Color composite thumbnail image of M33-013303.60M33-013303.60 (J013303.6+302903.4)



Target Notes

Color composite thumbnail image of M33-013303.60

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 EDR3 (2020) 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 17.23± 0.05-M33-013303.60 in filter V on MJD  56140.400
---- 16.71± 0.07-M33-013303.60 in filter R on MJD  56140.400
----
56599.22 17.24± 0.06-M33-013303.60 in filter V on MJD  56599.220
18.16± 0.05-M33-013303.60 in filter B on MJD  56599.220
16.70± 0.05-M33-013303.60 in filter R on MJD  56599.220
----
57035.14 17.27± 0.04-M33-013303.60 in filter V on MJD  57035.140
18.21± 0.06-M33-013303.60 in filter B on MJD  57035.140
16.75± 0.04-M33-013303.60 in filter R on MJD  57035.140
----
57310.16 17.30± 0.05-M33-013303.60 in filter V on MJD  57310.160
18.18± 0.06-M33-013303.60 in filter B on MJD  57310.160
16.79± 0.05-M33-013303.60 in filter R on MJD  57310.160
----
57406.10 17.09± 0.05-M33-013303.60 in filter V on MJD  57406.100
17.90± 0.07-M33-013303.60 in filter B on MJD  57406.100
16.64± 0.04-M33-013303.60 in filter R on MJD  57406.100
16.26± 0.07-M33-013303.60 in filter I on MJD  57406.100
57634.41 17.12± 0.07-M33-013303.60 in filter V on MJD  57634.410
17.99± 0.08-M33-013303.60 in filter B on MJD  57634.410
16.65± 0.07-M33-013303.60 in filter R on MJD  57634.410
----
57638.40 17.22± 0.05AM33-013303.60 in filter V on MJD  57638.400
M33-013303.60 in filter V on MJD  57638.400
18.10± 0.04-M33-013303.60 in filter B on MJD  57638.400
16.73± 0.03-M33-013303.60 in filter R on MJD  57638.400
16.27± 0.08AM33-013303.60 in filter I on MJD  57638.400
M33-013303.60 in filter I on MJD  57638.400
57988.43 17.14± 0.06TM33-013303.60 in filter V on MJD  57988.430
------------
58043.15 17.14± 0.04AM33-013303.60 in filter V on MJD  58043.150
M33-013303.60 in filter V on MJD  58043.150
18.06± 0.05AM33-013303.60 in filter B on MJD  58043.150
M33-013303.60 in filter B on MJD  58043.150
16.64± 0.05AM33-013303.60 in filter R on MJD  58043.150
M33-013303.60 in filter R on MJD  58043.150
16.18± 0.09-M33-013303.60 in filter I on MJD  58043.150
58073.22 17.17± 0.05-M33-013303.60 in filter V on MJD  58073.220
18.16± 0.06-M33-013303.60 in filter B on MJD  58073.220
--------
58108.13 17.19± 0.04AM33-013303.60 in filter V on MJD  58108.130
M33-013303.60 in filter V on MJD  58108.130
18.09± 0.05AM33-013303.60 in filter B on MJD  58108.130
M33-013303.60 in filter B on MJD  58108.130
---- 16.20± 0.08AM33-013303.60 in filter I on MJD  58108.130
M33-013303.60 in filter I on MJD  58108.130
58316.35 17.21± 0.06-M33-013303.60 in filter V on MJD  58316.350
18.13± 0.04-M33-013303.60 in filter B on MJD  58316.350
--------
58339.40 17.17± 0.05-M33-013303.60 in filter V on MJD  58339.400
18.00± 0.06-M33-013303.60 in filter B on MJD  58339.400
16.67± 0.06-M33-013303.60 in filter R on MJD  58339.400
----
58373.15 17.24± 0.06-M33-013303.60 in filter V on MJD  58373.150
18.16± 0.07-M33-013303.60 in filter B on MJD  58373.150
--------
58375.16 17.15± 0.05-M33-013303.60 in filter V on MJD  58375.160
-------- 16.24± 0.09-M33-013303.60 in filter I on MJD  58375.160
58433.02 17.18± 0.04-M33-013303.60 in filter V on MJD  58433.020
---- 16.67± 0.05-M33-013303.60 in filter R on MJD  58433.020
16.19± 0.08-M33-013303.60 in filter I on MJD  58433.020
58673.38 17.15± 0.03-M33-013303.60 in filter V on MJD  58673.380
18.12± 0.04-M33-013303.60 in filter B on MJD  58673.380
--------
58695.39 17.24± 0.04-M33-013303.60 in filter V on MJD  58695.390
---- 16.73± 0.04-M33-013303.60 in filter R on MJD  58695.390
----
58696.41 17.23± 0.05-M33-013303.60 in filter V on MJD  58696.410
18.15± 0.08-M33-013303.60 in filter B on MJD  58696.410
16.70± 0.07-M33-013303.60 in filter R on MJD  58696.410
M33-013303.60 in filter R on MJD  58696.410
----
58750.20 17.16± 0.04AM33-013303.60 in filter V on MJD  58750.200
M33-013303.60 in filter V on MJD  58750.200
18.10± 0.03-M33-013303.60 in filter B on MJD  58750.200
16.63± 0.05-M33-013303.60 in filter R on MJD  58750.200
16.29± 0.08-M33-013303.60 in filter I on MJD  58750.200
58757.17 17.16± 0.05-M33-013303.60 in filter V on MJD  58757.170
---- 16.66± 0.05-M33-013303.60 in filter R on MJD  58757.170
----
58779.18 17.12± 0.04-M33-013303.60 in filter V on MJD  58779.180
17.98± 0.04-M33-013303.60 in filter B on MJD  58779.180
--------
58784.14 17.16± 0.04AM33-013303.60 in filter V on MJD  58784.140
M33-013303.60 in filter V on MJD  58784.140
---- 16.66± 0.04-M33-013303.60 in filter R on MJD  58784.140
16.17± 0.07-M33-013303.60 in filter I on MJD  58784.140
58812.20 17.06± 0.06-M33-013303.60 in filter V on MJD  58812.200
---- 16.60± 0.06-M33-013303.60 in filter R on MJD  58812.200
----
59059.40 17.06± 0.06-M33-013303.60 in filter V on MJD  59059.400
---- 16.60± 0.05-M33-013303.60 in filter R on MJD  59059.400
16.17± 0.08-M33-013303.60 in filter I on MJD  59059.400
59081.34 17.07± 0.05AM33-013303.60 in filter V on MJD  59081.340
M33-013303.60 in filter V on MJD  59081.340
17.90± 0.05AM33-013303.60 in filter B on MJD  59081.340
M33-013303.60 in filter B on MJD  59081.340
16.58± 0.05AM33-013303.60 in filter R on MJD  59081.340
M33-013303.60 in filter R on MJD  59081.340
16.13± 0.07-M33-013303.60 in filter I on MJD  59081.340
59082.38 17.10± 0.05-M33-013303.60 in filter V on MJD  59082.380
17.91± 0.03-M33-013303.60 in filter B on MJD  59082.380
M33-013303.60 in filter B on MJD  59082.380
M33-013303.60 in filter B on MJD  59082.380
16.61± 0.04-M33-013303.60 in filter R on MJD  59082.380
M33-013303.60 in filter R on MJD  59082.380
M33-013303.60 in filter R on MJD  59082.380
----
59084.25-------- 16.60± 0.04TM33-013303.60 in filter R on MJD  59084.250
----
59161.14 17.15± 0.04-M33-013303.60 in filter V on MJD  59161.140
---- 16.67± 0.04-M33-013303.60 in filter R on MJD  59161.140
16.26± 0.09-M33-013303.60 in filter I on MJD  59161.140
59171.15 17.12± 0.05AM33-013303.60 in filter V on MJD  59171.150
M33-013303.60 in filter V on MJD  59171.150
17.97± 0.07AM33-013303.60 in filter B on MJD  59171.150
M33-013303.60 in filter B on MJD  59171.150
16.61± 0.05-M33-013303.60 in filter R on MJD  59171.150
16.19± 0.07AM33-013303.60 in filter I on MJD  59171.150
M33-013303.60 in filter I on MJD  59171.150
59227.14 17.19± 0.05AM33-013303.60 in filter V on MJD  59227.140
M33-013303.60 in filter V on MJD  59227.140
18.07± 0.05AM33-013303.60 in filter B on MJD  59227.140
M33-013303.60 in filter B on MJD  59227.140
16.68± 0.04AM33-013303.60 in filter R on MJD  59227.140
M33-013303.60 in filter R on MJD  59227.140
16.18± 0.07-M33-013303.60 in filter I on MJD  59227.140
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 M33-013303.60Plot of color for M33-013303.60

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 [0.31 mag]B [0.24 mag]R [0.21 mag]
B [0.31 mag]0.80 (20)
R [0.21 mag]0.90 (22)0.68 (14)
I [0.16 mag]0.16 (13)0.13 (8)0.26 (11)

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 M33-013303.60

Plot to assess correlation between bands for M33-013303.60

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)
2.13 | 1.62
R
(I|R)
1.46 | 1.24-2.55 | 0.06
I
(I|R)
0.20 | 1.470.58 | 2.370.33 | 1.38

Back to catalog index


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

Generated on 2021-11-06 16:53:54 UT-5