I/87B LHS Catalogue, 2nd Edition (Luyten 1979)
LHS Catalogue: a catalogue of stars with proper motions exceeding 0.5"
annually.
Luyten W.J.
<University of Minnesota, Minneapolis, September 1979>
=1979LHS...C......0L 1979LHS...C......0L
ADC_Keywords: Proper motions ;
Description:
The catalogue gathers stars with large proper motions, the large
majority coming out of the Bruce Proper Motion Survey (W.J. Luyten).
804 fields in the Palomar Survey have been hand-blinked or processed
by an automated blink-machine; 160 low galactic latitude fields
could not be handled. There are therefore many less stars with
high proper motion south of -33 degrees (limit of the Palomar Survey)
compared to the Northern hemisphere.
Stars with proper motions larger than 2arcsec/yr are numbered 1 to 100;
stars with proper motions between 1 and 2arcsec/yr are numbered 101
to 1000 ; numbers 1001 through 5000 are assigned to stars with
proper motions between 0.5 and 1arcsec/yr. The stars which appear
to have motions between 0.480 and 0.499arcsec/yr have been assigned
numbers larger than 5000.
Numbers larger than 6000 refer to Appendix II of the printed
publication, containing stars for which at one time or another a
value larger than 0.49arcsec/yr was published; these numbers are not
listed in the printed version of the catalogue.
All proper motions have been reduced to the Palomar-Bruce system.
The catalogue supersedes the "Catalogue of Stars with Motions
exceeding 0.5" annually" (LFT) published in 1955 (CDS ref. I/54)
See also:
I/98 : NLTT Catalogue (proper motion exceeding 0.2" annually)
I/279 : Revised Luyten Half-Second Catalogue (Bakos+ 2002ApJS..141..187B 2002ApJS..141..187B)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 90 4470 The LHS catalogue
notes.dat 63 411 Notes to LHS stars
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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 A5 --- LHS [1-90ab ]+ designation
6 A1 --- Note [*] '*' note detailed in file "notes.dat"
7- 21 A15 --- Name Other designation
23- 24 I2 h RAh Right Ascension B2000 (hours)
25- 26 I2 min RAm Right Ascension B2000 (minutes)
27- 28 I2 s RAs Right Ascension B2000 (seconds)
29 A1 --- DE- Declination B2000 (sign)
30- 31 I2 deg DEd Declination B2000 (degrees)
32- 34 I3 0.1arcmin DEdm Declination B2000 (deci-minutes)
36- 37 I2 h RA1950h Right Ascension B1950 (hours)
38- 39 I2 min RA1950m Right Ascension B1950 (minutes)
40- 41 I2 s RA1950s Right Ascension B1950 (seconds)
42 A1 --- DE1950- Declination B1950 (sign)
43- 44 I2 deg DE1950d Declination B1950 (degrees)
45- 47 I3 0.1arcmin DE1950dm Declination B1950 (deci-minutes)
49- 52 F4.1 mag Rmag ? Red magnitude
54- 57 F4.1 mag Pmag ? Photographic magnitude
58 A1 --- l_Pmag [+] '+' when Pmag is a lower value
59- 61 A3 --- Sp Spectral type
62- 64 A3 --- Color [ bafgkm±] classification based on colour
65- 70 F6.3 arcsec/yr pm ? Total proper motion (1)
71 A1 --- u_pm Uncertainty flag on proper motion
72- 76 F5.1 deg pmPA [0/360[? Position angle of proper motion (1)
77- 90 A14 --- Disc Original (discovery) name or author
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Note (1): the proper motion is empty for LHS 6219, indicated as
"plate flaw" in the catalogue.
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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 A5 --- LHS Star
7- 63 A57 --- Text Text of note
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Historical Notes:
* March 1984: first announced in CDS Inf. Bull. 26
* 16-Mar-1995 (version 'A'): reformatted at CDS, transformed to
lower-case, and added notes.dat.
Duplicate entry LHS 3224 has been deleted
Erroneous BD+04 3561 number for Barnard's star (LHS 57) removed
* 15-Jul-1998 (version 'B'): following a message by John Gizis
(), two erroneous records
(LHS 2297 and 3038) have been corrected.
(End) Francois Ochsenbein [CDS] 15-Jul-1998