Not resolved from J004526.58+415005.8 less than one arcsecond N. According to LGGS the unresolved neighbor has odd colors with comparable brightness in BRI but contributes -0.04 mag in V.
MJD | V | * | Image | B | * | Image | R | * | Images | I | * | Images |
---|---|---|---|---|---|---|---|---|---|---|---|---|
56537.24 | 16.34± 0.05 | b | -- | - | - | 15.99± 0.06 | B | -- | - | - | ||
56593.10 | 16.32± 0.03 | b | -- | - | - | 16.00± 0.04 | B | -- | - | - | ||
56951.07 | 16.62± 0.05 | b | 16.86± 0.04 | B | 16.17± 0.06 | B | -- | - | - | |||
56982.20 | 16.51± 0.05 | b | 16.88± 0.05 | B | -- | - | - | -- | - | - | ||
57036.13 | 16.47± 0.06 | b | 16.83± 0.04 | B | -- | - | - | -- | - | - | ||
57309.14 | 16.41± 0.05 | b | 16.75± 0.03 | B | 16.05± 0.06 | B | -- | - | - | |||
57340.21 | 16.47± 0.03 | b | -- | - | - | -- | - | - | 15.86± 0.07 | B | ||
57633.35 | 16.74± 0.05 | b | 17.06± 0.05 | B | 16.38± 0.05 | B | -- | - | - | |||
57638.29 | 16.78± 0.04 | b | -- | - | - | -- | - | - | 16.19± 0.05 | B | ||
57958.32 | 17.51± 0.07 | b | 17.77± 0.07 | B | -- | - | - | 17.04± 0.07 | B | |||
57963.28 | 17.54± 0.06 | b | 17.89± 0.08 | B | 17.17± 0.06 | B | -- | - | - | |||
58045.07 | 17.48± 0.05 | b | 17.83± 0.07 | B | 17.14± 0.06 | B | -- | - | - | |||
58067.12 | 17.52± 0.09 | b | -- | - | - | -- | - | - | 17.01± 0.07 | B | ||
58098.12 | 17.56± 0.07 | b | 17.80± 0.06 | B | -- | - | - | -- | - | - | ||
58312.32 | 17.51± 0.05 | b | 17.76± 0.05 | B | 17.18± 0.06 | B | -- | - | - | |||
58316.28 | 17.49± 0.04 | b | -- | - | - | -- | - | - | 16.98± 0.06 | B | ||
58341.25 | 17.61± 0.06 | b | 17.92± 0.08 | B | -- | - | - | -- | - | - | ||
58366.14 | 17.51± 0.05 | b | 17.71± 0.04 | B | -- | - | - | -- | - | - | ||
58372.12 | 17.49± 0.09 | b | -- | - | - | -- | - | - | 17.07± 0.06 | B | ||
58403.12 | 17.45± 0.04 | b | -- | - | - | 17.22± 0.06 | B | -- | - | - | ||
58420.03 | 17.40± 0.05 | b | 17.72± 0.07 | B | -- | - | - | -- | - | - | ||
58436.02 | 17.45± 0.06 | b | 17.55± 0.04 | B | 17.24± 0.06 | B | -- | - | - | |||
58671.30 | 17.11± 0.04 | b | 17.39± 0.05 | B | -- | - | - | -- | - | - | ||
58672.32 | 16.96± 0.05 | b | -- | - | - | 16.59± 0.05 | B | 16.39± 0.07 | B | |||
58695.30 | 16.93± 0.05 | Ab | 17.21± 0.05 | B | 16.65± 0.04 | B | 16.46± 0.05 | B | ||||
58696.28 | 16.94± 0.04 | b | -- | - | - | 16.65± 0.05 | B | 16.41± 0.06 | B | |||
58757.08 | 16.91± 0.04 | b | -- | - | - | 16.57± 0.04 | B | -- | - | - | ||
58784.04 | 16.91± 0.04 | b | 17.18± 0.04 | B | -- | - | - | -- | - | - | ||
58812.10 | 16.92± 0.03 | b | -- | - | - | 16.60± 0.05 | B | -- | - | - | ||
58836.18 | 16.86± 0.03 | b | -- | - | - | -- | - | - | 16.30± 0.04 | B | ||
59001.39 | 16.94± 0.05 | b | -- | - | - | 16.50± 0.04 | B | -- | - | - | ||
59059.31 | 16.97± 0.03 | b | 17.25± 0.04 | B | 16.65± 0.04 | B | -- | - | - | |||
59077.22 | 16.96± 0.06 | b | -- | - | - | 16.61± 0.05 | B | -- | - | - | ||
59081.22 | 16.89± 0.04 | b | -- | - | - | -- | - | - | 16.35± 0.05 | B | ||
59131.05 | 16.88± 0.04 | b | 17.21± 0.06 | B | -- | - | - | -- | - | - | ||
59136.11 | 16.82± 0.03 | b | 17.19± 0.10 | B | 16.50± 0.03 | B | -- | - | - | |||
59166.07 | 16.79± 0.03 | b | -- | - | - | -- | - | - | 16.23± 0.06 | B | ||
59166.25 | 16.82± 0.03 | b | -- | - | - | -- | - | - | 16.24± 0.05 | B | ||
59376.36 | 16.83± 0.05 | b | 17.17± 0.06 | B | -- | - | - | -- | - | - | ||
59380.36 | 16.70± 0.03 | b | -- | - | - | 16.41± 0.04 | B | -- | - | - | ||
59409.38 | 16.64± 0.04 | b | -- | - | - | 16.31± 0.04 | B | -- | - | - | ||
59415.34 | 16.63± 0.04 | b | 16.95± 0.04 | B | -- | - | - | -- | - | - | ||
59442.30 | 16.55± 0.04 | Ab | 16.90± 0.04 | B | 16.20± 0.04 | B | 15.91± 0.05 | AB | ||||
59467.14 | 16.53± 0.04 | b | -- | - | - | 16.19± 0.04 | B | -- | - | - | ||
59485.12 | 16.50± 0.03 | b | 16.95± 0.10 | B | -- | - | - | -- | - | - | ||
59522.07 | 16.52± 0.04 | b | 16.92± 0.04 | B | -- | - | - | -- | - | - | ||
59525.06 | 16.48± 0.03 | b | -- | - | - | -- | - | - | 15.84± 0.05 | B | ||
59546.07 | 16.56± 0.03 | b | -- | - | - | -- | - | - | 15.90± 0.05 | B | ||
59551.04 | 16.53± 0.03 | b | 16.93± 0.03 | B | 16.19± 0.04 | B | -- | - | - | |||
59583.07 | 16.61± 0.04 | b | -- | - | - | 16.26± 0.05 | B | -- | - | - | ||
59753.35 | 16.66± 0.08 | Ab | 16.90± 0.07 | B | 16.29± 0.08 | B | -- | - | - | |||
59816.21 | 16.51± 0.03 | Tb | -- | - | - | -- | - | - | -- | - | - | |
59823.21 | 16.57± 0.04 | b | -- | - | - | 16.23± 0.04 | B | -- | - | - | ||
59848.13 | 16.60± 0.03 | b | -- | - | - | -- | - | - | 16.01± 0.05 | B | ||
59851.07 | 16.72± 0.09 | b | -- | - | - | 16.30± 0.05 | B | 16.01± 0.07 | B | |||
59879.07 | 16.69± 0.04 | b | 16.98± 0.04 | B | -- | - | - | -- | - | - | ||
59903.15 | 16.86± 0.03 | b | 17.16± 0.04 | B | 16.49± 0.03 | B | -- | - | - | |||
59905.22 | 16.88± 0.04 | b | 17.21± 0.06 | B | -- | - | - | 16.24± 0.06 | B |
If the brightness variation is true variability then there should be a correlation between brightness changes recorded in different filter bands. The following table are the R-squared linear correlation factors calculated for the pairs of bands. The number in parentheses next to the R-squared value is the number of elements used to calculate the correlation factor. The number in square brackets next to the band is the range of magnitudes measured.
V [1.18 mag] | B [1.29 mag] | R [1.25 mag] | |
---|---|---|---|
B [1.18 mag] | 0.98 (30) | ||
R [1.25 mag] | 0.98 (29) | 0.94 (14) | |
I [1.23 mag] | 0.99 (19) | 0.96 (4) | 0.99 (5) |
The plots below are provided to check the values in the table above and also to show any non-linear correlations
Welch & Stetson (1993, AJ, 105, 1813) present a method for varible star detection in CCD images from automated surveys. Data from two bands are compared and two statistics are calculated: R and I.
The I-statistic has an expectation value of zero for stars that are NOT variable. A larger non-zero I-value indicates a higher likelihood that the star is variable. The R statistic indicates how the color of the star changes as the variable grows brighter with R = 1.0 being no change in color.
R and I values have only been calculated if there are more than four (4) matched measurements of brightness in each band.
V (I|R) | B (I|R) | R (I|R) | |
---|---|---|---|
B (I|R) | 54.19 | 0.86 | ||
R (I|R) | 51.38 | 1.11 | 45.01 | 0.48 | |
I (I|R) | 41.79 | 1.06 | --- | --- | 20.08 | 1.15 |
By John C. Martin, University of Illinois Springfield Henry R. Barber Research Observatory
Generated on 2023-08-14 14:15:12 UT-5