Color composite thumbnail image of V-125093V-125093 (J013415.42+302816.4)



Target Notes

Color composite thumbnail image of V-125093

Classification: Warm-Hypergiant

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
56982.22 17.37± 0.06-V-125093 in filter V on MJD  56982.220
18.03± 0.06-V-125093 in filter B on MJD  56982.220
16.82± 0.07-V-125093 in filter R on MJD  56982.220
----
57328.19 17.48± 0.05-V-125093 in filter V on MJD  57328.190
18.13± 0.07-V-125093 in filter B on MJD  57328.190
16.92± 0.07-V-125093 in filter R on MJD  57328.190
----
57401.10 17.50± 0.05-V-125093 in filter V on MJD  57401.100
18.14± 0.06-V-125093 in filter B on MJD  57401.100
--------
57406.10 17.45± 0.06-V-125093 in filter V on MJD  57406.100
18.21± 0.09-V-125093 in filter B on MJD  57406.100
16.95± 0.05-V-125093 in filter R on MJD  57406.100
16.48± 0.07-V-125093 in filter I on MJD  57406.100
57634.41 17.40± 0.07-V-125093 in filter V on MJD  57634.410
17.98± 0.08-V-125093 in filter B on MJD  57634.410
16.84± 0.07-V-125093 in filter R on MJD  57634.410
----
57638.43 17.39± 0.06-V-125093 in filter V on MJD  57638.430
-------- 16.34± 0.10-V-125093 in filter I on MJD  57638.430
57964.33 17.50± 0.05-V-125093 in filter V on MJD  57964.330
18.10± 0.07-V-125093 in filter B on MJD  57964.330
16.90± 0.05-V-125093 in filter R on MJD  57964.330
16.28± 0.06-V-125093 in filter I on MJD  57964.330
58045.18 17.53± 0.05-V-125093 in filter V on MJD  58045.180
18.16± 0.07-V-125093 in filter B on MJD  58045.180
16.94± 0.05-V-125093 in filter R on MJD  58045.180
----
58073.20 17.45± 0.05-V-125093 in filter V on MJD  58073.200
18.15± 0.07-V-125093 in filter B on MJD  58073.200
--------
58103.18 17.41± 0.05TV-125093 in filter V on MJD  58103.180
------------
58108.11 17.41± 0.06-V-125093 in filter V on MJD  58108.110
18.18± 0.09-V-125093 in filter B on MJD  58108.110
---- 16.35± 0.07-V-125093 in filter I on MJD  58108.110
58312.39 17.45± 0.05-V-125093 in filter V on MJD  58312.390
18.19± 0.10-V-125093 in filter B on MJD  58312.390
--------
58317.37 17.48± 0.04-V-125093 in filter V on MJD  58317.370
18.20± 0.07-V-125093 in filter B on MJD  58317.370
16.92± 0.04-V-125093 in filter R on MJD  58317.370
----
58341.34 17.46± 0.07-V-125093 in filter V on MJD  58341.340
-------- 16.36± 0.07-V-125093 in filter I on MJD  58341.340
58342.40 17.49± 0.06-V-125093 in filter V on MJD  58342.400
18.16± 0.09-V-125093 in filter B on MJD  58342.400
16.91± 0.05-V-125093 in filter R on MJD  58342.400
----
58375.14 17.50± 0.05-V-125093 in filter V on MJD  58375.140
---- 16.94± 0.05-V-125093 in filter R on MJD  58375.140
----
58420.10 17.56± 0.05-V-125093 in filter V on MJD  58420.100
18.23± 0.07-V-125093 in filter B on MJD  58420.100
---- 16.48± 0.07-V-125093 in filter I on MJD  58420.100
58672.39 17.40± 0.07-V-125093 in filter V on MJD  58672.390
---- 16.83± 0.06-V-125093 in filter R on MJD  58672.390
16.36± 0.08-V-125093 in filter I on MJD  58672.390
58695.36 17.38± 0.05-V-125093 in filter V on MJD  58695.360
18.08± 0.05-V-125093 in filter B on MJD  58695.360
16.81± 0.04-V-125093 in filter R on MJD  58695.360
----
58696.41 17.44± 0.05-V-125093 in filter V on MJD  58696.410
18.13± 0.08-V-125093 in filter B on MJD  58696.410
V-125093 in filter B on MJD  58696.410
16.82± 0.07-V-125093 in filter R on MJD  58696.410
V-125093 in filter R on MJD  58696.410
----
58757.17 17.30± 0.05-V-125093 in filter V on MJD  58757.170
---- 16.78± 0.05-V-125093 in filter R on MJD  58757.170
----
58784.14 17.33± 0.05AV-125093 in filter V on MJD  58784.140
V-125093 in filter V on MJD  58784.140
17.92± 0.06-V-125093 in filter B on MJD  58784.140
---- 16.30± 0.07-V-125093 in filter I on MJD  58784.140
59059.38 17.27± 0.05-V-125093 in filter V on MJD  59059.380
17.98± 0.06-V-125093 in filter B on MJD  59059.380
--------
59081.26 17.27± 0.05-V-125093 in filter V on MJD  59081.260
---- 16.72± 0.05-V-125093 in filter R on MJD  59081.260
----
59084.38-------- 16.75± 0.06TV-125093 in filter R on MJD  59084.380
----
59161.07 17.28± 0.05-V-125093 in filter V on MJD  59161.070
18.04± 0.06-V-125093 in filter B on MJD  59161.070
16.71± 0.04-V-125093 in filter R on MJD  59161.070
----
59171.17 17.40± 0.04-V-125093 in filter V on MJD  59171.170
18.08± 0.09-V-125093 in filter B on MJD  59171.170
16.79± 0.05-V-125093 in filter R on MJD  59171.170
16.23± 0.08-V-125093 in filter I on MJD  59171.170
59227.15 17.32± 0.05-V-125093 in filter V on MJD  59227.150
18.04± 0.06-V-125093 in filter B on MJD  59227.150
16.74± 0.04-V-125093 in filter R on MJD  59227.150
16.20± 0.07-V-125093 in filter I on MJD  59227.150
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-125093Plot of color for V-125093

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 [0.29 mag]R [0.24 mag]
B [0.31 mag]0.62 (20)
R [0.24 mag]0.86 (17)0.58 (13)
I [0.28 mag]0.42 (10)0.51 (7)0.71 (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 V-125093

Plot to assess correlation between bands for V-125093

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)
1.70 | 0.81
R
(I|R)
2.50 | 0.97-1.34 | 0.03
I
(I|R)
1.12 | 1.121.61 | 0.982.09 | 1.13

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