M33-013442.14 (J013442.14+303216.0)

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Target Notes

Classification: YSG

No blend concerns

Photometry Table

MJD	V	*	Image	B	*	Image	R	*	Images	I	*	Images
56140.37	17.34± 0.05	-		--	-	-	16.86± 0.08	-		--	-	-
56599.17	17.27± 0.05	-		17.99± 0.06	-		16.82± 0.05	-		--	-	-
56976.16	17.31± 0.04	-		18.11± 0.06	-		16.82± 0.05	-		--	-	-
57038.13	17.38± 0.04	-		18.10± 0.05	-		16.91± 0.04	-		--	-	-
57310.13	17.35± 0.06	-		18.14± 0.08	-		16.80± 0.05	-		--	-	-
57328.19	17.33± 0.05	-		18.05± 0.07	-		16.81± 0.07	-		--	-	-
57335.18	17.38± 0.06	-		--	-	-	16.83± 0.04	-		--	-	-
57401.10	17.38± 0.04	-		18.14± 0.06	-		--	-	-	--	-	-
57634.34	17.38± 0.04	-		18.19± 0.07	-		16.89± 0.05	-		16.43± 0.06	-
57687.13	17.23± 0.04	-		17.89± 0.06	-		16.72± 0.04	-		16.31± 0.06	-
57964.33	17.30± 0.05	-		18.05± 0.07	-		16.77± 0.05	-		16.31± 0.06	-
58045.18	17.36± 0.05	-		18.08± 0.08	-		16.82± 0.06	-		--	-	-
58073.20	17.27± 0.04	-		17.96± 0.07	-		--	-	-	--	-	-
58103.18	17.32± 0.05	T		--	-	-	--	-	-	--	-	-
58108.11	17.32± 0.05	-		18.03± 0.08	-		--	-	-	16.42± 0.07	-
58312.39	17.25± 0.05	-		17.97± 0.10	-		--	-	-	--	-	-
58317.37	17.28± 0.04	-		17.97± 0.07	-		16.80± 0.04	-		--	-	-
58341.34	17.27± 0.06	-		--	-	-	--	-	-	16.32± 0.07	-
58342.40	17.32± 0.05	-		17.92± 0.08	-		16.81± 0.05	-		--	-	-
58375.14	17.34± 0.05	-		--	-	-	16.80± 0.05	-		--	-	-
58420.10	17.29± 0.05	-		18.03± 0.07	-		--	-	-	16.27± 0.07	-
58433.00	17.27± 0.05	-		--	-	-	16.81± 0.05	-		16.43± 0.06	-
58672.39	17.31± 0.07	-		--	-	-	16.85± 0.05	-		16.30± 0.08	-
58695.36	17.29± 0.05	-		18.05± 0.06	-		16.80± 0.04	-		--	-	-
58784.12	17.42± 0.06	-		18.20± 0.06	-		--	-	-	--	-	-
58812.22	17.25± 0.05	-		--	-	-	--	-	-	16.31± 0.05	-
58902.07	17.31± 0.04	-		--	-	-	16.79± 0.04	-		--	-	-
59059.38	17.26± 0.05	-		17.99± 0.06	-		--	-	-	--	-	-
59081.26	17.21± 0.05	-		--	-	-	16.77± 0.05	-		--	-	-
59084.34	--	-	-	--	-	-	16.77± 0.04	T		--	-	-
59161.07	17.41± 0.05	-		18.20± 0.07	-		16.88± 0.04	-		--	-	-
59171.09	17.33± 0.05	-		--	-	-	--	-	-	16.35± 0.06	-
59227.08	17.33± 0.04	-		18.13± 0.04	-		16.82± 0.04	-		--	-	-
59415.36	17.39± 0.05	-		--	-	-	16.88± 0.04	-		--	-	-
59441.39	17.32± 0.05	-		18.08± 0.06	T		--	-	-	--	-	-
59463.30	17.18± 0.05	A		--	-	-	--	-	-	16.36± 0.05	-
59523.15	17.32± 0.04	-		--	-	-	16.82± 0.04	-		--	-	-
59525.15	17.28± 0.04	-		18.07± 0.05	-		--	-	-	--	-	-
59546.15	17.37± 0.04	-		--	-	-	--	-	-	16.43± 0.05	-
59551.11	17.34± 0.04	-		18.05± 0.06	-		--	-	-	--	-	-
59583.15	17.31± 0.04	-		--	-	-	16.78± 0.04	-		--	-	-
59608.07	17.25± 0.04	-		--	-	-	--	-	-	16.20± 0.05	-
59794.35	17.39± 0.04	T		--	-	-	--	-	-	--	-	-
59823.24	17.32± 0.04	-		18.15± 0.05	-		--	-	-	--	-	-
59851.13	17.26± 0.04	-		--	-	-	16.74± 0.04	-		--	-	-
59854.22	17.24± 0.04	-		18.00± 0.06	-		--	-	-	--	-	-
59879.12	17.24± 0.04	-		--	-	-	--	-	-	16.34± 0.06	A
59904.12	17.29± 0.04	-		18.11± 0.05	-		16.79± 0.04	-		16.34± 0.06	-
59932.13	17.27± 0.06	-		--	-	-	16.77± 0.05	-		--	-	-
60172.37	17.25± 0.04	-		17.99± 0.05	-		--	-	-	--	-	-
60205.15	17.30± 0.05	-		--	-	-	16.79± 0.05	-		--	-	-
60227.12	17.31± 0.05	-		--	-	-	--	-	-	16.26± 0.06	-
60262.13	17.30± 0.04	-		18.09± 0.05	-		16.77± 0.04	-		--	-	-
60290.15	17.30± 0.04	-		18.10± 0.05	-		--	-	-	16.39± 0.06	-
60292.18	17.35± 0.04	-		--	-	-	16.83± 0.05	-		--	-	-
60342.08	17.32± 0.04	-		--	-	-	16.83± 0.05	-		--	-	-
60504.38	17.28± 0.04	-		18.02± 0.06	-		16.77± 0.05	-		--	-	-
60529.36	17.26± 0.05	-		--	-	-	--	-	-	16.33± 0.06	-
60556.24	17.34± 0.04	-		18.13± 0.05	-		16.82± 0.04	-		--	-	-
60594.10	17.27± 0.06	-		--	-	-	--	-	-	16.27± 0.06	-
60612.14	17.30± 0.05	-		--	-	-	16.79± 0.06	-		--	-	-
60651.14	17.35± 0.04	-		18.15± 0.05	-		--	-	-	--	-	-

Plots of Brightness and Color

Variability

It is likely that this star is variable.

Correlation factors between bands

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 [0.24 mag]	B [0.31 mag]	R [0.19 mag]
B [0.31 mag]	0.64 (33)
R [0.19 mag]	0.64 (34)	0.41 (18)
I [0.23 mag]	0.17 (19)	0.29 (7)	0.32 (6)

Magnitude-Magnitude Plots

The plots below are provided to check the values in the table above and also to show any non-linear correlations

I & R Statistics

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)	1.01 | 1.25
R (I|R)	0.69 | 1.11	1.98 | 0.04
I (I|R)	0.53 | 0.96	0.69 | 1.27	0.65 | 1.09