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 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 17.35± 0.05-M33-013303.40 in filter V on MJD  56140.400
---- 16.95± 0.07-M33-013303.40 in filter R on MJD  56140.400
----
56599.22 17.56± 0.06-M33-013303.40 in filter V on MJD  56599.220
18.40± 0.06-M33-013303.40 in filter B on MJD  56599.220
17.10± 0.05-M33-013303.40 in filter R on MJD  56599.220
----
57035.14 17.49± 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
17.06± 0.05-M33-013303.40 in filter R on MJD  57035.140
----
57310.16 17.43± 0.05-M33-013303.40 in filter V on MJD  57310.160
18.15± 0.05-M33-013303.40 in filter B on MJD  57310.160
16.94± 0.05-M33-013303.40 in filter R on MJD  57310.160
----
57328.16 17.43± 0.04-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 17.33± 0.05-M33-013303.40 in filter V on MJD  57406.100
17.95± 0.07-M33-013303.40 in filter B on MJD  57406.100
16.90± 0.05-M33-013303.40 in filter R on MJD  57406.100
16.46± 0.07-M33-013303.40 in filter I on MJD  57406.100
57634.41 17.13± 0.07-M33-013303.40 in filter V on MJD  57634.410
17.81± 0.08-M33-013303.40 in filter B on MJD  57634.410
16.73± 0.07-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
17.94± 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
16.49± 0.08AM33-013303.40 in filter I on MJD  57638.400
M33-013303.40 in filter I on MJD  57638.400
57964.40 17.41± 0.04-M33-013303.40 in filter V on MJD  57964.400
-------- 16.60± 0.07AM33-013303.40 in filter I on MJD  57964.400
M33-013303.40 in filter I on MJD  57964.400
57988.43 17.23± 0.06TM33-013303.40 in filter V on MJD  57988.430
------------
58043.13 17.35± 0.03-M33-013303.40 in filter V on MJD  58043.130
18.10± 0.04-M33-013303.40 in filter B on MJD  58043.130
16.91± 0.04-M33-013303.40 in filter R on MJD  58043.130
----
58073.22 17.47± 0.05-M33-013303.40 in filter V on MJD  58073.220
18.34± 0.06-M33-013303.40 in filter B on MJD  58073.220
--------
58108.13 17.50± 0.04AM33-013303.40 in filter V on MJD  58108.130
M33-013303.40 in filter V on MJD  58108.130
18.27± 0.05AM33-013303.40 in filter B on MJD  58108.130
M33-013303.40 in filter B on MJD  58108.130
---- 16.56± 0.08AM33-013303.40 in filter I on MJD  58108.130
M33-013303.40 in filter I on MJD  58108.130
58316.35 17.40± 0.06-M33-013303.40 in filter V on MJD  58316.350
18.19± 0.04-M33-013303.40 in filter B on MJD  58316.350
--------
58339.40 17.37± 0.06-M33-013303.40 in filter V on MJD  58339.400
18.19± 0.07-M33-013303.40 in filter B on MJD  58339.400
16.90± 0.06-M33-013303.40 in filter R on MJD  58339.400
----
58341.37 17.48± 0.04-M33-013303.40 in filter V on MJD  58341.370
-------- 16.59± 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
18.34± 0.08-M33-013303.40 in filter B on MJD  58373.150
--------
58375.16 17.35± 0.05-M33-013303.40 in filter V on MJD  58375.160
-------- 16.48± 0.09-M33-013303.40 in filter I on MJD  58375.160
58433.02 17.39± 0.05-M33-013303.40 in filter V on MJD  58433.020
---- 16.96± 0.05-M33-013303.40 in filter R on MJD  58433.020
16.68± 0.09-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 17.29± 0.04-M33-013303.40 in filter V on MJD  58695.390
---- 16.86± 0.04-M33-013303.40 in filter R on MJD  58695.390
----
58750.20 17.38± 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
16.91± 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 17.38± 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 17.50± 0.04-M33-013303.40 in filter V on MJD  58779.180
18.21± 0.04-M33-013303.40 in filter B on MJD  58779.180
--------
58784.14 17.45± 0.04-M33-013303.40 in filter V on MJD  58784.140
---- 16.99± 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
---- 16.91± 0.06-M33-013303.40 in filter R on MJD  58812.200
----
59059.40 17.54± 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
16.68± 0.08-M33-013303.40 in filter I on MJD  59059.400
59081.34 17.33± 0.05AM33-013303.40 in filter V on MJD  59081.340
M33-013303.40 in filter V on MJD  59081.340
18.05± 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
16.89± 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 17.42± 0.04-M33-013303.40 in filter V on MJD  59161.140
---- 17.01± 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 17.41± 0.05AM33-013303.40 in filter V on MJD  59171.150
M33-013303.40 in filter V on MJD  59171.150
18.15± 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 17.35± 0.05AM33-013303.40 in filter V on MJD  59227.140
M33-013303.40 in filter V on MJD  59227.140
18.08± 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
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 [0.59 mag]B [0.44 mag]R [0.37 mag]
B [0.59 mag]0.85 (20)
R [0.37 mag]0.93 (22)0.87 (14)
I [0.22 mag]0.51 (13)0.63 (7)0.59 (9)

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)
4.66 | 1.35
R
(I|R)
2.34 | 1.084.61 | 0.08
I
(I|R)
0.95 | 1.481.17 | 3.151.08 | 1.20

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