Color composite thumbnail image of M33-013459.47M33-013459.47 (J013459.47+303701.9)


Target Notes

Color composite thumbnail image of M33-013459.47

Classification: B[e]sg

No blend concerns

Find In Simbad Query LGGS Massey (2016) at VizieR Query CAT WISE (Eisenhardt et al., 2020) at VizieR Query Gaia DR3 (2022) 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 18.40± 0.07TM33-013459.47 in filter V on MJD 56140.370
---- 17.86± 0.17-M33-013459.47 in filter R on MJD 56140.370
----
56599.17 18.35± 0.05-M33-013459.47 in filter V on MJD 56599.170
 18.58± 0.07-M33-013459.47 in filter B on MJD 56599.170
 17.90± 0.06-M33-013459.47 in filter R on MJD 56599.170
----
56976.16 18.52± 0.05-M33-013459.47 in filter V on MJD 56976.160
 18.85± 0.08-M33-013459.47 in filter B on MJD 56976.160
 17.91± 0.06-M33-013459.47 in filter R on MJD 56976.160
----
57038.13 18.37± 0.05-M33-013459.47 in filter V on MJD 57038.130
 18.69± 0.06-M33-013459.47 in filter B on MJD 57038.130
 17.81± 0.05-M33-013459.47 in filter R on MJD 57038.130
----
57310.13 18.34± 0.08-M33-013459.47 in filter V on MJD 57310.130
 18.63± 0.08-M33-013459.47 in filter B on MJD 57310.130
 17.79± 0.05-M33-013459.47 in filter R on MJD 57310.130
----
57335.18 18.42± 0.07-M33-013459.47 in filter V on MJD 57335.180
---- 17.89± 0.05-M33-013459.47 in filter R on MJD 57335.180
----
57401.10 18.64± 0.06-M33-013459.47 in filter V on MJD 57401.100
 18.85± 0.07-M33-013459.47 in filter B on MJD 57401.100
--------
57634.34 18.51± 0.05-M33-013459.47 in filter V on MJD 57634.340
 18.76± 0.08-M33-013459.47 in filter B on MJD 57634.340
 17.91± 0.06-M33-013459.47 in filter R on MJD 57634.340
 17.84± 0.07-M33-013459.47 in filter I on MJD 57634.340
57687.13 18.54± 0.06-M33-013459.47 in filter V on MJD 57687.130
 18.77± 0.08-M33-013459.47 in filter B on MJD 57687.130
 17.88± 0.05-M33-013459.47 in filter R on MJD 57687.130
 17.53± 0.07-M33-013459.47 in filter I on MJD 57687.130
57964.33 18.45± 0.06-M33-013459.47 in filter V on MJD 57964.330
 18.70± 0.08-M33-013459.47 in filter B on MJD 57964.330
 17.78± 0.06-M33-013459.47 in filter R on MJD 57964.330
 17.58± 0.07-M33-013459.47 in filter I on MJD 57964.330
58045.18 18.22± 0.06-M33-013459.47 in filter V on MJD 58045.180
 18.49± 0.09-M33-013459.47 in filter B on MJD 58045.180
 17.71± 0.06-M33-013459.47 in filter R on MJD 58045.180
----
58073.20 18.35± 0.05-M33-013459.47 in filter V on MJD 58073.200
 18.52± 0.07-M33-013459.47 in filter B on MJD 58073.200
--------
58103.18 18.41± 0.07TM33-013459.47 in filter V on MJD 58103.180
------------
58108.11 18.40± 0.06-M33-013459.47 in filter V on MJD 58108.110
 18.70± 0.10-M33-013459.47 in filter B on MJD 58108.110
---- 17.64± 0.12-M33-013459.47 in filter I on MJD 58108.110
58312.39 18.46± 0.06-M33-013459.47 in filter V on MJD 58312.390
 18.81± 0.15-M33-013459.47 in filter B on MJD 58312.390
--------
58317.37 18.52± 0.06-M33-013459.47 in filter V on MJD 58317.370
 18.69± 0.08-M33-013459.47 in filter B on MJD 58317.370
 17.87± 0.05-M33-013459.47 in filter R on MJD 58317.370
----
58341.34 18.55± 0.07-M33-013459.47 in filter V on MJD 58341.340
-------- 17.61± 0.07-M33-013459.47 in filter I on MJD 58341.340
58342.40 18.48± 0.08-M33-013459.47 in filter V on MJD 58342.400
 18.77± 0.12-M33-013459.47 in filter B on MJD 58342.400
 17.93± 0.07-M33-013459.47 in filter R on MJD 58342.400
----
58375.14 18.66± 0.07-M33-013459.47 in filter V on MJD 58375.140
---- 17.94± 0.06-M33-013459.47 in filter R on MJD 58375.140
----
58420.10 18.57± 0.06-M33-013459.47 in filter V on MJD 58420.100
 18.70± 0.08-M33-013459.47 in filter B on MJD 58420.100
---- 17.98± 0.10-M33-013459.47 in filter I on MJD 58420.100
58433.00 18.47± 0.10-M33-013459.47 in filter V on MJD 58433.000
---- 17.86± 0.06-M33-013459.47 in filter R on MJD 58433.000
 17.40± 0.08-M33-013459.47 in filter I on MJD 58433.000
58672.39 18.52± 0.11-M33-013459.47 in filter V on MJD 58672.390
---- 17.97± 0.06-M33-013459.47 in filter R on MJD 58672.390
 17.72± 0.17-M33-013459.47 in filter I on MJD 58672.390
58695.36 18.55± 0.06-M33-013459.47 in filter V on MJD 58695.360
 18.69± 0.06-M33-013459.47 in filter B on MJD 58695.360
 17.91± 0.04-M33-013459.47 in filter R on MJD 58695.360
----
58784.12 18.49± 0.06-M33-013459.47 in filter V on MJD 58784.120
 18.77± 0.06-M33-013459.47 in filter B on MJD 58784.120
--------
58812.22 18.49± 0.05-M33-013459.47 in filter V on MJD 58812.220
-------- 17.74± 0.07-M33-013459.47 in filter I on MJD 58812.220
58902.07 18.51± 0.05-M33-013459.47 in filter V on MJD 58902.070
---- 17.97± 0.05-M33-013459.47 in filter R on MJD 58902.070
----
59059.38 18.43± 0.05-M33-013459.47 in filter V on MJD 59059.380
 18.67± 0.06-M33-013459.47 in filter B on MJD 59059.380
--------
59081.30 18.47± 0.05AM33-013459.47 in filter V on MJD 59081.300
M33-013459.47 in filter V on MJD 59081.300
 18.58± 0.06-M33-013459.47 in filter B on MJD 59081.300
 17.85± 0.04AM33-013459.47 in filter R on MJD 59081.300
M33-013459.47 in filter R on MJD 59081.300
----
59084.34-------- 17.92± 0.04TM33-013459.47 in filter R on MJD 59084.340
----
59161.07 18.55± 0.06-M33-013459.47 in filter V on MJD 59161.070
 18.86± 0.08-M33-013459.47 in filter B on MJD 59161.070
 17.97± 0.05-M33-013459.47 in filter R on MJD 59161.070
----
59171.09 18.55± 0.06TM33-013459.47 in filter V on MJD 59171.090
--------> 15.91-M33-013459.47 in filter I on MJD 59171.090
59227.08 18.42± 0.04-M33-013459.47 in filter V on MJD 59227.080
 18.73± 0.05-M33-013459.47 in filter B on MJD 59227.080
 17.80± 0.04-M33-013459.47 in filter R on MJD 59227.080
----
59415.36 18.38± 0.07-M33-013459.47 in filter V on MJD 59415.360
---- 17.93± 0.05-M33-013459.47 in filter R on MJD 59415.360
----
59441.39 18.38± 0.06-M33-013459.47 in filter V on MJD 59441.390
 18.62± 0.06TM33-013459.47 in filter B on MJD 59441.390
--------
59463.30 18.16± 0.07AM33-013459.47 in filter V on MJD 59463.300
M33-013459.47 in filter V on MJD 59463.300
-------- 17.41± 0.05-M33-013459.47 in filter I on MJD 59463.300
59523.15 18.38± 0.04-M33-013459.47 in filter V on MJD 59523.150
---- 17.82± 0.04-M33-013459.47 in filter R on MJD 59523.150
----
59525.15 18.29± 0.05-M33-013459.47 in filter V on MJD 59525.150
 18.56± 0.05-M33-013459.47 in filter B on MJD 59525.150
--------
59546.15 18.41± 0.04-M33-013459.47 in filter V on MJD 59546.150
-------- 17.78± 0.05-M33-013459.47 in filter I on MJD 59546.150
59551.11 18.38± 0.06-M33-013459.47 in filter V on MJD 59551.110
 18.62± 0.07-M33-013459.47 in filter B on MJD 59551.110
--------
59583.15 18.45± 0.05-M33-013459.47 in filter V on MJD 59583.150
---- 17.87± 0.05-M33-013459.47 in filter R on MJD 59583.150
----
59608.07 18.43± 0.05-M33-013459.47 in filter V on MJD 59608.070
-------- 17.39± 0.07-M33-013459.47 in filter I on MJD 59608.070
59794.35 18.41± 0.05TM33-013459.47 in filter V on MJD 59794.350
------------
59823.24 18.35± 0.05-M33-013459.47 in filter V on MJD 59823.240
 18.68± 0.06-M33-013459.47 in filter B on MJD 59823.240
--------
59851.13 18.45± 0.06-M33-013459.47 in filter V on MJD 59851.130
---- 17.85± 0.05-M33-013459.47 in filter R on MJD 59851.130
----
59854.22 18.44± 0.05-M33-013459.47 in filter V on MJD 59854.220
 18.62± 0.06-M33-013459.47 in filter B on MJD 59854.220
--------
59879.12 18.34± 0.06-M33-013459.47 in filter V on MJD 59879.120
-------- 17.86± 0.09AM33-013459.47 in filter I on MJD 59879.120
M33-013459.47 in filter I on MJD 59879.120
59904.12 18.39± 0.05-M33-013459.47 in filter V on MJD 59904.120
 18.68± 0.06-M33-013459.47 in filter B on MJD 59904.120
 17.76± 0.05-M33-013459.47 in filter R on MJD 59904.120
 17.64± 0.07-M33-013459.47 in filter I on MJD 59904.120
59932.13 18.20± 0.06-M33-013459.47 in filter V on MJD 59932.130
---- 17.68± 0.06-M33-013459.47 in filter R on MJD 59932.130
----
60172.37 18.32± 0.04-M33-013459.47 in filter V on MJD 60172.370
 18.59± 0.05-M33-013459.47 in filter B on MJD 60172.370
--------
60205.15 18.09± 0.06-M33-013459.47 in filter V on MJD 60205.150
---- 17.63± 0.05-M33-013459.47 in filter R on MJD 60205.150
----
60227.12 18.03± 0.06-M33-013459.47 in filter V on MJD 60227.120
-------- 17.20± 0.07-M33-013459.47 in filter I on MJD 60227.120
60262.13 18.23± 0.05-M33-013459.47 in filter V on MJD 60262.130
 18.52± 0.06-M33-013459.47 in filter B on MJD 60262.130
 17.71± 0.05-M33-013459.47 in filter R on MJD 60262.130
----
60290.15 18.21± 0.05-M33-013459.47 in filter V on MJD 60290.150
 18.47± 0.06-M33-013459.47 in filter B on MJD 60290.150
---- 17.40± 0.07-M33-013459.47 in filter I on MJD 60290.150
60292.18 18.28± 0.04-M33-013459.47 in filter V on MJD 60292.180
---- 17.77± 0.05-M33-013459.47 in filter R on MJD 60292.180
----
60342.08 18.42± 0.05-M33-013459.47 in filter V on MJD 60342.080
---- 17.86± 0.05-M33-013459.47 in filter R on MJD 60342.080
----
60504.38 18.13± 0.05-M33-013459.47 in filter V on MJD 60504.380
 18.43± 0.06-M33-013459.47 in filter B on MJD 60504.380
 17.63± 0.05-M33-013459.47 in filter R on MJD 60504.380
----
60529.36 18.15± 0.05-M33-013459.47 in filter V on MJD 60529.360
-------- 17.45± 0.07-M33-013459.47 in filter I on MJD 60529.360
60556.24 18.31± 0.05-M33-013459.47 in filter V on MJD 60556.240
 18.63± 0.06-M33-013459.47 in filter B on MJD 60556.240
 17.78± 0.05-M33-013459.47 in filter R on MJD 60556.240
----
60594.10 18.41± 0.08-M33-013459.47 in filter V on MJD 60594.100
-------- 17.50± 0.08-M33-013459.47 in filter I on MJD 60594.100
60612.14 18.35± 0.06-M33-013459.47 in filter V on MJD 60612.140
---- 17.84± 0.06-M33-013459.47 in filter R on MJD 60612.140
----
60651.14 18.29± 0.05-M33-013459.47 in filter V on MJD 60651.140
 18.56± 0.06-M33-013459.47 in filter B on MJD 60651.140
--------
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 M33-013459.47Plot of color for M33-013459.47

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 [0.62 mag]B [0.43 mag]R [0.34 mag]
B [0.43 mag]0.72 (33)
R [0.34 mag]0.77 (33)0.63 (18)
I [0.78 mag]0.40 (18)0.30 (7)0.14 (6)

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 M33-013459.47

Plot to assess correlation between bands for M33-013459.47

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)		2.93 | 0.75
R
(I|R)		3.42 | 1.250.68 | 0.08
I
(I|R)		4.76 | 0.922.25 | 0.680.66 | 0.83

Back to catalog index

By John C. Martin, University of Illinois Springfield Henry R. Barber Research Observatory

Generated on 2025-08-04 15:53:14 UT-5