Color composite thumbnail image of M33-013442.14M33-013442.14 (J013442.14+303216.0)



Target Notes

Color composite thumbnail image of M33-013442.14

Classification: YSG

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
56140.37 17.33± 0.06-M33-013442.14 in filter V on MJD  56140.370
---- 16.84± 0.09-M33-013442.14 in filter R on MJD  56140.370
----
56599.17 17.27± 0.05-M33-013442.14 in filter V on MJD  56599.170
17.97± 0.07-M33-013442.14 in filter B on MJD  56599.170
16.80± 0.06-M33-013442.14 in filter R on MJD  56599.170
----
56976.16 17.31± 0.04-M33-013442.14 in filter V on MJD  56976.160
18.11± 0.06-M33-013442.14 in filter B on MJD  56976.160
16.82± 0.05-M33-013442.14 in filter R on MJD  56976.160
----
57038.13 17.38± 0.04-M33-013442.14 in filter V on MJD  57038.130
18.10± 0.05-M33-013442.14 in filter B on MJD  57038.130
16.91± 0.04-M33-013442.14 in filter R on MJD  57038.130
----
57310.13 17.34± 0.06-M33-013442.14 in filter V on MJD  57310.130
18.13± 0.08-M33-013442.14 in filter B on MJD  57310.130
16.80± 0.05-M33-013442.14 in filter R on MJD  57310.130
----
57328.19 17.33± 0.05-M33-013442.14 in filter V on MJD  57328.190
18.05± 0.07-M33-013442.14 in filter B on MJD  57328.190
16.81± 0.07-M33-013442.14 in filter R on MJD  57328.190
----
57335.18 17.38± 0.06-M33-013442.14 in filter V on MJD  57335.180
---- 16.83± 0.05-M33-013442.14 in filter R on MJD  57335.180
----
57401.10 17.38± 0.04-M33-013442.14 in filter V on MJD  57401.100
18.14± 0.06-M33-013442.14 in filter B on MJD  57401.100
--------
57634.34 17.40± 0.05-M33-013442.14 in filter V on MJD  57634.340
18.19± 0.07-M33-013442.14 in filter B on MJD  57634.340
16.88± 0.05-M33-013442.14 in filter R on MJD  57634.340
16.43± 0.06-M33-013442.14 in filter I on MJD  57634.340
57687.13 17.23± 0.05-M33-013442.14 in filter V on MJD  57687.130
17.90± 0.07-M33-013442.14 in filter B on MJD  57687.130
16.73± 0.05-M33-013442.14 in filter R on MJD  57687.130
16.32± 0.07-M33-013442.14 in filter I on MJD  57687.130
57964.33 17.30± 0.04-M33-013442.14 in filter V on MJD  57964.330
18.05± 0.07-M33-013442.14 in filter B on MJD  57964.330
16.77± 0.05-M33-013442.14 in filter R on MJD  57964.330
16.31± 0.06-M33-013442.14 in filter I on MJD  57964.330
58045.18 17.36± 0.05-M33-013442.14 in filter V on MJD  58045.180
18.07± 0.08-M33-013442.14 in filter B on MJD  58045.180
16.82± 0.05-M33-013442.14 in filter R on MJD  58045.180
----
58073.20 17.27± 0.04-M33-013442.14 in filter V on MJD  58073.200
17.96± 0.07-M33-013442.14 in filter B on MJD  58073.200
--------
58103.18 17.31± 0.05TM33-013442.14 in filter V on MJD  58103.180
------------
58108.11 17.32± 0.05-M33-013442.14 in filter V on MJD  58108.110
18.02± 0.08-M33-013442.14 in filter B on MJD  58108.110
---- 16.42± 0.07-M33-013442.14 in filter I on MJD  58108.110
58312.39 17.25± 0.05-M33-013442.14 in filter V on MJD  58312.390
17.96± 0.10-M33-013442.14 in filter B on MJD  58312.390
--------
58317.37 17.28± 0.04-M33-013442.14 in filter V on MJD  58317.370
17.97± 0.06-M33-013442.14 in filter B on MJD  58317.370
16.80± 0.04-M33-013442.14 in filter R on MJD  58317.370
----
58341.34 17.27± 0.07-M33-013442.14 in filter V on MJD  58341.340
-------- 16.33± 0.07-M33-013442.14 in filter I on MJD  58341.340
58342.40 17.31± 0.05-M33-013442.14 in filter V on MJD  58342.400
17.92± 0.08-M33-013442.14 in filter B on MJD  58342.400
16.80± 0.05-M33-013442.14 in filter R on MJD  58342.400
----
58375.14 17.34± 0.05-M33-013442.14 in filter V on MJD  58375.140
---- 16.80± 0.05-M33-013442.14 in filter R on MJD  58375.140
----
58420.10 17.28± 0.05-M33-013442.14 in filter V on MJD  58420.100
18.03± 0.06-M33-013442.14 in filter B on MJD  58420.100
---- 16.27± 0.07-M33-013442.14 in filter I on MJD  58420.100
58433.00 17.27± 0.05-M33-013442.14 in filter V on MJD  58433.000
---- 16.82± 0.05-M33-013442.14 in filter R on MJD  58433.000
16.44± 0.06-M33-013442.14 in filter I on MJD  58433.000
58672.39 17.32± 0.07-M33-013442.14 in filter V on MJD  58672.390
---- 16.84± 0.06-M33-013442.14 in filter R on MJD  58672.390
16.30± 0.08-M33-013442.14 in filter I on MJD  58672.390
58695.36 17.29± 0.05-M33-013442.14 in filter V on MJD  58695.360
18.05± 0.05-M33-013442.14 in filter B on MJD  58695.360
16.80± 0.04-M33-013442.14 in filter R on MJD  58695.360
----
58784.12 17.42± 0.06-M33-013442.14 in filter V on MJD  58784.120
18.20± 0.06-M33-013442.14 in filter B on MJD  58784.120
--------
58812.22 17.25± 0.04-M33-013442.14 in filter V on MJD  58812.220
-------- 16.40± 0.06-M33-013442.14 in filter I on MJD  58812.220
58902.07 17.30± 0.04-M33-013442.14 in filter V on MJD  58902.070
---- 16.79± 0.04-M33-013442.14 in filter R on MJD  58902.070
----
59059.38 17.26± 0.05-M33-013442.14 in filter V on MJD  59059.380
18.00± 0.06-M33-013442.14 in filter B on MJD  59059.380
--------
59081.26 17.21± 0.05-M33-013442.14 in filter V on MJD  59081.260
---- 16.77± 0.05-M33-013442.14 in filter R on MJD  59081.260
----
59084.34-------- 16.77± 0.04TM33-013442.14 in filter R on MJD  59084.340
----
59161.07 17.40± 0.05-M33-013442.14 in filter V on MJD  59161.070
18.20± 0.07-M33-013442.14 in filter B on MJD  59161.070
16.88± 0.04-M33-013442.14 in filter R on MJD  59161.070
----
59171.09 17.33± 0.04-M33-013442.14 in filter V on MJD  59171.090
-------- 16.35± 0.06-M33-013442.14 in filter I on MJD  59171.090
59227.08 17.33± 0.04-M33-013442.14 in filter V on MJD  59227.080
18.13± 0.04-M33-013442.14 in filter B on MJD  59227.080
16.82± 0.04-M33-013442.14 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 M33-013442.14Plot of color for M33-013442.14

Key for Plot Variability Photometry Table Target Notes


Variability

Plot/Graph Photometry Table Target Notes

It is 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 [0.31 mag]B [0.21 mag]R [0.18 mag]
B [0.31 mag]0.78 (21)
R [0.18 mag]0.61 (21)0.51 (14)
I [0.17 mag]0.09 (10)0.28 (5)0.31 (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 M33-013442.14

Plot to assess correlation between bands for M33-013442.14

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)
1.31 | 1.25
R
(I|R)
0.67 | 1.331.60 | 0.04
I
(I|R)
0.27 | 0.860.81 | 0.960.70 | 0.98

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