Color composite thumbnail image of V-093351V-093351 (J013352.42+303909.6)



Target Notes

Color composite thumbnail image of V-093351

Classification: Warm-Hypergiant

In a crowd with many LGGS star >4 magnitudes fainter around it.

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
56140.38 16.24± 0.05AbV-093351 in filter V on MJD  56140.380
V-093351 in filter V on MJD  56140.380
---- 15.96± 0.07AbV-093351 in filter R on MJD  56140.380
V-093351 in filter R on MJD  56140.380
----
56593.16 16.17± 0.03bV-093351 in filter V on MJD  56593.160
16.52± 0.02bV-093351 in filter B on MJD  56593.160
--------
56599.18 16.14± 0.04AbV-093351 in filter V on MJD  56599.180
V-093351 in filter V on MJD  56599.180
16.39± 0.05AbV-093351 in filter B on MJD  56599.180
V-093351 in filter B on MJD  56599.180
15.90± 0.06AbV-093351 in filter R on MJD  56599.180
V-093351 in filter R on MJD  56599.180
----
56976.18 16.33± 0.04AbV-093351 in filter V on MJD  56976.180
V-093351 in filter V on MJD  56976.180
16.51± 0.05AbV-093351 in filter B on MJD  56976.180
V-093351 in filter B on MJD  56976.180
16.04± 0.06AbV-093351 in filter R on MJD  56976.180
V-093351 in filter R on MJD  56976.180
----
57310.13 16.47± 0.05bV-093351 in filter V on MJD  57310.130
17.46± 0.09XV-093351 in filter B on MJD  57310.130
16.14± 0.05bV-093351 in filter R on MJD  57310.130
----
57328.16 16.43± 0.03bV-093351 in filter V on MJD  57328.160
16.71± 0.04bV-093351 in filter B on MJD  57328.160
16.22± 0.04bV-093351 in filter R on MJD  57328.160
----
57335.18 16.54± 0.06bV-093351 in filter V on MJD  57335.180
---- 16.19± 0.05bV-093351 in filter R on MJD  57335.180
----
57401.10 16.57± 0.04bV-093351 in filter V on MJD  57401.100
16.66± 0.05bV-093351 in filter B on MJD  57401.100
--------
57406.10 16.60± 0.04bV-093351 in filter V on MJD  57406.100
16.77± 0.04bV-093351 in filter B on MJD  57406.100
16.07± 0.04bV-093351 in filter R on MJD  57406.100
16.04± 0.07bV-093351 in filter I on MJD  57406.100
57634.36 16.57± 0.04AbV-093351 in filter V on MJD  57634.360
V-093351 in filter V on MJD  57634.360
16.70± 0.06AbV-093351 in filter B on MJD  57634.360
V-093351 in filter B on MJD  57634.360
16.34± 0.06AbV-093351 in filter R on MJD  57634.360
V-093351 in filter R on MJD  57634.360
16.26± 0.08AbV-093351 in filter I on MJD  57634.360
V-093351 in filter I on MJD  57634.360
57687.13 16.65± 0.05bV-093351 in filter V on MJD  57687.130
16.64± 0.06bV-093351 in filter B on MJD  57687.130
16.33± 0.05bV-093351 in filter R on MJD  57687.130
16.26± 0.07bV-093351 in filter I on MJD  57687.130
57964.35 16.42± 0.04AbV-093351 in filter V on MJD  57964.350
V-093351 in filter V on MJD  57964.350
16.57± 0.06AbV-093351 in filter B on MJD  57964.350
V-093351 in filter B on MJD  57964.350
16.19± 0.05AbV-093351 in filter R on MJD  57964.350
V-093351 in filter R on MJD  57964.350
16.27± 0.06AbV-093351 in filter I on MJD  57964.350
V-093351 in filter I on MJD  57964.350
57988.41 16.51± 0.05bV-093351 in filter V on MJD  57988.410
16.64± 0.04bV-093351 in filter B on MJD  57988.410
--------
58043.10 16.36± 0.04bV-093351 in filter V on MJD  58043.100
---- 15.99± 0.04bV-093351 in filter R on MJD  58043.100
16.02± 0.07bV-093351 in filter I on MJD  58043.100
58045.16 16.34± 0.05AbV-093351 in filter V on MJD  58045.160
V-093351 in filter V on MJD  58045.160
16.39± 0.07AbV-093351 in filter B on MJD  58045.160
V-093351 in filter B on MJD  58045.160
16.00± 0.05AbV-093351 in filter R on MJD  58045.160
V-093351 in filter R on MJD  58045.160
----
58073.19 16.22± 0.04AbV-093351 in filter V on MJD  58073.190
V-093351 in filter V on MJD  58073.190
16.50± 0.06AbV-093351 in filter B on MJD  58073.190
V-093351 in filter B on MJD  58073.190
--------
58103.16 16.22± 0.04AbV-093351 in filter V on MJD  58103.160
V-093351 in filter V on MJD  58103.160
V-093351 in filter V on MJD  58103.160
16.44± 0.04bV-093351 in filter B on MJD  58103.160
---- 15.94± 0.06bV-093351 in filter I on MJD  58103.160
58108.13 16.20± 0.05AbV-093351 in filter V on MJD  58108.130
V-093351 in filter V on MJD  58108.130
16.41± 0.07AbV-093351 in filter B on MJD  58108.130
V-093351 in filter B on MJD  58108.130
---- 15.86± 0.07AbV-093351 in filter I on MJD  58108.130
V-093351 in filter I on MJD  58108.130
58312.39 16.31± 0.05bV-093351 in filter V on MJD  58312.390
16.59± 0.07bV-093351 in filter B on MJD  58312.390
--------
58317.37 16.31± 0.04bV-093351 in filter V on MJD  58317.370
16.50± 0.06bV-093351 in filter B on MJD  58317.370
16.09± 0.04bV-093351 in filter R on MJD  58317.370
----
58341.34 16.43± 0.07bV-093351 in filter V on MJD  58341.340
-------- 16.00± 0.07bV-093351 in filter I on MJD  58341.340
58342.40 16.44± 0.04bV-093351 in filter V on MJD  58342.400
16.55± 0.06bV-093351 in filter B on MJD  58342.400
16.11± 0.05bV-093351 in filter R on MJD  58342.400
----
58375.14 16.34± 0.04bV-093351 in filter V on MJD  58375.140
---- 16.11± 0.05bV-093351 in filter R on MJD  58375.140
----
58420.10 16.39± 0.04bV-093351 in filter V on MJD  58420.100
16.45± 0.06bV-093351 in filter B on MJD  58420.100
---- 16.09± 0.07bV-093351 in filter I on MJD  58420.100
58433.00 16.48± 0.05bV-093351 in filter V on MJD  58433.000
---- 16.20± 0.05bV-093351 in filter R on MJD  58433.000
16.09± 0.06bV-093351 in filter I on MJD  58433.000
58672.39 16.31± 0.07bV-093351 in filter V on MJD  58672.390
---- 15.98± 0.06bV-093351 in filter R on MJD  58672.390
16.02± 0.08bV-093351 in filter I on MJD  58672.390
58673.38 16.46± 0.03bV-093351 in filter V on MJD  58673.380
16.71± 0.03bV-093351 in filter B on MJD  58673.380
--------
58695.36 16.35± 0.05bV-093351 in filter V on MJD  58695.360
16.54± 0.05bV-093351 in filter B on MJD  58695.360
16.13± 0.04bV-093351 in filter R on MJD  58695.360
----
58750.19 16.45± 0.03bV-093351 in filter V on MJD  58750.190
---- 16.02± 0.05bV-093351 in filter R on MJD  58750.190
----
58779.18 16.48± 0.04bV-093351 in filter V on MJD  58779.180
16.61± 0.03bV-093351 in filter B on MJD  58779.180
--------
58784.12 16.40± 0.06bV-093351 in filter V on MJD  58784.120
16.60± 0.05bV-093351 in filter B on MJD  58784.120
--------
58812.22 16.38± 0.04bV-093351 in filter V on MJD  58812.220
-------- 15.75± 0.06bV-093351 in filter I on MJD  58812.220
58902.06 16.54± 0.04AbV-093351 in filter V on MJD  58902.060
V-093351 in filter V on MJD  58902.060
---- 16.18± 0.04bV-093351 in filter R on MJD  58902.060
16.08± 0.07bV-093351 in filter I on MJD  58902.060
59056.38 16.74± 0.04bV-093351 in filter V on MJD  59056.380
17.05± 0.06bV-093351 in filter B on MJD  59056.380
16.30± 0.05bV-093351 in filter R on MJD  59056.380
16.53± 0.07bV-093351 in filter I on MJD  59056.380
59059.38 16.72± 0.05bV-093351 in filter V on MJD  59059.380
16.92± 0.06bV-093351 in filter B on MJD  59059.380
--------
59081.26 16.67± 0.05bV-093351 in filter V on MJD  59081.260
---- 16.53± 0.05bV-093351 in filter R on MJD  59081.260
----
59082.32 16.68± 0.03bV-093351 in filter V on MJD  59082.320
16.99± 0.03bV-093351 in filter B on MJD  59082.320
16.42± 0.04bV-093351 in filter R on MJD  59082.320
V-093351 in filter R on MJD  59082.320
----
59084.29-------- 16.40± 0.06TbV-093351 in filter R on MJD  59084.290
----
59161.09 16.69± 0.04AbV-093351 in filter V on MJD  59161.090
V-093351 in filter V on MJD  59161.090
16.80± 0.05AbV-093351 in filter B on MJD  59161.090
V-093351 in filter B on MJD  59161.090
16.47± 0.04AbV-093351 in filter R on MJD  59161.090
V-093351 in filter R on MJD  59161.090
----
59171.11 16.67± 0.04AbV-093351 in filter V on MJD  59171.110
V-093351 in filter V on MJD  59171.110
16.84± 0.03bV-093351 in filter B on MJD  59171.110
---- 16.18± 0.07AbV-093351 in filter I on MJD  59171.110
V-093351 in filter I on MJD  59171.110
59227.09 16.60± 0.03AbV-093351 in filter V on MJD  59227.090
V-093351 in filter V on MJD  59227.090
16.80± 0.04AbV-093351 in filter B on MJD  59227.090
V-093351 in filter B on MJD  59227.090
16.32± 0.04bV-093351 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 V-093351Plot of color for V-093351

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 [0.66 mag]B [0.60 mag]R [0.63 mag]
B [0.66 mag]0.78 (28)
R [0.63 mag]0.74 (25)0.60 (15)
I [0.78 mag]0.56 (15)0.60 (9)0.58 (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 V-093351

Plot to assess correlation between bands for V-093351

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)
16.07 | 0.89
R
(I|R)
10.14 | 1.1118.37 | 0.30
I
(I|R)
6.94 | 1.468.01 | 1.504.82 | 1.18

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