Color composite thumbnail image of M33C-13560M33C-13560 (J013327.26+303909.1)



Target Notes

Color composite thumbnail image of M33C-13560

Classification: Of/late-WN

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
56140.39 17.77± 0.04-M33C-13560 in filter V on MJD  56140.390
---- 17.44± 0.12-M33C-13560 in filter R on MJD  56140.390
----
56593.16 17.90± 0.04-M33C-13560 in filter V on MJD  56593.160
17.77± 0.03-M33C-13560 in filter B on MJD  56593.160
--------
56599.19 17.85± 0.04-M33C-13560 in filter V on MJD  56599.190
17.78± 0.03-M33C-13560 in filter B on MJD  56599.190
17.73± 0.07-M33C-13560 in filter R on MJD  56599.190
----
56976.19 18.00± 0.05-M33C-13560 in filter V on MJD  56976.190
17.91± 0.05-M33C-13560 in filter B on MJD  56976.190
17.85± 0.07-M33C-13560 in filter R on MJD  56976.190
----
57310.16 18.12± 0.06-M33C-13560 in filter V on MJD  57310.160
17.82± 0.05-M33C-13560 in filter B on MJD  57310.160
17.78± 0.06-M33C-13560 in filter R on MJD  57310.160
----
57328.16 17.97± 0.04-M33C-13560 in filter V on MJD  57328.160
17.89± 0.04-M33C-13560 in filter B on MJD  57328.160
17.85± 0.04-M33C-13560 in filter R on MJD  57328.160
----
57406.10 17.98± 0.07-M33C-13560 in filter V on MJD  57406.100
17.76± 0.06-M33C-13560 in filter B on MJD  57406.100
17.75± 0.07-M33C-13560 in filter R on MJD  57406.100
17.90± 0.12-M33C-13560 in filter I on MJD  57406.100
57634.38 18.09± 0.05-M33C-13560 in filter V on MJD  57634.380
18.01± 0.05-M33C-13560 in filter B on MJD  57634.380
17.79± 0.07-M33C-13560 in filter R on MJD  57634.380
17.79± 0.10-M33C-13560 in filter I on MJD  57634.380
57638.39 18.02± 0.04-M33C-13560 in filter V on MJD  57638.390
17.87± 0.04-M33C-13560 in filter B on MJD  57638.390
17.86± 0.04-M33C-13560 in filter R on MJD  57638.390
17.84± 0.08-M33C-13560 in filter I on MJD  57638.390
57964.36 18.03± 0.05AM33C-13560 in filter V on MJD  57964.360
M33C-13560 in filter V on MJD  57964.360
17.81± 0.07-M33C-13560 in filter B on MJD  57964.360
17.79± 0.06-M33C-13560 in filter R on MJD  57964.360
17.89± 0.09AM33C-13560 in filter I on MJD  57964.360
M33C-13560 in filter I on MJD  57964.360
M33C-13560 in filter I on MJD  57964.360
57988.41 18.07± 0.05-M33C-13560 in filter V on MJD  57988.410
17.90± 0.05-M33C-13560 in filter B on MJD  57988.410
--------
58043.11 18.03± 0.05AM33C-13560 in filter V on MJD  58043.110
M33C-13560 in filter V on MJD  58043.110
17.92± 0.04-M33C-13560 in filter B on MJD  58043.110
17.76± 0.05AM33C-13560 in filter R on MJD  58043.110
M33C-13560 in filter R on MJD  58043.110
17.57± 0.08-M33C-13560 in filter I on MJD  58043.110
58073.21 17.95± 0.05AM33C-13560 in filter V on MJD  58073.210
M33C-13560 in filter V on MJD  58073.210
17.83± 0.06AM33C-13560 in filter B on MJD  58073.210
M33C-13560 in filter B on MJD  58073.210
--------
58103.17 18.01± 0.06AM33C-13560 in filter V on MJD  58103.170
M33C-13560 in filter V on MJD  58103.170
17.90± 0.04-M33C-13560 in filter B on MJD  58103.170
--------
58108.11 18.07± 0.05AM33C-13560 in filter V on MJD  58108.110
M33C-13560 in filter V on MJD  58108.110
M33C-13560 in filter V on MJD  58108.110
17.89± 0.07AM33C-13560 in filter B on MJD  58108.110
M33C-13560 in filter B on MJD  58108.110
M33C-13560 in filter B on MJD  58108.110
---- 17.71± 0.10AM33C-13560 in filter I on MJD  58108.110
M33C-13560 in filter I on MJD  58108.110
M33C-13560 in filter I on MJD  58108.110
58316.35 18.00± 0.06-M33C-13560 in filter V on MJD  58316.350
17.92± 0.04-M33C-13560 in filter B on MJD  58316.350
--------
58341.37 18.06± 0.05-M33C-13560 in filter V on MJD  58341.370
-------- 17.79± 0.09-M33C-13560 in filter I on MJD  58341.370
58373.15 17.97± 0.06-M33C-13560 in filter V on MJD  58373.150
17.90± 0.07-M33C-13560 in filter B on MJD  58373.150
--------
58433.02 17.85± 0.05-M33C-13560 in filter V on MJD  58433.020
---- 17.62± 0.05-M33C-13560 in filter R on MJD  58433.020
17.52± 0.10-M33C-13560 in filter I on MJD  58433.020
58673.38 17.94± 0.03-M33C-13560 in filter V on MJD  58673.380
17.89± 0.04-M33C-13560 in filter B on MJD  58673.380
--------
58750.19 17.92± 0.04-M33C-13560 in filter V on MJD  58750.190
---- 17.66± 0.05-M33C-13560 in filter R on MJD  58750.190
----
58779.18 17.62± 0.04-M33C-13560 in filter V on MJD  58779.180
17.79± 0.04-M33C-13560 in filter B on MJD  58779.180
--------
58812.21 17.90± 0.05AM33C-13560 in filter V on MJD  58812.210
M33C-13560 in filter V on MJD  58812.210
---- 17.65± 0.07-M33C-13560 in filter R on MJD  58812.210
17.69± 0.07-M33C-13560 in filter I on MJD  58812.210
58902.06 17.89± 0.04AM33C-13560 in filter V on MJD  58902.060
M33C-13560 in filter V on MJD  58902.060
---- 17.62± 0.05-M33C-13560 in filter R on MJD  58902.060
17.63± 0.09-M33C-13560 in filter I on MJD  58902.060
59056.38 17.89± 0.04-M33C-13560 in filter V on MJD  59056.380
17.76± 0.06-M33C-13560 in filter B on MJD  59056.380
17.58± 0.05-M33C-13560 in filter R on MJD  59056.380
17.71± 0.08-M33C-13560 in filter I on MJD  59056.380
59059.40 17.94± 0.06-M33C-13560 in filter V on MJD  59059.400
---- 17.66± 0.05-M33C-13560 in filter R on MJD  59059.400
17.77± 0.12-M33C-13560 in filter I on MJD  59059.400
59081.30 17.92± 0.06-M33C-13560 in filter V on MJD  59081.300
17.78± 0.04-M33C-13560 in filter B on MJD  59081.300
17.73± 0.05-M33C-13560 in filter R on MJD  59081.300
----
59082.32 17.96± 0.03-M33C-13560 in filter V on MJD  59082.320
17.86± 0.03-M33C-13560 in filter B on MJD  59082.320
M33C-13560 in filter B on MJD  59082.320
17.70± 0.05-M33C-13560 in filter R on MJD  59082.320
M33C-13560 in filter R on MJD  59082.320
----
59084.29-------- 17.63± 0.06TM33C-13560 in filter R on MJD  59084.290
----
59161.11 17.91± 0.04-M33C-13560 in filter V on MJD  59161.110
17.85± 0.03-M33C-13560 in filter B on MJD  59161.110
17.67± 0.05-M33C-13560 in filter R on MJD  59161.110
----
59171.11 17.87± 0.04AM33C-13560 in filter V on MJD  59171.110
M33C-13560 in filter V on MJD  59171.110
17.80± 0.03-M33C-13560 in filter B on MJD  59171.110
---- 17.72± 0.08AM33C-13560 in filter I on MJD  59171.110
M33C-13560 in filter I on MJD  59171.110
59227.09 17.98± 0.04AM33C-13560 in filter V on MJD  59227.090
M33C-13560 in filter V on MJD  59227.090
17.85± 0.04AM33C-13560 in filter B on MJD  59227.090
M33C-13560 in filter B on MJD  59227.090
17.72± 0.05-M33C-13560 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-13560Plot of color for M33C-13560

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 [0.25 mag]B [0.50 mag]R [0.41 mag]
B [0.25 mag]0.31 (24)
R [0.41 mag]0.63 (20)0.25 (14)
I [0.38 mag]0.23 (13)0.09 (8)0.35 (10)

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-13560

Plot to assess correlation between bands for M33C-13560

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)
1.83 | 0.76
R
(I|R)
2.14 | 1.070.90 | 0.60
I
(I|R)
1.04 | 1.61-0.50 | 1.361.48 | 1.35

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