Color composite thumbnail image of M33C-13254M33C-13254 (J013311.88+303853.7 )



Target Notes

Color composite thumbnail image of M33C-13254

Classification: YSG

Confusing blend with six LGGS stars including two of comparable brightness within 2 arcseconds. Not resolved from J013311.85+303852.7 (also a target V-028741). **Updated 180530**

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
56140.39 16.37± 0.04BM33C-13254 in filter V on MJD  56140.390
---- 16.10± 0.09BM33C-13254 in filter R on MJD  56140.390
----
56593.16 16.30± 0.04BM33C-13254 in filter V on MJD  56593.160
16.61± 0.03BM33C-13254 in filter B on MJD  56593.160
--------
56599.19 16.21± 0.04BM33C-13254 in filter V on MJD  56599.190
16.32± 0.03BM33C-13254 in filter B on MJD  56599.190
15.90± 0.06BM33C-13254 in filter R on MJD  56599.190
----
56976.19 16.12± 0.04BM33C-13254 in filter V on MJD  56976.190
16.34± 0.04BM33C-13254 in filter B on MJD  56976.190
16.03± 0.07BM33C-13254 in filter R on MJD  56976.190
----
57310.16 16.35± 0.05BM33C-13254 in filter V on MJD  57310.160
16.11± 0.04BM33C-13254 in filter B on MJD  57310.160
16.07± 0.05BM33C-13254 in filter R on MJD  57310.160
----
57328.16 16.35± 0.04BM33C-13254 in filter V on MJD  57328.160
16.38± 0.04BM33C-13254 in filter B on MJD  57328.160
16.17± 0.04BM33C-13254 in filter R on MJD  57328.160
----
57406.10 16.13± 0.04BM33C-13254 in filter V on MJD  57406.100
16.19± 0.04BM33C-13254 in filter B on MJD  57406.100
16.13± 0.05BM33C-13254 in filter R on MJD  57406.100
16.13± 0.07BM33C-13254 in filter I on MJD  57406.100
57634.38 16.61± 0.04BM33C-13254 in filter V on MJD  57634.380
16.27± 0.05BM33C-13254 in filter B on MJD  57634.380
16.01± 0.07BM33C-13254 in filter R on MJD  57634.380
15.97± 0.09BM33C-13254 in filter I on MJD  57634.380
57638.39 16.33± 0.04BM33C-13254 in filter V on MJD  57638.390
16.33± 0.04BM33C-13254 in filter B on MJD  57638.390
16.20± 0.04BM33C-13254 in filter R on MJD  57638.390
16.18± 0.07BM33C-13254 in filter I on MJD  57638.390
57964.40 16.35± 0.04BM33C-13254 in filter V on MJD  57964.400
-------- 16.11± 0.07ABM33C-13254 in filter I on MJD  57964.400
M33C-13254 in filter I on MJD  57964.400
57988.41 16.33± 0.05BM33C-13254 in filter V on MJD  57988.410
16.30± 0.04BM33C-13254 in filter B on MJD  57988.410
--------
58043.11 16.34± 0.04ABM33C-13254 in filter V on MJD  58043.110
M33C-13254 in filter V on MJD  58043.110
16.36± 0.04BM33C-13254 in filter B on MJD  58043.110
16.08± 0.04ABM33C-13254 in filter R on MJD  58043.110
M33C-13254 in filter R on MJD  58043.110
16.11± 0.07BM33C-13254 in filter I on MJD  58043.110
58073.22 16.56± 0.05BM33C-13254 in filter V on MJD  58073.220
16.34± 0.05BM33C-13254 in filter B on MJD  58073.220
--------
58103.17 16.40± 0.06BM33C-13254 in filter V on MJD  58103.170
16.35± 0.05BM33C-13254 in filter B on MJD  58103.170
--------
58108.11 16.36± 0.05ABM33C-13254 in filter V on MJD  58108.110
M33C-13254 in filter V on MJD  58108.110
16.40± 0.06ABM33C-13254 in filter B on MJD  58108.110
M33C-13254 in filter B on MJD  58108.110
---- 16.14± 0.08ABM33C-13254 in filter I on MJD  58108.110
M33C-13254 in filter I on MJD  58108.110
58316.35 16.32± 0.06BM33C-13254 in filter V on MJD  58316.350
16.39± 0.04BM33C-13254 in filter B on MJD  58316.350
--------
58341.37 16.34± 0.04BM33C-13254 in filter V on MJD  58341.370
-------- 16.10± 0.08BM33C-13254 in filter I on MJD  58341.370
58373.15 16.33± 0.06BM33C-13254 in filter V on MJD  58373.150
16.37± 0.06BM33C-13254 in filter B on MJD  58373.150
--------
58433.02 16.36± 0.05BM33C-13254 in filter V on MJD  58433.020
---- 16.24± 0.06BM33C-13254 in filter R on MJD  58433.020
16.16± 0.09BM33C-13254 in filter I on MJD  58433.020
58673.38 16.40± 0.04BM33C-13254 in filter V on MJD  58673.380
16.44± 0.04BM33C-13254 in filter B on MJD  58673.380
--------
58750.19 16.28± 0.04BM33C-13254 in filter V on MJD  58750.190
---- 16.12± 0.06BM33C-13254 in filter R on MJD  58750.190
----
58779.18 16.65± 0.04BM33C-13254 in filter V on MJD  58779.180
15.82± 0.04XM33C-13254 in filter B on MJD  58779.180
--------
58812.20 16.24± 0.07BM33C-13254 in filter V on MJD  58812.200
---- 15.91± 0.08BM33C-13254 in filter R on MJD  58812.200
----
59056.38 16.29± 0.04BM33C-13254 in filter V on MJD  59056.380
16.28± 0.06BM33C-13254 in filter B on MJD  59056.380
16.01± 0.06BM33C-13254 in filter R on MJD  59056.380
16.07± 0.08BM33C-13254 in filter I on MJD  59056.380
59059.40 16.34± 0.07BM33C-13254 in filter V on MJD  59059.400
---- 16.21± 0.07BM33C-13254 in filter R on MJD  59059.400
16.05± 0.08BM33C-13254 in filter I on MJD  59059.400
59081.30 16.32± 0.05BM33C-13254 in filter V on MJD  59081.300
16.31± 0.05BM33C-13254 in filter B on MJD  59081.300
16.17± 0.06BM33C-13254 in filter R on MJD  59081.300
----
59082.32 16.38± 0.04BM33C-13254 in filter V on MJD  59082.320
16.34± 0.04BM33C-13254 in filter B on MJD  59082.320
M33C-13254 in filter B on MJD  59082.320
16.16± 0.06BM33C-13254 in filter R on MJD  59082.320
M33C-13254 in filter R on MJD  59082.320
----
59084.29-------- 16.08± 0.06TBM33C-13254 in filter R on MJD  59084.290
----
59161.11 16.30± 0.04BM33C-13254 in filter V on MJD  59161.110
16.57± 0.05BM33C-13254 in filter B on MJD  59161.110
16.13± 0.06BM33C-13254 in filter R on MJD  59161.110
----
59171.11 16.33± 0.04BM33C-13254 in filter V on MJD  59171.110
16.31± 0.04BM33C-13254 in filter B on MJD  59171.110
---- 16.14± 0.08BM33C-13254 in filter I on MJD  59171.110
59227.10 16.27± 0.04BM33C-13254 in filter V on MJD  59227.100
16.29± 0.04BM33C-13254 in filter B on MJD  59227.100
--------
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-13254Plot of color for M33C-13254

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 [0.50 mag]B [0.53 mag]R [0.34 mag]
B [0.50 mag]0.00 (22)
R [0.34 mag]0.03 (17)0.04 (12)
I [0.21 mag]0.35 (11)0.10 (7)0.45 (7)

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-13254

Plot to assess correlation between bands for M33C-13254

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)
0.51 | 1.08
R
(I|R)
0.67 | 1.280.63 | 0.40
I
(I|R)
-0.95 | 2.490.27 | 2.020.89 | 2.09

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