[vsnet-chat 2376] Photometry file update

[bas@mailhost.lowell.edu (Brian Skiff)]

     I have recently been adding some new photometric data retrieved from the
literature to my large list of BVRI photometry of "faint" stars.  Most of the
additions have been to moderately-bright stars (10 < V < 14) in the southern
hemisphere, but some new data was found in all parts of the sky at both high
and low galactic latitudes, and in the Magellanic Clouds.  The file is
intended for use in calibrating sky survey plates and current digital data,
providing ready-made sequences for supernovae, variables, etc.
     A major change from the last time I made a general announcement about
the list (summer 1999) is that two large sets of very faint stars along the
Equator and near -30 Dec have been backed out of the list.  I made the mistake
of actually looking at the data closely (!) and found too many stars with
wildly inconsistent colors (errors of 0.5 mag. and more).  Despite the loss
of some 1500 stars from this source, the total number of stars has grown to
about 28,000 with a median V close to 14.0.
     All high-weight primary standard stars in the list are now marked with
an asterisk next to the V magnitude.  
     A few sample line are shown at the bottom of the message.  Some earlier
chit-chat about the list (now one year old), along with plots of the
distribution of the stars can be found at Michael Richmond's TASS Web site:

http://stupendous.rit.edu/tass/catalogs/catalogs.html#loneos

The complete files are at:

http://ftp.lowell.edu/pub/bas/starcats/loneos.phot        (1.9Mb uncompressed)
http://ftp.lowell.edu/pub/bas/starcats/loneos.phot.gz     (533Kb compressed)

...for flat ASCII and gzip-compressed versions.  The bibliographic reference
file has also been amended accordingly:

http://ftp.lowell.edu/pub/bas/starcats/loneos.ref         (88Kb)

A date given at the top of each file shows when it was last modified.

\Brian

==========================================

Name                  RA  (2000)  Dec    s     GSC       V    B-V   V-R   V-I
SA 68-B136          0 16 56.0  +15 52 57 A             17.91  0.41      
BPS CS 30339-15     0 16 58.0  -33 48 17 A  6993-0487g 15.28  0.40
S012-E              0 17 01.1  -80 06 40    9354-0716g 12.05  0.94
N38.2 10            0 17 01.2  -84 38 37 A  9494-0490g 14.13  1.07
FO_CAS              0 17 02.3  +60 48 38 h             17.09  0.93  0.59  1.06
S012-F              0 17 07.6  -80 10 10    9354-0251g 14.40  0.71
FO_CAS              0 17 09.5  +60 51 24 h             16.82  0.97  0.61  1.17
NGC 55 HG14         0 17 16.5  -39 01 40 G  7524-0055g 10.14  0.97
N38.2 8             0 17 16.8  -84 38 40 A  9494-0552g 11.46  0.70
N38.2 7             0 17 19.4  -84 38 21 A             15.94  0.99

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