J/other/IBVS/4678 Haro-Chavira infrared stars identifications (Skiff, 1999)
Identifications for the Haro-Chavira "infrared stars".
Skiff B.A.
=1999IBVS.4678....1S 1999IBVS.4678....1S
ADC_Keywords: Stars, variable
Abstract:
The first seven extremely-red Haro-Chavira stars were published by
Johnson et al. (1965ApJ...142.1249J 1965ApJ...142.1249J), which includes BVRIJHKLMN
photometry for them. The positions listed for these stars are
consistently nearly a full degree in error, as a consequence of which
they seem to have been overlooked in later literature. The offsets are
parallel to the direction of precession, and the error evidently
arises from the application of 100 years of precession motion with the
wrong sign. These stars were unambiguously identified using the
published charts, which are copied from the POSS-I prints of the
region.
In a follow-up work, Chavira (1967BOTT....4..197C 1967BOTT....4..197C) published a more
extensive list of stars based on far-red objective-prism and direct
plates. The main difficulty in the identifications was the poor
positions, some in error by 10'. The finder charts were thus
indispensable for positive identification on the sky. Two stars (HC 56
and HC 62) defeated my attempts to locate them.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 72 125 Positions and identifications
notes.dat 80 26 Individual notes
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 A2 --- --- [HC]
4- 6 I3 --- HC HC number
7 A1 --- n_HC [*] indicates a note in notes.dat file
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 18 F4.1 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 28 I2 arcsec DEs ? Declination (J2000)
30 A1 --- rPos [ASIF] Origin of position (1)
32- 41 A10 --- IRAS IRAS designation
43- 46 F4.1 mag bmag ? USNO-A2.0 blue magnitude
48- 50 F3.1 mag b-r ? b-r colour index
52- 54 F3.1 mag Imag Johnson I magnitude
56- 61 A6 --- SpType MK spectral type
63- 72 A10 ---- Name Other name
--------------------------------------------------------------------------------
Note (1): Source of the position as follows:
A = USNO-2.0, Cat. I/252
F = FASTT (Henden & Stone, 1998, Cat. J/AJ/115/296)
I = IRAS, Cat. II/125
S = SkyView, http://skview.gsfc.nasa.gov/cgi-bin/v3.0/skyview_advanced.pl
--------------------------------------------------------------------------------
Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 A2 --- --- [HC]
4- 6 I3 --- HC HC number
8- 80 A73 --- Note Text of the note
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Catherine Brunet, Patricia Bauer [CDS] 22-Oct-2002