Color composite thumbnail image of M33C-10788M33C-10788 (J013416.07+303642.1)



Target Notes

Color composite thumbnail image of M33C-10788

Classification: Of/late-WN

(Candidate LBV) Resolved from J013416.04+303637.9 of comparable brightness 4.2 arseconds S.

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
56140.37 18.03± 0.07-M33C-10788 in filter V on MJD  56140.370
---- 17.50± 0.12-M33C-10788 in filter R on MJD  56140.370
----
56599.17 18.05± 0.06-M33C-10788 in filter V on MJD  56599.170
18.05± 0.07-M33C-10788 in filter B on MJD  56599.170
17.62± 0.06-M33C-10788 in filter R on MJD  56599.170
----
56976.16 17.85± 0.04-M33C-10788 in filter V on MJD  56976.160
17.91± 0.06-M33C-10788 in filter B on MJD  56976.160
17.50± 0.05-M33C-10788 in filter R on MJD  56976.160
----
57038.13 17.88± 0.05-M33C-10788 in filter V on MJD  57038.130
17.88± 0.06-M33C-10788 in filter B on MJD  57038.130
17.58± 0.05-M33C-10788 in filter R on MJD  57038.130
----
57310.13 18.02± 0.07-M33C-10788 in filter V on MJD  57310.130
18.10± 0.08-M33C-10788 in filter B on MJD  57310.130
17.77± 0.06-M33C-10788 in filter R on MJD  57310.130
----
57335.18 18.01± 0.06-M33C-10788 in filter V on MJD  57335.180
---- 17.62± 0.05-M33C-10788 in filter R on MJD  57335.180
----
57401.10 17.96± 0.05-M33C-10788 in filter V on MJD  57401.100
17.96± 0.06-M33C-10788 in filter B on MJD  57401.100
--------
57406.10 17.88± 0.08-M33C-10788 in filter V on MJD  57406.100
18.02± 0.08-M33C-10788 in filter B on MJD  57406.100
17.55± 0.06-M33C-10788 in filter R on MJD  57406.100
17.43± 0.10-M33C-10788 in filter I on MJD  57406.100
57634.34 17.99± 0.05-M33C-10788 in filter V on MJD  57634.340
18.00± 0.07-M33C-10788 in filter B on MJD  57634.340
17.74± 0.06-M33C-10788 in filter R on MJD  57634.340
17.67± 0.07-M33C-10788 in filter I on MJD  57634.340
57638.43 18.00± 0.07-M33C-10788 in filter V on MJD  57638.430
-------- 17.73± 0.11-M33C-10788 in filter I on MJD  57638.430
57687.13 18.04± 0.06-M33C-10788 in filter V on MJD  57687.130
18.22± 0.07-M33C-10788 in filter B on MJD  57687.130
17.77± 0.06-M33C-10788 in filter R on MJD  57687.130
17.61± 0.08-M33C-10788 in filter I on MJD  57687.130
57964.35 17.99± 0.05AM33C-10788 in filter V on MJD  57964.350
M33C-10788 in filter V on MJD  57964.350
17.98± 0.07AM33C-10788 in filter B on MJD  57964.350
M33C-10788 in filter B on MJD  57964.350
17.64± 0.05AM33C-10788 in filter R on MJD  57964.350
M33C-10788 in filter R on MJD  57964.350
17.54± 0.07AM33C-10788 in filter I on MJD  57964.350
M33C-10788 in filter I on MJD  57964.350
58045.16 17.83± 0.06AM33C-10788 in filter V on MJD  58045.160
M33C-10788 in filter V on MJD  58045.160
17.92± 0.07AM33C-10788 in filter B on MJD  58045.160
M33C-10788 in filter B on MJD  58045.160
17.57± 0.06AM33C-10788 in filter R on MJD  58045.160
M33C-10788 in filter R on MJD  58045.160
----
58073.19 17.86± 0.05AM33C-10788 in filter V on MJD  58073.190
M33C-10788 in filter V on MJD  58073.190
17.86± 0.07AM33C-10788 in filter B on MJD  58073.190
M33C-10788 in filter B on MJD  58073.190
--------
58103.16 17.96± 0.05AM33C-10788 in filter V on MJD  58103.160
M33C-10788 in filter V on MJD  58103.160
-------- 17.44± 0.07-M33C-10788 in filter I on MJD  58103.160
58108.11 17.89± 0.06-M33C-10788 in filter V on MJD  58108.110
17.83± 0.08-M33C-10788 in filter B on MJD  58108.110
---- 18.32± 0.22XM33C-10788 in filter I on MJD  58108.110
58312.39 17.91± 0.05-M33C-10788 in filter V on MJD  58312.390
17.84± 0.10-M33C-10788 in filter B on MJD  58312.390
--------
58316.38 17.96± 0.04-M33C-10788 in filter V on MJD  58316.380
17.95± 0.06-M33C-10788 in filter B on MJD  58316.380
17.62± 0.04-M33C-10788 in filter R on MJD  58316.380
17.72± 0.07-M33C-10788 in filter I on MJD  58316.380
58317.37 17.95± 0.05-M33C-10788 in filter V on MJD  58317.370
17.93± 0.07-M33C-10788 in filter B on MJD  58317.370
M33C-10788 in filter B on MJD  58317.370
17.63± 0.05-M33C-10788 in filter R on MJD  58317.370
M33C-10788 in filter R on MJD  58317.370
----
58341.34 17.81± 0.07-M33C-10788 in filter V on MJD  58341.340
-------- 17.50± 0.08-M33C-10788 in filter I on MJD  58341.340
58342.38 17.96± 0.05AM33C-10788 in filter V on MJD  58342.380
M33C-10788 in filter V on MJD  58342.380
17.89± 0.07AM33C-10788 in filter B on MJD  58342.380
M33C-10788 in filter B on MJD  58342.380
17.61± 0.05AM33C-10788 in filter R on MJD  58342.380
M33C-10788 in filter R on MJD  58342.380
17.44± 0.06-M33C-10788 in filter I on MJD  58342.380
M33C-10788 in filter I on MJD  58342.380
58375.14 17.86± 0.06-M33C-10788 in filter V on MJD  58375.140
---- 17.50± 0.05-M33C-10788 in filter R on MJD  58375.140
----
58420.08 17.95± 0.05AM33C-10788 in filter V on MJD  58420.080
M33C-10788 in filter V on MJD  58420.080
17.96± 0.07AM33C-10788 in filter B on MJD  58420.080
M33C-10788 in filter B on MJD  58420.080
17.50± 0.04-M33C-10788 in filter R on MJD  58420.080
17.53± 0.09AM33C-10788 in filter I on MJD  58420.080
M33C-10788 in filter I on MJD  58420.080
58433.00 17.91± 0.07-M33C-10788 in filter V on MJD  58433.000
---- 17.61± 0.06-M33C-10788 in filter R on MJD  58433.000
17.52± 0.08-M33C-10788 in filter I on MJD  58433.000
58672.39 17.88± 0.08-M33C-10788 in filter V on MJD  58672.390
---- 17.57± 0.06-M33C-10788 in filter R on MJD  58672.390
17.20± 0.11-M33C-10788 in filter I on MJD  58672.390
58695.36 17.84± 0.05-M33C-10788 in filter V on MJD  58695.360
17.83± 0.05-M33C-10788 in filter B on MJD  58695.360
17.59± 0.04-M33C-10788 in filter R on MJD  58695.360
----
58784.12 17.84± 0.06-M33C-10788 in filter V on MJD  58784.120
17.81± 0.06-M33C-10788 in filter B on MJD  58784.120
--------
58812.22 17.84± 0.05-M33C-10788 in filter V on MJD  58812.220
-------- 17.45± 0.06-M33C-10788 in filter I on MJD  58812.220
58902.07 17.87± 0.04-M33C-10788 in filter V on MJD  58902.070
---- 17.59± 0.05-M33C-10788 in filter R on MJD  58902.070
----
59059.38 17.70± 0.05-M33C-10788 in filter V on MJD  59059.380
17.70± 0.06-M33C-10788 in filter B on MJD  59059.380
--------
59081.30 17.59± 0.04AM33C-10788 in filter V on MJD  59081.300
M33C-10788 in filter V on MJD  59081.300
17.60± 0.06-M33C-10788 in filter B on MJD  59081.300
17.29± 0.04AM33C-10788 in filter R on MJD  59081.300
M33C-10788 in filter R on MJD  59081.300
----
59084.34-------- 17.33± 0.04TM33C-10788 in filter R on MJD  59084.340
----
59161.07 17.54± 0.05-M33C-10788 in filter V on MJD  59161.070
17.59± 0.06-M33C-10788 in filter B on MJD  59161.070
17.25± 0.04-M33C-10788 in filter R on MJD  59161.070
----
59171.09 17.57± 0.05-M33C-10788 in filter V on MJD  59171.090
-------- 17.09± 0.07-M33C-10788 in filter I on MJD  59171.090
59227.08 17.62± 0.04-M33C-10788 in filter V on MJD  59227.080
17.64± 0.04-M33C-10788 in filter B on MJD  59227.080
17.32± 0.05-M33C-10788 in filter R on MJD  59227.080
----
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-10788Plot of color for M33C-10788

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 [0.63 mag]B [0.52 mag]R [0.52 mag]
B [0.63 mag]0.84 (23)
R [0.52 mag]0.75 (23)0.82 (17)
I [0.64 mag]0.59 (14)0.05 (7)0.27 (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 M33C-10788

Plot to assess correlation between bands for M33C-10788

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)
6.62 | 0.85
R
(I|R)
7.16 | 1.057.09 | 0.32
I
(I|R)
4.36 | 0.950.48 | 0.771.27 | 0.84

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