Color composite thumbnail image of M31-004130.37M31-004130.37 (J004130.36+410500.8)



Target Notes

Color composite thumbnail image of M31-004130.37

Classification: Of/late-WN

Sometimes unresolved from LGGS star J004130.23+410501.6 and two others that combine to be comparable brightness to target 2 arcseconds WNW.

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 Kaluzny et al. (1998) M31 Survey at VizieR
Query POINT-AGAPE An et al. (2004) M31 Survey at VizieR


Photometry Table

Download table (txt) Key to Flags in Table Key For Images Plot/Graph Variability
MJDV*ImageB*ImageR*ImagesI*Images
56593.14 18.08± 0.05-M31-004130.37 in filter V on MJD  56593.140
18.18± 0.06-M31-004130.37 in filter B on MJD  56593.140
16.89± 0.07-M31-004130.37 in filter R on MJD  56593.140
----
56930.12 18.39± 0.13AM31-004130.37 in filter V on MJD  56930.120
M31-004130.37 in filter V on MJD  56930.120
18.41± 0.14-M31-004130.37 in filter B on MJD  56930.120
17.39± 0.05AM31-004130.37 in filter R on MJD  56930.120
M31-004130.37 in filter R on MJD  56930.120
----
57285.24 18.43± 0.12-M31-004130.37 in filter V on MJD  57285.240
17.93± 0.05BM31-004130.37 in filter B on MJD  57285.240
16.94± 0.05-M31-004130.37 in filter R on MJD  57285.240
----
57307.19 18.08± 0.06-M31-004130.37 in filter V on MJD  57307.190
18.38± 0.09-M31-004130.37 in filter B on MJD  57307.190
17.00± 0.07-M31-004130.37 in filter R on MJD  57307.190
----
57659.15 17.64± 0.07TXM31-004130.37 in filter V on MJD  57659.150
--------> 18.51XM31-004130.37 in filter I on MJD  57659.150
57687.09 18.03± 0.10-M31-004130.37 in filter V on MJD  57687.090
18.41± 0.08-M31-004130.37 in filter B on MJD  57687.090
17.09± 0.07-M31-004130.37 in filter R on MJD  57687.090
17.52± 0.12-M31-004130.37 in filter I on MJD  57687.090
57963.37 17.95± 0.07AM31-004130.37 in filter V on MJD  57963.370
M31-004130.37 in filter V on MJD  57963.370
18.26± 0.07-M31-004130.37 in filter B on MJD  57963.370
M31-004130.37 in filter B on MJD  57963.370
17.08± 0.08-M31-004130.37 in filter R on MJD  57963.370
17.46± 0.13-M31-004130.37 in filter I on MJD  57963.370
57964.27 17.84± 0.06-M31-004130.37 in filter V on MJD  57964.270
---- 16.88± 0.08-M31-004130.37 in filter R on MJD  57964.270
M31-004130.37 in filter R on MJD  57964.270
----
57988.27 17.94± 0.06AM31-004130.37 in filter V on MJD  57988.270
M31-004130.37 in filter V on MJD  57988.270
18.40± 0.08AM31-004130.37 in filter B on MJD  57988.270
M31-004130.37 in filter B on MJD  57988.270
16.91± 0.06-M31-004130.37 in filter R on MJD  57988.270
18.15± 0.40-M31-004130.37 in filter I on MJD  57988.270
58035.05 17.88± 0.06-M31-004130.37 in filter V on MJD  58035.050
---- 16.98± 0.08-M31-004130.37 in filter R on MJD  58035.050
----
58045.12 17.77± 0.06-M31-004130.37 in filter V on MJD  58045.120
-------- 18.52± 0.19-M31-004130.37 in filter I on MJD  58045.120
58073.12 18.00± 0.08AM31-004130.37 in filter V on MJD  58073.120
M31-004130.37 in filter V on MJD  58073.120
18.07± 0.08AM31-004130.37 in filter B on MJD  58073.120
M31-004130.37 in filter B on MJD  58073.120
--------
58098.15 18.11± 0.07AM31-004130.37 in filter V on MJD  58098.150
M31-004130.37 in filter V on MJD  58098.150
18.29± 0.07-M31-004130.37 in filter B on MJD  58098.150
17.00± 0.06-M31-004130.37 in filter R on MJD  58098.150
17.63± 0.08-M31-004130.37 in filter I on MJD  58098.150
58312.37 18.10± 0.07-M31-004130.37 in filter V on MJD  58312.370
18.42± 0.10-M31-004130.37 in filter B on MJD  58312.370
--------
58317.31 18.16± 0.10-M31-004130.37 in filter V on MJD  58317.310
18.30± 0.10-M31-004130.37 in filter B on MJD  58317.310
17.14± 0.07-M31-004130.37 in filter R on MJD  58317.310
----
58339.30 18.05± 0.07-M31-004130.37 in filter V on MJD  58339.300
---- 17.10± 0.07-M31-004130.37 in filter R on MJD  58339.300
17.66± 0.16XM31-004130.37 in filter I on MJD  58339.300
58341.32 18.23± 0.07-M31-004130.37 in filter V on MJD  58341.320
-------- 18.81± 0.46-M31-004130.37 in filter I on MJD  58341.320
58342.29 17.89± 0.08-M31-004130.37 in filter V on MJD  58342.290
18.22± 0.12-M31-004130.37 in filter B on MJD  58342.290
--------
58373.11 17.91± 0.11-M31-004130.37 in filter V on MJD  58373.110
18.47± 0.12-M31-004130.37 in filter B on MJD  58373.110
--------
58407.07 18.40± 0.23-M31-004130.37 in filter V on MJD  58407.070
---- 16.21± 0.07XM31-004130.37 in filter R on MJD  58407.070
----
58672.34 18.33± 0.11-M31-004130.37 in filter V on MJD  58672.340
18.15± 0.10-M31-004130.37 in filter B on MJD  58672.340
--------
58673.33 18.29± 0.04AM31-004130.37 in filter V on MJD  58673.330
M31-004130.37 in filter V on MJD  58673.330
18.27± 0.05-M31-004130.37 in filter B on MJD  58673.330
M31-004130.37 in filter B on MJD  58673.330
17.13± 0.08-M31-004130.37 in filter R on MJD  58673.330
17.84± 0.08-M31-004130.37 in filter I on MJD  58673.330
58696.33 18.31± 0.07-M31-004130.37 in filter V on MJD  58696.330
18.29± 0.07-M31-004130.37 in filter B on MJD  58696.330
17.20± 0.07-M31-004130.37 in filter R on MJD  58696.330
----
58750.16 18.17± 0.04-M31-004130.37 in filter V on MJD  58750.160
---- 17.14± 0.07-M31-004130.37 in filter R on MJD  58750.160
17.96± 0.14-M31-004130.37 in filter I on MJD  58750.160
58757.12 18.23± 0.08-M31-004130.37 in filter V on MJD  58757.120
---- 17.20± 0.06-M31-004130.37 in filter R on MJD  58757.120
----
58784.10 18.22± 0.04-M31-004130.37 in filter V on MJD  58784.100
18.33± 0.06-M31-004130.37 in filter B on MJD  58784.100
--------
58836.14 17.91± 0.11-M31-004130.37 in filter V on MJD  58836.140
---- 17.03± 0.05AM31-004130.37 in filter R on MJD  58836.140
M31-004130.37 in filter R on MJD  58836.140
17.34± 0.07AM31-004130.37 in filter I on MJD  58836.140
M31-004130.37 in filter I on MJD  58836.140
59026.37 18.23± 0.06AM31-004130.37 in filter V on MJD  59026.370
M31-004130.37 in filter V on MJD  59026.370
17.92± 0.08XM31-004130.37 in filter B on MJD  59026.370
17.14± 0.08AM31-004130.37 in filter R on MJD  59026.370
M31-004130.37 in filter R on MJD  59026.370
----
59056.29 18.18± 0.06AM31-004130.37 in filter V on MJD  59056.290
M31-004130.37 in filter V on MJD  59056.290
18.32± 0.07AM31-004130.37 in filter B on MJD  59056.290
M31-004130.37 in filter B on MJD  59056.290
---- 17.89± 0.09AM31-004130.37 in filter I on MJD  59056.290
M31-004130.37 in filter I on MJD  59056.290
59077.27 18.13± 0.06-M31-004130.37 in filter V on MJD  59077.270
---- 17.14± 0.08-M31-004130.37 in filter R on MJD  59077.270
17.65± 0.08-M31-004130.37 in filter I on MJD  59077.270
59082.25 18.18± 0.07AM31-004130.37 in filter V on MJD  59082.250
M31-004130.37 in filter V on MJD  59082.250
18.34± 0.09AM31-004130.37 in filter B on MJD  59082.250
M31-004130.37 in filter B on MJD  59082.250
17.13± 0.06-M31-004130.37 in filter R on MJD  59082.250
----
59136.06 18.17± 0.21-M31-004130.37 in filter V on MJD  59136.060
---- 17.03± 0.09-M31-004130.37 in filter R on MJD  59136.060
17.84± 0.26-M31-004130.37 in filter I on MJD  59136.060
59166.17 18.23± 0.06AM31-004130.37 in filter V on MJD  59166.170
M31-004130.37 in filter V on MJD  59166.170
18.58± 0.09-M31-004130.37 in filter B on MJD  59166.170
17.11± 0.06-M31-004130.37 in filter R on MJD  59166.170
17.88± 0.11-M31-004130.37 in filter I on MJD  59166.170
59382.35 18.61± 0.28XM31-004130.37 in filter V on MJD  59382.350
M31-004130.37 in filter V on MJD  59382.350
18.03± 0.12XM31-004130.37 in filter B on MJD  59382.350
17.21± 0.07-M31-004130.37 in filter R on MJD  59382.350
----
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 M31-004130.37Plot of color for M31-004130.37

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 [0.65 mag]B [0.66 mag]R [0.51 mag]
B [0.65 mag]0.05 (20)
R [0.51 mag]0.34 (22)0.15 (13)
I [1.47 mag]0.00 (13)0.12 (7)0.04 (10)

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 M31-004130.37

Plot to assess correlation between bands for M31-004130.37

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)
-0.55 | 0.82
R
(I|R)
2.27 | 1.27-2.89 | 0.08
I
(I|R)
0.47 | 0.970.67 | 0.720.59 | 0.54

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