jenkins (1952), (1963); CDS Catalog <I/60>).
Notice that in Simbad, the prefix used for stars in this catalog, is "PLX",
e.g., the star with gctp_number = 2388, is listed as "PLX 2388"; also be
aware that, in most cases, the component stars in visual or
common-proper-motion binaries all have the same gctp_number.
HD_Number
The Henry Draper Catalog (HD) number of the star.
DM_Name
The Durchmusterung (BD, CD, or CP) designation of the star.
GCRV_Number
The number of the star in the General Catalog of Stellar Radial
Velocities (GCRV; Wilson (1953); CDS Catalog <III/21>).
Alt_Name
An alternative name for the star from a Proper-Motion Catalog: LTT names come
from the Luyten Two Tenths Catalog (Luyten 1957, 1961); Ci18 names come from
Porter, Yowell, and Smith, (1915, Publ. Cincinnati Obs., No. 18), Ci20 names
come from Porter, Yowell, and Smith, (1930, Publ. Cincinnati Obs., No. 20);
and GC names come from the General Catalogue (Boss 1937, General Catalogue of
33342 Stars, Publ. Carnegie Inst., Washington, No. 468).
HR_Number
The number of the star in the Bright Star (BS), otherwise
known as the Harvard Revised (HR), Catalog (CDS Catalog <V/50>).
Vyss_Number
The number of the star in the red dwarf lists of Vyssotsky and collaborators:
Vyssotsky, A. N. 1943, Astrophys. J. 97, 381.
Vyssotsky, A. N. 1956, Astrophys. J. 61, 201.
Vyssotsky, A. N. 1958, Astrophys. J. 63, 211.
Vyssotsky, A. N. and Bateer, A. M. 1952, Astrophys J. 116, 117.
Vyssotsky, A. N., Janssen, E. M., Miller, W. J. and Walther, M. E. 1946,
Astrophys. J. 104, 234.
Remark_Code_1
This parameter contains codes for various remarks, as follows:
Code Meaning
2 SB spectroscopic binary
3 ST spectroscopic triple
4 D unresolved double, unknown nature
5 UV UV Ceti flare star
6 EB eclipsing binary
7 SR semi-regular variable
8 AB astrometric binary
9 PL NEB planetary nebula
Remark_Code_2
This parameter also contains codes for various remarks, as follows:
Code Meaning
2 SB spectroscopic binary
3 ST spectroscopic triple
4 D unresolved double, unknown nature
5 UV UV Ceti flare star
6 EB eclipsing binary
7 SR semi-regular variable
8 AB astrometric binary
9 PL NEB planetary nebula
Class
The HEASARC Browse object classification for the star, based on
the value of the spectral type parameter, spect_type.
Contact Person
Questions regarding the WOOLLEY database table can be addressed to the HEASARC Help Desk.Page Author: Browse Software Development Team
Last Modified: Monday, 16-Sep-2024 17:36:51 EDT
- HEASARC Director: Dr. Andy Ptak
- NASA Official: Dr. Andy Ptak
- Web Curator: J.D. Myers
- Last Modified: 16-Sep-2024