Color composite thumbnail image of M33C-13206M33C-13206 (J013353.60+303851.6)



Target Notes

Color composite thumbnail image of M33C-13206

Classification: Of/late-WN

Resolved from three LGGS stars of comparable brightness 4.5 arcseconds to the NW. Other fainter sources around it. Raised confusion and high background may affect R and I.

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
56140.38 17.90± 0.06AbM33C-13206 in filter V on MJD  56140.380
M33C-13206 in filter V on MJD  56140.380
---- 17.40± 0.14AbM33C-13206 in filter R on MJD  56140.380
M33C-13206 in filter R on MJD  56140.380
----
56593.16 18.93± 0.09XM33C-13206 in filter V on MJD  56593.160
17.62± 0.04bM33C-13206 in filter B on MJD  56593.160
--------
56599.18 17.79± 0.05AM33C-13206 in filter V on MJD  56599.180
M33C-13206 in filter V on MJD  56599.180
17.79± 0.07bM33C-13206 in filter B on MJD  56599.180
17.30± 0.06AbM33C-13206 in filter R on MJD  56599.180
M33C-13206 in filter R on MJD  56599.180
----
56976.18 17.84± 0.05AbM33C-13206 in filter V on MJD  56976.180
M33C-13206 in filter V on MJD  56976.180
17.72± 0.06AbM33C-13206 in filter B on MJD  56976.180
M33C-13206 in filter B on MJD  56976.180
17.29± 0.06AbM33C-13206 in filter R on MJD  56976.180
M33C-13206 in filter R on MJD  56976.180
----
57310.13 17.87± 0.07bM33C-13206 in filter V on MJD  57310.130
17.78± 0.08bM33C-13206 in filter B on MJD  57310.130
17.23± 0.05bM33C-13206 in filter R on MJD  57310.130
----
57328.16 17.96± 0.04bM33C-13206 in filter V on MJD  57328.160
17.79± 0.04bM33C-13206 in filter B on MJD  57328.160
17.41± 0.05bM33C-13206 in filter R on MJD  57328.160
----
57335.18 17.89± 0.06TM33C-13206 in filter V on MJD  57335.180
----> 19.52XM33C-13206 in filter R on MJD  57335.180
----
57401.10 17.97± 0.05bM33C-13206 in filter V on MJD  57401.100
17.74± 0.06bM33C-13206 in filter B on MJD  57401.100
--------
57406.10 18.27± 0.12XM33C-13206 in filter V on MJD  57406.100
18.24± 0.10XM33C-13206 in filter B on MJD  57406.100
17.39± 0.06bM33C-13206 in filter R on MJD  57406.100
17.66± 0.12bM33C-13206 in filter I on MJD  57406.100
57634.36 17.98± 0.05AM33C-13206 in filter V on MJD  57634.360
M33C-13206 in filter V on MJD  57634.360
17.64± 0.07AbM33C-13206 in filter B on MJD  57634.360
M33C-13206 in filter B on MJD  57634.360
18.24± 0.13XM33C-13206 in filter R on MJD  57634.360
17.74± 0.09AbM33C-13206 in filter I on MJD  57634.360
M33C-13206 in filter I on MJD  57634.360
57687.13 17.96± 0.05bM33C-13206 in filter V on MJD  57687.130
17.73± 0.07bM33C-13206 in filter B on MJD  57687.130
17.39± 0.06bM33C-13206 in filter R on MJD  57687.130
17.81± 0.09bM33C-13206 in filter I on MJD  57687.130
57964.36 17.72± 0.05bM33C-13206 in filter V on MJD  57964.360
17.80± 0.06bM33C-13206 in filter B on MJD  57964.360
17.93± 0.06XM33C-13206 in filter R on MJD  57964.360
17.65± 0.08AbM33C-13206 in filter I on MJD  57964.360
M33C-13206 in filter I on MJD  57964.360
57988.41 17.95± 0.05bM33C-13206 in filter V on MJD  57988.410
18.39± 0.06XM33C-13206 in filter B on MJD  57988.410
--------
58043.10 17.82± 0.05bM33C-13206 in filter V on MJD  58043.100
--------> 18.38XM33C-13206 in filter I on MJD  58043.100
58045.16 18.82± 0.11XM33C-13206 in filter V on MJD  58045.160
M33C-13206 in filter V on MJD  58045.160
17.64± 0.08bM33C-13206 in filter B on MJD  58045.160
17.31± 0.06AbM33C-13206 in filter R on MJD  58045.160
M33C-13206 in filter R on MJD  58045.160
----
58073.19 18.11± 0.05XM33C-13206 in filter V on MJD  58073.190
18.24± 0.07AXM33C-13206 in filter B on MJD  58073.190
M33C-13206 in filter B on MJD  58073.190
--------
58103.14 17.92± 0.05bM33C-13206 in filter V on MJD  58103.140
-------- 17.68± 0.09bM33C-13206 in filter I on MJD  58103.140
58108.13 17.93± 0.06bM33C-13206 in filter V on MJD  58108.130
17.69± 0.08AbM33C-13206 in filter B on MJD  58108.130
M33C-13206 in filter B on MJD  58108.130
---- 17.76± 0.10bM33C-13206 in filter I on MJD  58108.130
58312.39 17.99± 0.06bM33C-13206 in filter V on MJD  58312.390
17.87± 0.09bM33C-13206 in filter B on MJD  58312.390
--------
58317.37 17.93± 0.05bM33C-13206 in filter V on MJD  58317.370
17.73± 0.07bM33C-13206 in filter B on MJD  58317.370
18.37± 0.07XM33C-13206 in filter R on MJD  58317.370
----
58341.34 17.93± 0.07bM33C-13206 in filter V on MJD  58341.340
-------- 17.71± 0.09bM33C-13206 in filter I on MJD  58341.340
58342.40 17.97± 0.07bM33C-13206 in filter V on MJD  58342.400
17.92± 0.08bM33C-13206 in filter B on MJD  58342.400
17.46± 0.06bM33C-13206 in filter R on MJD  58342.400
----
58375.14 17.96± 0.06bM33C-13206 in filter V on MJD  58375.140
---- 17.29± 0.05bM33C-13206 in filter R on MJD  58375.140
----
58420.10 17.90± 0.06bM33C-13206 in filter V on MJD  58420.100
18.21± 0.07XM33C-13206 in filter B on MJD  58420.100
----> 18.36XM33C-13206 in filter I on MJD  58420.100
58433.00 17.96± 0.07XM33C-13206 in filter V on MJD  58433.000
---- 17.38± 0.06bM33C-13206 in filter R on MJD  58433.000
17.72± 0.10bM33C-13206 in filter I on MJD  58433.000
58672.39 17.99± 0.09bM33C-13206 in filter V on MJD  58672.390
---- 17.29± 0.07bM33C-13206 in filter R on MJD  58672.390
> 18.05XM33C-13206 in filter I on MJD  58672.390
58673.38 18.08± 0.03bM33C-13206 in filter V on MJD  58673.380
17.96± 0.04bM33C-13206 in filter B on MJD  58673.380
--------
58695.36 18.60± 0.09XM33C-13206 in filter V on MJD  58695.360
18.01± 0.06bM33C-13206 in filter B on MJD  58695.360
17.43± 0.06bM33C-13206 in filter R on MJD  58695.360
----
58779.18>19.340XM33C-13206 in filter V on MJD  58779.180
17.94± 0.04TXM33C-13206 in filter B on MJD  58779.180
--------
58784.12 18.20± 0.07XM33C-13206 in filter V on MJD  58784.120
17.72± 0.06bM33C-13206 in filter B on MJD  58784.120
--------
58812.22 18.38± 0.07TXM33C-13206 in filter V on MJD  58812.220
-------- 17.50± 0.07bM33C-13206 in filter I on MJD  58812.220
58902.06 18.46± 0.07AXM33C-13206 in filter V on MJD  58902.060
M33C-13206 in filter V on MJD  58902.060
---- 17.36± 0.06bM33C-13206 in filter R on MJD  58902.060
> 18.36XM33C-13206 in filter I on MJD  58902.060
59056.38 17.94± 0.05bM33C-13206 in filter V on MJD  59056.380
18.24± 0.07XM33C-13206 in filter B on MJD  59056.380
17.21± 0.06bM33C-13206 in filter R on MJD  59056.380
17.81± 0.09bM33C-13206 in filter I on MJD  59056.380
59059.38 18.48± 0.08XM33C-13206 in filter V on MJD  59059.380
18.07± 0.06XM33C-13206 in filter B on MJD  59059.380
--------
59081.26 18.47± 0.09XM33C-13206 in filter V on MJD  59081.260
---- 17.39± 0.06bM33C-13206 in filter R on MJD  59081.260
----
59082.32 18.59± 0.07XM33C-13206 in filter V on MJD  59082.320
18.19± 0.05XM33C-13206 in filter B on MJD  59082.320
17.41± 0.05bM33C-13206 in filter R on MJD  59082.320
M33C-13206 in filter R on MJD  59082.320
----
59084.29-------- 17.20± 0.07TbM33C-13206 in filter R on MJD  59084.290
----
59161.08 17.88± 0.06bM33C-13206 in filter V on MJD  59161.080
17.73± 0.07bM33C-13206 in filter B on MJD  59161.080
17.40± 0.05AbM33C-13206 in filter R on MJD  59161.080
M33C-13206 in filter R on MJD  59161.080
----
59171.11 18.10± 0.06AbM33C-13206 in filter V on MJD  59171.110
M33C-13206 in filter V on MJD  59171.110
17.68± 0.04bM33C-13206 in filter B on MJD  59171.110
---- 18.40± 0.13XM33C-13206 in filter I on MJD  59171.110
M33C-13206 in filter I on MJD  59171.110
59227.09 17.97± 0.04bM33C-13206 in filter V on MJD  59227.090
17.70± 0.03bM33C-13206 in filter B on MJD  59227.090
17.48± 0.06bM33C-13206 in filter R on MJD  59227.090
----
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 M33C-13206Plot of color for M33C-13206

Key for Plot Variability Photometry Table Target Notes


Variability

Plot/Graph Photometry Table Target Notes

From the data available in this survey, it is not possible to tell with certainty if 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 [0.39 mag]B [0.38 mag]R [0.28 mag]
B [0.39 mag]0.01 (16)
R [0.28 mag]0.12 (12)0.11 (10)
I [0.31 mag]0.46 (7)0.28 (4)0.27 (4)

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 M33C-13206

Plot to assess correlation between bands for M33C-13206

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)
0.68 | 0.84
R
(I|R)
0.69 | 0.73-0.64 | 0.18
I
(I|R)
0.82 | 1.84--- | --- --- | ----

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