Color composite thumbnail image of M33-013303.40M33-013303.40 (J013303.4+303051.5)


Target Notes

Color composite thumbnail image of M33-013303.40

Classification: YSG

No blend concerns.

Find In Simbad Query LGGS Massey (2016) at VizieR Query CAT WISE (Eisenhardt et al., 2020) at VizieR Query Gaia DR3 (2022) at VizieR LBT Spectra @UMN
Query M33 Variability Hartman et al. Survey (2006) at VizieR

Photometry Table

Download table (txt) Key to Flags in Table Key For Images Plot/Graph Variability
MJDV*ImageB*ImageR*ImagesI*Images
56140.40 17.35± 0.05-M33-013303.40 in filter V on MJD 56140.400
---- 16.92± 0.08-M33-013303.40 in filter R on MJD 56140.400
----
56599.22 17.55± 0.07-M33-013303.40 in filter V on MJD 56599.220
 18.32± 0.06-M33-013303.40 in filter B on MJD 56599.220
 17.09± 0.06-M33-013303.40 in filter R on MJD 56599.220
----
57035.14 17.48± 0.04-M33-013303.40 in filter V on MJD 57035.140
 18.34± 0.06-M33-013303.40 in filter B on MJD 57035.140
 17.05± 0.05-M33-013303.40 in filter R on MJD 57035.140
----
57310.16 17.38± 0.05-M33-013303.40 in filter V on MJD 57310.160
 18.09± 0.05-M33-013303.40 in filter B on MJD 57310.160
 16.93± 0.05-M33-013303.40 in filter R on MJD 57310.160
----
57328.16 17.40± 0.03-M33-013303.40 in filter V on MJD 57328.160
 18.15± 0.04-M33-013303.40 in filter B on MJD 57328.160
 16.95± 0.04-M33-013303.40 in filter R on MJD 57328.160
----
57406.10 17.32± 0.05-M33-013303.40 in filter V on MJD 57406.100
 17.90± 0.07-M33-013303.40 in filter B on MJD 57406.100
 16.88± 0.05-M33-013303.40 in filter R on MJD 57406.100
 16.44± 0.07-M33-013303.40 in filter I on MJD 57406.100
57634.41 17.11± 0.06-M33-013303.40 in filter V on MJD 57634.410
 17.77± 0.08-M33-013303.40 in filter B on MJD 57634.410
 16.72± 0.08-M33-013303.40 in filter R on MJD 57634.410
----
57638.40 17.27± 0.05AM33-013303.40 in filter V on MJD 57638.400
M33-013303.40 in filter V on MJD 57638.400
 17.93± 0.04-M33-013303.40 in filter B on MJD 57638.400
 16.85± 0.03-M33-013303.40 in filter R on MJD 57638.400
 16.48± 0.08AM33-013303.40 in filter I on MJD 57638.400
M33-013303.40 in filter I on MJD 57638.400
57964.40 17.39± 0.04-M33-013303.40 in filter V on MJD 57964.400
-------- 16.57± 0.07AM33-013303.40 in filter I on MJD 57964.400
M33-013303.40 in filter I on MJD 57964.400
57988.43 17.21± 0.06TM33-013303.40 in filter V on MJD 57988.430
------------
58043.13 17.33± 0.04-M33-013303.40 in filter V on MJD 58043.130
 18.06± 0.04-M33-013303.40 in filter B on MJD 58043.130
 16.77± 0.07-M33-013303.40 in filter R on MJD 58043.130
----
58073.22 17.43± 0.05-M33-013303.40 in filter V on MJD 58073.220
 18.33± 0.05-M33-013303.40 in filter B on MJD 58073.220
--------
58108.13 17.46± 0.05AM33-013303.40 in filter V on MJD 58108.130
M33-013303.40 in filter V on MJD 58108.130
 18.24± 0.05AM33-013303.40 in filter B on MJD 58108.130
M33-013303.40 in filter B on MJD 58108.130
---- 16.57± 0.08AM33-013303.40 in filter I on MJD 58108.130
M33-013303.40 in filter I on MJD 58108.130
58316.35 17.39± 0.04-M33-013303.40 in filter V on MJD 58316.350
 18.17± 0.04-M33-013303.40 in filter B on MJD 58316.350
--------
58339.40 17.36± 0.05-M33-013303.40 in filter V on MJD 58339.400
 18.16± 0.07-M33-013303.40 in filter B on MJD 58339.400
 16.88± 0.06-M33-013303.40 in filter R on MJD 58339.400
----
58341.37 17.46± 0.04-M33-013303.40 in filter V on MJD 58341.370
-------- 16.54± 0.08-M33-013303.40 in filter I on MJD 58341.370
58373.15 17.43± 0.06-M33-013303.40 in filter V on MJD 58373.150
 18.29± 0.08-M33-013303.40 in filter B on MJD 58373.150
--------
58375.16 17.34± 0.05-M33-013303.40 in filter V on MJD 58375.160
-------- 16.47± 0.09-M33-013303.40 in filter I on MJD 58375.160
58433.02 17.38± 0.05-M33-013303.40 in filter V on MJD 58433.020
---- 16.94± 0.05-M33-013303.40 in filter R on MJD 58433.020
 16.68± 0.10-M33-013303.40 in filter I on MJD 58433.020
58673.38 17.27± 0.03-M33-013303.40 in filter V on MJD 58673.380
 18.02± 0.04-M33-013303.40 in filter B on MJD 58673.380
--------
58695.39 17.28± 0.05-M33-013303.40 in filter V on MJD 58695.390
---- 16.85± 0.04-M33-013303.40 in filter R on MJD 58695.390
----
58750.20 17.36± 0.04AM33-013303.40 in filter V on MJD 58750.200
M33-013303.40 in filter V on MJD 58750.200
 18.16± 0.03-M33-013303.40 in filter B on MJD 58750.200
 16.90± 0.05-M33-013303.40 in filter R on MJD 58750.200
 16.58± 0.08-M33-013303.40 in filter I on MJD 58750.200
58757.17 17.37± 0.05-M33-013303.40 in filter V on MJD 58757.170
---- 16.94± 0.05-M33-013303.40 in filter R on MJD 58757.170
----
58779.18 17.41± 0.04-M33-013303.40 in filter V on MJD 58779.180
 18.12± 0.04-M33-013303.40 in filter B on MJD 58779.180
--------
58784.14 17.43± 0.04-M33-013303.40 in filter V on MJD 58784.140
---- 16.98± 0.04-M33-013303.40 in filter R on MJD 58784.140
----
58812.20 17.34± 0.06-M33-013303.40 in filter V on MJD 58812.200
---- 16.90± 0.06-M33-013303.40 in filter R on MJD 58812.200
----
59059.40 17.55± 0.06-M33-013303.40 in filter V on MJD 59059.400
---- 17.05± 0.05-M33-013303.40 in filter R on MJD 59059.400
 16.66± 0.08-M33-013303.40 in filter I on MJD 59059.400
59081.34 17.32± 0.05AM33-013303.40 in filter V on MJD 59081.340
M33-013303.40 in filter V on MJD 59081.340
 18.03± 0.05AM33-013303.40 in filter B on MJD 59081.340
M33-013303.40 in filter B on MJD 59081.340
 16.89± 0.05AM33-013303.40 in filter R on MJD 59081.340
M33-013303.40 in filter R on MJD 59081.340
 16.50± 0.07-M33-013303.40 in filter I on MJD 59081.340
59082.38 17.34± 0.05-M33-013303.40 in filter V on MJD 59082.380
 18.06± 0.03-M33-013303.40 in filter B on MJD 59082.380
M33-013303.40 in filter B on MJD 59082.380
M33-013303.40 in filter B on MJD 59082.380
 16.88± 0.04-M33-013303.40 in filter R on MJD 59082.380
M33-013303.40 in filter R on MJD 59082.380
M33-013303.40 in filter R on MJD 59082.380
----
59084.25-------- 16.88± 0.04TM33-013303.40 in filter R on MJD 59084.250
----
59161.14 17.43± 0.04-M33-013303.40 in filter V on MJD 59161.140
---- 16.98± 0.04-M33-013303.40 in filter R on MJD 59161.140
 16.59± 0.09-M33-013303.40 in filter I on MJD 59161.140
59171.15 17.39± 0.05AM33-013303.40 in filter V on MJD 59171.150
M33-013303.40 in filter V on MJD 59171.150
 18.11± 0.07AM33-013303.40 in filter B on MJD 59171.150
M33-013303.40 in filter B on MJD 59171.150
 16.95± 0.05-M33-013303.40 in filter R on MJD 59171.150
 16.57± 0.07AM33-013303.40 in filter I on MJD 59171.150
M33-013303.40 in filter I on MJD 59171.150
59227.14 17.34± 0.05AM33-013303.40 in filter V on MJD 59227.140
M33-013303.40 in filter V on MJD 59227.140
 18.06± 0.05AM33-013303.40 in filter B on MJD 59227.140
M33-013303.40 in filter B on MJD 59227.140
 16.91± 0.05AM33-013303.40 in filter R on MJD 59227.140
M33-013303.40 in filter R on MJD 59227.140
 16.46± 0.07-M33-013303.40 in filter I on MJD 59227.140
59415.39 17.46± 0.06TM33-013303.40 in filter V on MJD 59415.390
------------
59441.42 17.40± 0.06TM33-013303.40 in filter V on MJD 59441.420
------------
59442.41 17.44± 0.05-M33-013303.40 in filter V on MJD 59442.410
---- 16.94± 0.04-M33-013303.40 in filter R on MJD 59442.410
----
59463.33 17.37± 0.05AM33-013303.40 in filter V on MJD 59463.330
M33-013303.40 in filter V on MJD 59463.330
 18.09± 0.06AM33-013303.40 in filter B on MJD 59463.330
M33-013303.40 in filter B on MJD 59463.330
---- 16.54± 0.07-M33-013303.40 in filter I on MJD 59463.330
59522.13 17.46± 0.05-M33-013303.40 in filter V on MJD 59522.130
---- 16.97± 0.05-M33-013303.40 in filter R on MJD 59522.130
 16.55± 0.08-M33-013303.40 in filter I on MJD 59522.130
59525.12 17.46± 0.05-M33-013303.40 in filter V on MJD 59525.120
---- 17.00± 0.04-M33-013303.40 in filter R on MJD 59525.120
----
59546.20 17.44± 0.05AM33-013303.40 in filter V on MJD 59546.200
M33-013303.40 in filter V on MJD 59546.200
 18.24± 0.03-M33-013303.40 in filter B on MJD 59546.200
---- 16.56± 0.07-M33-013303.40 in filter I on MJD 59546.200
59551.14 17.46± 0.06AM33-013303.40 in filter V on MJD 59551.140
M33-013303.40 in filter V on MJD 59551.140
-------- 16.66± 0.08-M33-013303.40 in filter I on MJD 59551.140
59583.20 17.43± 0.04-M33-013303.40 in filter V on MJD 59583.200
---- 16.95± 0.05-M33-013303.40 in filter R on MJD 59583.200
----
59608.14 17.33± 0.05-M33-013303.40 in filter V on MJD 59608.140
 18.01± 0.08-M33-013303.40 in filter B on MJD 59608.140
 16.94± 0.05-M33-013303.40 in filter R on MJD 59608.140
----
59794.38 17.31± 0.05-M33-013303.40 in filter V on MJD 59794.380
---- 16.87± 0.04-M33-013303.40 in filter R on MJD 59794.380
----
59849.19 17.36± 0.05AM33-013303.40 in filter V on MJD 59849.190
M33-013303.40 in filter V on MJD 59849.190
 18.14± 0.04-M33-013303.40 in filter B on MJD 59849.190
 16.90± 0.05-M33-013303.40 in filter R on MJD 59849.190
----
59851.19 17.36± 0.05-M33-013303.40 in filter V on MJD 59851.190
 18.09± 0.04-M33-013303.40 in filter B on MJD 59851.190
---- 16.46± 0.09-M33-013303.40 in filter I on MJD 59851.190
59854.19 17.41± 0.04-M33-013303.40 in filter V on MJD 59854.190
---- 17.00± 0.04-M33-013303.40 in filter R on MJD 59854.190
 16.62± 0.08-M33-013303.40 in filter I on MJD 59854.190
59879.18 17.52± 0.04-M33-013303.40 in filter V on MJD 59879.180
 18.22± 0.05-M33-013303.40 in filter B on MJD 59879.180
 17.06± 0.06-M33-013303.40 in filter R on MJD 59879.180
----
59903.26 17.48± 0.04-M33-013303.40 in filter V on MJD 59903.260
 18.21± 0.05-M33-013303.40 in filter B on MJD 59903.260
 16.98± 0.05-M33-013303.40 in filter R on MJD 59903.260
 16.55± 0.08-M33-013303.40 in filter I on MJD 59903.260
59904.15 17.51± 0.04-M33-013303.40 in filter V on MJD 59904.150
 18.35± 0.03-M33-013303.40 in filter B on MJD 59904.150
M33-013303.40 in filter B on MJD 59904.150
 17.04± 0.04-M33-013303.40 in filter R on MJD 59904.150
M33-013303.40 in filter R on MJD 59904.150
 16.71± 0.08-M33-013303.40 in filter I on MJD 59904.150
M33-013303.40 in filter I on MJD 59904.150
59932.20 17.39± 0.06AM33-013303.40 in filter V on MJD 59932.200
M33-013303.40 in filter V on MJD 59932.200
 18.17± 0.04-M33-013303.40 in filter B on MJD 59932.200
 16.84± 0.05-M33-013303.40 in filter R on MJD 59932.200
----
60172.40 17.18± 0.06-M33-013303.40 in filter V on MJD 60172.400
 17.84± 0.03-M33-013303.40 in filter B on MJD 60172.400
--------
60205.19 17.28± 0.05-M33-013303.40 in filter V on MJD 60205.190
 17.96± 0.05-M33-013303.40 in filter B on MJD 60205.190
--------
60227.15 17.45± 0.04-M33-013303.40 in filter V on MJD 60227.150
---- 16.98± 0.06-M33-013303.40 in filter R on MJD 60227.150
----
60261.16 17.46± 0.05AM33-013303.40 in filter V on MJD 60261.160
M33-013303.40 in filter V on MJD 60261.160
---- 16.95± 0.05-M33-013303.40 in filter R on MJD 60261.160
 16.58± 0.08AM33-013303.40 in filter I on MJD 60261.160
M33-013303.40 in filter I on MJD 60261.160
60262.18 17.50± 0.05-M33-013303.40 in filter V on MJD 60262.180
 18.25± 0.04-M33-013303.40 in filter B on MJD 60262.180
 17.02± 0.05-M33-013303.40 in filter R on MJD 60262.180
M33-013303.40 in filter R on MJD 60262.180
----
60290.22 17.37± 0.05AM33-013303.40 in filter V on MJD 60290.220
M33-013303.40 in filter V on MJD 60290.220
 18.07± 0.04AM33-013303.40 in filter B on MJD 60290.220
M33-013303.40 in filter B on MJD 60290.220
 16.95± 0.06-M33-013303.40 in filter R on MJD 60290.220
 16.50± 0.09-M33-013303.40 in filter I on MJD 60290.220
60292.23 17.36± 0.06AM33-013303.40 in filter V on MJD 60292.230
M33-013303.40 in filter V on MJD 60292.230
---- 16.89± 0.05-M33-013303.40 in filter R on MJD 60292.230
 16.63± 0.09-M33-013303.40 in filter I on MJD 60292.230
60342.13 17.36± 0.06-M33-013303.40 in filter V on MJD 60342.130
---- 16.94± 0.05-M33-013303.40 in filter R on MJD 60342.130
----
60506.34 17.30± 0.05-M33-013303.40 in filter V on MJD 60506.340
---- 16.88± 0.05-M33-013303.40 in filter R on MJD 60506.340
----
60529.40 17.28± 0.05-M33-013303.40 in filter V on MJD 60529.400
 17.97± 0.07-M33-013303.40 in filter B on MJD 60529.400
 16.86± 0.05-M33-013303.40 in filter R on MJD 60529.400
----
60533.41 17.29± 0.06-M33-013303.40 in filter V on MJD 60533.410
 17.98± 0.04-M33-013303.40 in filter B on MJD 60533.410
---- 16.48± 0.08-M33-013303.40 in filter I on MJD 60533.410
60556.31 17.42± 0.05-M33-013303.40 in filter V on MJD 60556.310
-------- 16.55± 0.08-M33-013303.40 in filter I on MJD 60556.310
60562.27 17.41± 0.05-M33-013303.40 in filter V on MJD 60562.270
 18.21± 0.04-M33-013303.40 in filter B on MJD 60562.270
---- 16.62± 0.08-M33-013303.40 in filter I on MJD 60562.270
60592.13 17.43± 0.05AM33-013303.40 in filter V on MJD 60592.130
M33-013303.40 in filter V on MJD 60592.130
 18.24± 0.06AM33-013303.40 in filter B on MJD 60592.130
M33-013303.40 in filter B on MJD 60592.130
 16.98± 0.05AM33-013303.40 in filter R on MJD 60592.130
M33-013303.40 in filter R on MJD 60592.130
----
60612.17 17.33± 0.05-M33-013303.40 in filter V on MJD 60612.170
-------- 16.50± 0.07-M33-013303.40 in filter I on MJD 60612.170
60651.20 17.37± 0.06AM33-013303.40 in filter V on MJD 60651.200
M33-013303.40 in filter V on MJD 60651.200
 18.13± 0.03-M33-013303.40 in filter B on MJD 60651.200
 16.85± 0.05-M33-013303.40 in filter R on MJD 60651.200
----
Download table (txt) Key to Flags in Table Key For Images Plot/Graph Variability

Plots of Brightness and Color

Key for Plot Variability Photometry Table Target Notes

Plot of photometry for M33-013303.40Plot of color for M33-013303.40

Key for Plot Variability Photometry Table Target Notes

Variability

Plot/Graph Photometry Table Target Notes

It is very 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 [0.44 mag]B [0.58 mag]R [0.37 mag]
B [0.58 mag]0.86 (38)
R [0.37 mag]0.80 (44)0.63 (25)
I [0.28 mag]0.44 (28)0.74 (15)0.45 (16)

Magnitude-Magnitude Plots

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

Plot to assess correlation between bands for M33-013303.40

Plot to assess correlation between bands for M33-013303.40

Plot/Graph Photometry Table Target Notes

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)		4.71 | 1.64
R
(I|R)		2.09 | 1.137.32 | 0.08
I
(I|R)		0.84 | 1.622.36 | 3.290.92 | 1.29

Back to catalog index

By John C. Martin, University of Illinois Springfield Henry R. Barber Research Observatory

Generated on 2025-08-04 15:53:14 UT-5