260  V1413 AQUILAE   (ZAND+E)   Range: 10.6-15.1V 
     Position:   19 03 46.84 +16 26 17.6   (J2000, from .dat file)
     Magnitude:  V=13.093  B-V=0.962       (.dat file, single night)

ID     RA  (2000)   DEC       X    Y   N    V      ERR     B-V    ERR

a) Comparison star sequence

1    19 03 51.7  +16 28 32    70  134  3  10.976  0.008   0.723  0.146   
2    19 03 49.9  +16 30 55    44  277  3  11.687  0.010   1.324  0.008   
3    19 03 23.2  +16 29 12  -340  174  3  12.595  0.000   0.705  0.008   
4    19 03 23.5  +16 30 40  -335  262  3  12.792  0.005   0.517  0.008   
5    19 03 47.1  +16 26 29     5   11  3  13.134  0.005   0.804  0.002   
6    19 03 36.7  +16 24 05  -145 -133  3  13.622  0.009   1.436  0.006   
7    19 03 53.8  +16 27 55   101   97  3  13.918  0.012   0.706  0.010   
8    19 03 33.5  +16 30 48  -192  270  3  14.289  0.005   0.720  0.007   
9    19 03 43.7  +16 29 03   -45  165  3  14.614  0.009   0.988  0.015   
10   19 03 45.3  +16 26 46   -22   28  3  14.869  0.005   0.821  0.013   
11   19 03 34.4  +16 23 58  -179 -141  3  15.184  0.011   0.825  0.006   
12   19 03 54.4  +16 23 18   109 -180  2  15.473  0.010   1.033  0.008   
13   19 03 49.7  +16 27 38    41   80  3  15.880  0.011   0.975  0.018   


b) Wide-colour extension for CCD calibration

     19 03 46.9  +16 22 47     1 -211  3  12.493  0.016   2.092  0.016   
     19 03 33.4  +16 31 20  -193  302  3  12.943  0.026   2.116  0.012   


Notes:

1. There is a bright star at 19h 04m 01.9s +16d 27' 48" with a reliable
Tycho-2 magnitude of 6.95+/-0.01.

2. A magnitude V=11.9 star at 19h 03m 46.0s +16d 29' 52" was discovered
during the Hipparcos mission to be a previously unknown variable star. 
It has now been designated as NSV 24674, magnitude 11.9V, range, period 
and type unknown. During the determination of this sequence it was 
measured at V=12.259+/-0.056 and B-V=1.919+/-0.012 (three night average),
confirming that it is indeed at least a small amplitude variable.


Bruce Sumner
17 February 2002