Color composite thumbnail image of M33C-16063M33C-16063 (J013332.82+304146.0)



Target Notes

Color composite thumbnail image of M33C-16063

Classification: Of/late-WN

Resolved in B and V from two LGGS stars about 0.5 magnitudes fainter within 2-3 arcseconds. Sometimes unresolved in R with some confusion in 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
56140.39 18.23± 0.06-M33C-16063 in filter V on MJD  56140.390
---- 18.49± 0.41XM33C-16063 in filter R on MJD  56140.390
----
56593.16 18.25± 0.05-M33C-16063 in filter V on MJD  56593.160
17.98± 0.04-M33C-16063 in filter B on MJD  56593.160
--------
56599.19 18.26± 0.06-M33C-16063 in filter V on MJD  56599.190
17.98± 0.04-M33C-16063 in filter B on MJD  56599.190
17.92± 0.07-M33C-16063 in filter R on MJD  56599.190
----
56976.19 18.12± 0.06-M33C-16063 in filter V on MJD  56976.190
17.93± 0.05-M33C-16063 in filter B on MJD  56976.190
18.03± 0.07-M33C-16063 in filter R on MJD  56976.190
----
57328.16 18.07± 0.04-M33C-16063 in filter V on MJD  57328.160
17.88± 0.04-M33C-16063 in filter B on MJD  57328.160
18.07± 0.05XM33C-16063 in filter R on MJD  57328.160
----
57406.10 17.97± 0.07-M33C-16063 in filter V on MJD  57406.100
17.86± 0.07-M33C-16063 in filter B on MJD  57406.100
18.04± 0.12-M33C-16063 in filter R on MJD  57406.100
17.97± 0.12-M33C-16063 in filter I on MJD  57406.100
57634.38 18.26± 0.05-M33C-16063 in filter V on MJD  57634.380
17.92± 0.05-M33C-16063 in filter B on MJD  57634.380
18.05± 0.07-M33C-16063 in filter R on MJD  57634.380
18.23± 0.12-M33C-16063 in filter I on MJD  57634.380
57988.41 18.06± 0.05-M33C-16063 in filter V on MJD  57988.410
17.93± 0.05-M33C-16063 in filter B on MJD  57988.410
--------
58043.10 18.05± 0.05-M33C-16063 in filter V on MJD  58043.100
---- 18.11± 0.08-M33C-16063 in filter R on MJD  58043.100
17.75± 0.17-M33C-16063 in filter I on MJD  58043.100
58103.17 18.28± 0.07-M33C-16063 in filter V on MJD  58103.170
17.94± 0.05-M33C-16063 in filter B on MJD  58103.170
--------
58108.14 18.17± 0.09-M33C-16063 in filter V on MJD  58108.140
17.93± 0.07-M33C-16063 in filter B on MJD  58108.140
---- 17.96± 0.11-M33C-16063 in filter I on MJD  58108.140
58317.39 18.24± 0.06-M33C-16063 in filter V on MJD  58317.390
---- 18.40± 0.10-M33C-16063 in filter R on MJD  58317.390
----
58341.40 18.26± 0.06-M33C-16063 in filter V on MJD  58341.400
17.99± 0.08-M33C-16063 in filter B on MJD  58341.400
18.17± 0.09-M33C-16063 in filter R on MJD  58341.400
18.43± 0.13-M33C-16063 in filter I on MJD  58341.400
58373.15 18.50± 0.11-M33C-16063 in filter V on MJD  58373.150
17.88± 0.07-M33C-16063 in filter B on MJD  58373.150
--------
58673.38 18.29± 0.04-M33C-16063 in filter V on MJD  58673.380
17.99± 0.05-M33C-16063 in filter B on MJD  58673.380
--------
58750.19 18.28± 0.05-M33C-16063 in filter V on MJD  58750.190
---- 18.29± 0.08-M33C-16063 in filter R on MJD  58750.190
----
58779.18 18.01± 0.05-M33C-16063 in filter V on MJD  58779.180
17.86± 0.04-M33C-16063 in filter B on MJD  58779.180
--------
58902.05 18.19± 0.05-M33C-16063 in filter V on MJD  58902.050
-------- 17.93± 0.11-M33C-16063 in filter I on MJD  58902.050
59056.38 18.25± 0.05-M33C-16063 in filter V on MJD  59056.380
18.00± 0.06-M33C-16063 in filter B on MJD  59056.380
18.29± 0.08-M33C-16063 in filter R on MJD  59056.380
18.11± 0.09-M33C-16063 in filter I on MJD  59056.380
59082.32 18.26± 0.04-M33C-16063 in filter V on MJD  59082.320
17.99± 0.04-M33C-16063 in filter B on MJD  59082.320
18.30± 0.07-M33C-16063 in filter R on MJD  59082.320
----
59084.29-------- 18.27± 0.07TM33C-16063 in filter R on MJD  59084.290
----
59161.11 18.13± 0.05-M33C-16063 in filter V on MJD  59161.110
18.00± 0.04-M33C-16063 in filter B on MJD  59161.110
18.16± 0.07-M33C-16063 in filter R on MJD  59161.110
----
59171.11 18.05± 0.05AM33C-16063 in filter V on MJD  59171.110
M33C-16063 in filter V on MJD  59171.110
17.95± 0.03-M33C-16063 in filter B on MJD  59171.110
---- 17.93± 0.09AM33C-16063 in filter I on MJD  59171.110
M33C-16063 in filter I on MJD  59171.110
59227.10 18.29± 0.05-M33C-16063 in filter V on MJD  59227.100
17.98± 0.03-M33C-16063 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-16063Plot of color for M33C-16063

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 [0.15 mag]B [0.53 mag]R [0.48 mag]
B [0.15 mag]0.13 (18)
R [0.48 mag]0.16 (11)0.31 (8)
I [0.68 mag]0.50 (8)0.24 (6)0.05 (5)

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-16063

Plot to assess correlation between bands for M33C-16063

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)
1.19 | 0.45
R
(I|R)
1.10 | 1.050.68 | 0.34
I
(I|R)
2.27 | 1.300.40 | 0.480.29 | 0.69

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