Color composite thumbnail image of V-006389V-006389 (J013241.27+302231.1)



Target Notes

Color composite thumbnail image of V-006389

Classification: OB-Supergiant

No 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
56140.40 17.84± 0.06-V-006389 in filter V on MJD  56140.400
---- 17.68± 0.12-V-006389 in filter R on MJD  56140.400
----
56599.22 17.92± 0.07-V-006389 in filter V on MJD  56599.220
17.77± 0.05-V-006389 in filter B on MJD  56599.220
17.48± 0.05-V-006389 in filter R on MJD  56599.220
----
57035.14 17.74± 0.05-V-006389 in filter V on MJD  57035.140
17.65± 0.04-V-006389 in filter B on MJD  57035.140
17.60± 0.06-V-006389 in filter R on MJD  57035.140
----
57310.16 17.80± 0.06-V-006389 in filter V on MJD  57310.160
17.70± 0.04-V-006389 in filter B on MJD  57310.160
17.60± 0.06-V-006389 in filter R on MJD  57310.160
----
57638.39 17.89± 0.04-V-006389 in filter V on MJD  57638.390
17.82± 0.05-V-006389 in filter B on MJD  57638.390
17.73± 0.04-V-006389 in filter R on MJD  57638.390
17.71± 0.07-V-006389 in filter I on MJD  57638.390
57988.43 17.76± 0.06TV-006389 in filter V on MJD  57988.430
------------
58043.16 17.84± 0.05-V-006389 in filter V on MJD  58043.160
17.73± 0.06-V-006389 in filter B on MJD  58043.160
17.67± 0.06-V-006389 in filter R on MJD  58043.160
17.77± 0.10-V-006389 in filter I on MJD  58043.160
58108.17 17.86± 0.06-V-006389 in filter V on MJD  58108.170
17.74± 0.06-V-006389 in filter B on MJD  58108.170
---- 17.74± 0.09-V-006389 in filter I on MJD  58108.170
58339.40 17.86± 0.06-V-006389 in filter V on MJD  58339.400
17.77± 0.06-V-006389 in filter B on MJD  58339.400
17.70± 0.06-V-006389 in filter R on MJD  58339.400
----
58375.16 17.77± 0.05-V-006389 in filter V on MJD  58375.160
-------- 17.70± 0.10-V-006389 in filter I on MJD  58375.160
58695.39 17.81± 0.05-V-006389 in filter V on MJD  58695.390
---- 17.71± 0.04-V-006389 in filter R on MJD  58695.390
----
58696.41 17.97± 0.06-V-006389 in filter V on MJD  58696.410
17.82± 0.08-V-006389 in filter B on MJD  58696.410
17.75± 0.08-V-006389 in filter R on MJD  58696.410
V-006389 in filter R on MJD  58696.410
----
58750.22 17.79± 0.04-V-006389 in filter V on MJD  58750.220
17.78± 0.03-V-006389 in filter B on MJD  58750.220
---- 17.65± 0.08-V-006389 in filter I on MJD  58750.220
58784.14 17.77± 0.04-V-006389 in filter V on MJD  58784.140
---- 17.67± 0.05-V-006389 in filter R on MJD  58784.140
----
59081.36 17.77± 0.06-V-006389 in filter V on MJD  59081.360
17.64± 0.05-V-006389 in filter B on MJD  59081.360
17.60± 0.05-V-006389 in filter R on MJD  59081.360
17.75± 0.08-V-006389 in filter I on MJD  59081.360
59082.38 17.75± 0.06-V-006389 in filter V on MJD  59082.380
17.77± 0.03-V-006389 in filter B on MJD  59082.380
V-006389 in filter B on MJD  59082.380
17.68± 0.05-V-006389 in filter R on MJD  59082.380
V-006389 in filter R on MJD  59082.380
----
59084.25-------- 17.61± 0.04TV-006389 in filter R on MJD  59084.250
----
59161.14 17.79± 0.05-V-006389 in filter V on MJD  59161.140
---- 17.63± 0.05-V-006389 in filter R on MJD  59161.140
17.71± 0.09-V-006389 in filter I on MJD  59161.140
59171.15 17.83± 0.06AV-006389 in filter V on MJD  59171.150
V-006389 in filter V on MJD  59171.150
17.68± 0.07AV-006389 in filter B on MJD  59171.150
V-006389 in filter B on MJD  59171.150
17.63± 0.05-V-006389 in filter R on MJD  59171.150
17.70± 0.08AV-006389 in filter I on MJD  59171.150
V-006389 in filter I on MJD  59171.150
59227.14 17.77± 0.05AV-006389 in filter V on MJD  59227.140
V-006389 in filter V on MJD  59227.140
17.69± 0.05AV-006389 in filter B on MJD  59227.140
V-006389 in filter B on MJD  59227.140
17.61± 0.05AV-006389 in filter R on MJD  59227.140
V-006389 in filter R on MJD  59227.140
17.68± 0.09-V-006389 in filter I on MJD  59227.140
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 V-006389Plot of color for V-006389

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 [0.18 mag]B [0.23 mag]R [0.26 mag]
B [0.18 mag]0.49 (13)
R [0.26 mag]0.04 (15)0.28 (11)
I [0.12 mag]0.11 (9)0.07 (7)0.02 (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 V-006389

Plot to assess correlation between bands for V-006389

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)
0.94 | 0.92
R
(I|R)
0.35 | 1.030.75 | 0.60
I
(I|R)
0.12 | 2.80-0.21 | 2.650.03 | 2.84

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