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I/316 Lowell GR* red stars (Giclas+ 1972-1978)
The following files can be converted to FITS (extension .fit or fit.gz)
gr.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=I/316
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Beginning of ReadMe :I/316 Lowell GR* red stars (Giclas+ 1972-1978)
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Lowell GR* red stars
Giclas H.L., Burnham R., Thomas N.G.
<Lowell Obs. Bull. 7, 217 (1972); 8, 9 (1975); 8, 51 (1978)>
=1972LowOB...7..217G
=1975LowOB...8....9G
=1978LowOB...8...51G
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ADC_Keywords: Stars, late-type
Description (B. Skiff):
This file shows accurate coordinates for the 500 red stars found by
Giclas et al. near the south galactic pole. This was part of a general
survey of large proper motion stars. In 2002 August I sent Gerard
Jasniewicz corrections for the first batch of 47 stars, mainly just to
see for myself what sorts of stars are involved. These 47 stars were
observed photoelectrically by Warren (1976MNRAS.176..667W), who
obtained UBV photometry. Although every star was a dwarf, they were
not extraordinarily red, but merely garden-variety late-K and early-M
dwarfs. Gerard corrected all those entries in SIMBAD, and the UBV data
are linked.
I have now gone through the entire list and show improved positions
below. For most stars UCAC3 positions were adopted. In this part of
the sky UCAC3 draws from both the Schmidt plate-scans and the Yale SPM
series as well as the UCAC astrograph series. The multiple epochs mean
the positions and proper motions for the fainter stars are usually the
best ones. There are still a few where the motion is forced to zero or
is blank, and UCAC2, 2MASS, or other source is used, as specified in
the column 's' following the position.
I show V magnitudes for all the stars. For stars brighter than between
V = 14.5 and 15.0, the ASAS-3 is preferred. For the fainter stars this
is merely average of the GSC-2.3 blue and red magnitudes. Where there
is overlap, the naive b+r/2 from the Schmidt plates matches ASAS-3 to
within 0.1 mag usually, and only sometimes differs by as much as 0.3
mag.
Stars with motion >0".15/year are flagged 'lg pm'
(large proper motion).
In identifying the stars, I also found a substantial number of
common-motion pairs, which have all been sent to Brian Mason (USNO)
for possible inclusion in the WDS.
I noticed a few stars whose 2MASS J-K colors are >0.9mag; these must
be late-K/early-M giants --- interesting in themselves, since at Vmag
15 they are 10 kpc out in the halo. Those I noticed are flagged in
the remarks, but there could be more early/mid-K giants whose colors
are similar to the M0 dwarfs.
A bunch of SIMBAD aliases have sent to the CDS, mostly now fixed in
the database by Arnaud Siebert.
Though there are no spectral types here, the list will help deal with
the Pesch & Sanduleak objective-prism survey for M dwarfs at the south
galactic pole (1978AJ.....83.1090P, 1982PASP...94..345P), which needs
a similar going-over.