II/68 Dearborn Catalogue of faint red stars (Lee+ 1947)
Dearborn Observatory Catalogue of faint red stars
Lee O.J., Baldwin R.J., Hamlin D.W.
<Ann. Dearborn Obs., vol. V, part 1A (1943)>
Lee O.J., Bartlett T.J.
<Ann. Dearborn Obs., vol. V, part 1B (1944)>
Lee O.J., Gore G.D., Baldwin T.J.
<Ann. Dearborn Obs., vol. V, part 1C (1947)>
=1947AnDea...5....1L 1947AnDea...5....1L
ADC_Keywords: Stars, faint ; Stars, late-type ;
Description:
The Dearborn Survey is the result of a survey of faint red stars
conducted at the Dearborn Observatory from about 1932 to 1947. It
covers the declination range -4.5deg to +90deg (54% of the Sky), and
consisted of over 1800 direct plates and spectrograms carrying single
or multiple exposures varying from a second to 4 hours. The magnitudes
in the catalog were obtained from direct plates mostly sensitive in
the 0.55-0.64µm wavelength region. The spectral types were obtained
from objective-prism plates with red-sensitive emulsion, and were
classified on the visibility of the TiO bands.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 36 44076 The Dearborn Observatory catalog
notes.dat 80 101 Notes to the catalog
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- DO [1/44076]+ Dearborn number
6 A1 --- n_DO *[#*] a note exists in the file "notes.dat"
7- 8 I2 h RAh Right Ascension 1900 (hours)
10- 13 F4.1 min RAm Right Ascension 1900 (minutes)
15 A1 --- DE- Declination 1900 (sign)
16- 17 I2 deg DEd Declination 1900 (degrees)
19- 20 I2 arcmin DEm Declination 1900 (minutes)
23- 26 F4.1 mag Rmag *? Magnitude on red-sensitive emulsion
27 A1 --- n_Rmag *[?*V] Uncertainty and variability flag
29- 32 A4 --- SpType Dearborn spectral type
34- 36 A3 --- HDtype *Spectral type from HD (catalog III/135)
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Note on n_DO: the '#' indicates a note from the original catalogue,
while the '*' indicates a note added at NASA Goddard Space Flight
Center by Nagy (1979)
Note on Rmag: the magnitude was obtained through comparison with the
International Polar Sequence; its accuracy was estimated to 0.2mag.
Note on n_Rmag: the following flags are used:
* denotes an approximate value (parentheses around the magnitude in
the published version)
V for known variables
? for suspected variables
Note on HDtype: only 5764 stars (13%) are in HD.
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- DO [1/44076]+= Dearborn number
6 A1 --- Cont [+] Indicates that there is a continuation
in the next record
8- 80 A73 --- Text Text of note
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Nomenclature Notes:
Stars from this survey are designated sometimes as "DC" (Dearborn
Catalogue) in the literature. The acronym "DO" (Dearborn Observatory)
is recommended to designate the stars from this survey.
History:
* August 1979 (Nagy, 1979):
The Dearborn Observatory Catalogue of Faint Red Stars has been made
machine-readable at the Goddard Space Flight Center and Wellesley
College (Mrs. Sawyer, Whitin Observatory). All of the data in this
catalogue has been keypunched, proofread and transferred to magnetic
tape.
* 11-Jan-1997: at CDS (Francois Ochsenbein), the declination of DO 1007
was corrected, and the original value of 99.9 Rmag reported for variables
was changed to a 'V' flag.
The notes mentioned in Nagy (1979) document were reported in the
file "notes".
This standardized document was added.
* June 2010: typos reported by B. Skiff fixed (concerns DO 781, 1088,
1811)
References:
Nagy, T.A., 1979, "Documentation of the machine-readable version of
the Dearborn Observatory Catalogue of Faint Red Stars",
NASA ref R-SAW-8/79-01
(End) Francois Ochsenbein [CDS] 11-Jan-1997