Open a color composite thumbnail image of M31-004415.00M31-004415.00 (J004415.00+420156.2)


Target Notes

Open a color composite thumbnail image of M31-004415.00

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 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
56142.35 18.15± 0.08TOpen a thumbnail image of M31-004415.00 in filter V on MJD 56142.350
------------
56267.17-------- 17.15± 0.04TOpen a thumnail image of M31-004415.00 in filter R on MJD 56267.170
----
56537.22 18.28± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 56537.220
 18.55± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 56537.220
 17.11± 0.04-Open a thumnail image of M31-004415.00 in filter R on MJD 56537.220
----
56593.08 18.21± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 56593.080
---- 17.07± 0.04-Open a thumnail image of M31-004415.00 in filter R on MJD 56593.080
----
57282.18 18.20± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 57282.180
 18.55± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 57282.180
 17.10± 0.04-Open a thumnail image of M31-004415.00 in filter R on MJD 57282.180
----
57314.14 18.20± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 57314.140
-------- 17.14± 0.05-Open a thumnail image of M31-004415.00 in filter I on MJD 57314.140
57635.41 18.16± 0.07-Open a thumbnail image of M31-004415.00 in filter V on MJD 57635.410
 18.53± 0.08-Open a thumnail image of M31-004415.00 in filter B on MJD 57635.410
 17.03± 0.07-Open a thumnail image of M31-004415.00 in filter R on MJD 57635.410
 17.07± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 57635.410
57958.32 18.22± 0.07-Open a thumbnail image of M31-004415.00 in filter V on MJD 57958.320
 18.47± 0.09-Open a thumnail image of M31-004415.00 in filter B on MJD 57958.320
---- 17.23± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 57958.320
57963.28 18.22± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 57963.280
 18.54± 0.06-Open a thumnail image of M31-004415.00 in filter B on MJD 57963.280
 17.09± 0.06-Open a thumnail image of M31-004415.00 in filter R on MJD 57963.280
----
58045.07 18.18± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 58045.070
 18.48± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 58045.070
 17.03± 0.06-Open a thumnail image of M31-004415.00 in filter R on MJD 58045.070
----
58067.12 18.19± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58067.120
-------- 17.18± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 58067.120
58098.12 18.17± 0.07-Open a thumbnail image of M31-004415.00 in filter V on MJD 58098.120
 18.49± 0.06-Open a thumnail image of M31-004415.00 in filter B on MJD 58098.120
--------
58312.32 18.17± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58312.320
 18.54± 0.06-Open a thumnail image of M31-004415.00 in filter B on MJD 58312.320
 17.05± 0.06-Open a thumnail image of M31-004415.00 in filter R on MJD 58312.320
----
58316.28 18.21± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58316.280
-------- 17.15± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 58316.280
58366.15---- 18.59± 0.05TOpen a thumnail image of M31-004415.00 in filter B on MJD 58366.150
--------
58372.12 18.21± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58372.120
-------- 17.11± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 58372.120
58403.12 18.13± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58403.120
---- 17.02± 0.06-Open a thumnail image of M31-004415.00 in filter R on MJD 58403.120
----
58420.03 18.13± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58420.030
 18.50± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 58420.030
--------
58436.02 18.18± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58436.020
 18.47± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 58436.020
 17.04± 0.06-Open a thumnail image of M31-004415.00 in filter R on MJD 58436.020
----
58671.30 18.23± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 58671.300
 18.58± 0.06-Open a thumnail image of M31-004415.00 in filter B on MJD 58671.300
--------
58672.32 18.15± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58672.320
---- 17.02± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 58672.320
 17.07± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 58672.320
58695.31 18.16± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 58695.310
---- 17.09± 0.04-Open a thumnail image of M31-004415.00 in filter R on MJD 58695.310
 17.10± 0.05-Open a thumnail image of M31-004415.00 in filter I on MJD 58695.310
58696.28 18.21± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58696.280
---- 17.08± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 58696.280
Open a thumnail image of M31-004415.00 in filter R on MJD 58696.280
 17.17± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 58696.280
Open a thumnail image of M31-004415.00 in filter I on MJD 58696.280
58750.10 18.23± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 58750.100
 18.55± 0.04-Open a thumnail image of M31-004415.00 in filter B on MJD 58750.100
--------
58757.08 18.16± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58757.080
---- 17.06± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 58757.080
----
58779.07 18.18± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 58779.070
---- 17.03± 0.04-Open a thumnail image of M31-004415.00 in filter R on MJD 58779.070
----
58784.04 18.24± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 58784.040
 18.53± 0.04-Open a thumnail image of M31-004415.00 in filter B on MJD 58784.040
--------
58812.10 18.16± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 58812.100
---- 17.08± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 58812.100
----
58836.18 18.13± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 58836.180
-------- 17.12± 0.05-Open a thumnail image of M31-004415.00 in filter I on MJD 58836.180
59001.37 18.16± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 59001.370
---- 17.05± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 59001.370
----
59055.33 18.25± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 59055.330
 18.52± 0.04-Open a thumnail image of M31-004415.00 in filter B on MJD 59055.330
---- 17.09± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 59055.330
59077.22 18.22± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 59077.220
---- 17.05± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 59077.220
----
59131.05 18.22± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 59131.050
 18.55± 0.07-Open a thumnail image of M31-004415.00 in filter B on MJD 59131.050
--------
59166.07 18.21± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 59166.070
-------- 17.12± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 59166.070
59194.07 18.21± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 59194.070
---- 17.10± 0.04-Open a thumnail image of M31-004415.00 in filter R on MJD 59194.070
----
59376.36 18.22± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 59376.360
 18.62± 0.07-Open a thumnail image of M31-004415.00 in filter B on MJD 59376.360
--------
59409.38 18.15± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 59409.380
---- 17.05± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 59409.380
----
59442.29 18.21± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 59442.290
 18.59± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 59442.290
---- 17.10± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 59442.290
59467.14 18.10± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 59467.140
---- 17.07± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 59467.140
----
59522.07 18.17± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 59522.070
 18.56± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 59522.070
--------
59546.07 18.14± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 59546.070
-------- 17.05± 0.05-Open a thumnail image of M31-004415.00 in filter I on MJD 59546.070
59583.07 18.19± 0.05TOpen a thumbnail image of M31-004415.00 in filter V on MJD 59583.070
---- 17.10± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 59583.070
----
59753.34 18.14± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 59753.340
---- 17.07± 0.04-Open a thumnail image of M31-004415.00 in filter R on MJD 59753.340
----
59816.19 18.23± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 59816.190
 18.52± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 59816.190
--------
59848.08 18.13± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 59848.080
 18.49± 0.07-Open a thumnail image of M31-004415.00 in filter B on MJD 59848.080
--------
59851.07 18.12± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 59851.070
---- 17.05± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 59851.070
 17.12± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 59851.070
59879.07 18.15± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 59879.070
 18.39± 0.06-Open a thumnail image of M31-004415.00 in filter B on MJD 59879.070
--------
59905.22 18.22± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 59905.220
 18.48± 0.04-Open a thumnail image of M31-004415.00 in filter B on MJD 59905.220
---- 17.14± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 59905.220
60147.30 18.28± 0.05AOpen a thumbnail image of M31-004415.00 in filter V on MJD 60147.300
Open a thumbnail image of M31-004415.00 in filter V on MJD 60147.300
 18.54± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 60147.300
 17.04± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 60147.300
----
60152.39 18.20± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 60152.390
 18.54± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 60152.390
--------
60172.29 18.16± 0.05AOpen a thumbnail image of M31-004415.00 in filter V on MJD 60172.290
Open a thumbnail image of M31-004415.00 in filter V on MJD 60172.290
---- 17.08± 0.06AOpen a thumnail image of M31-004415.00 in filter R on MJD 60172.290
Open a thumnail image of M31-004415.00 in filter R on MJD 60172.290
 17.08± 0.06AOpen a thumnail image of M31-004415.00 in filter I on MJD 60172.290
Open a thumnail image of M31-004415.00 in filter I on MJD 60172.290
60202.14 18.23± 0.05AOpen a thumbnail image of M31-004415.00 in filter V on MJD 60202.140
Open a thumbnail image of M31-004415.00 in filter V on MJD 60202.140
 18.52± 0.05AOpen a thumnail image of M31-004415.00 in filter B on MJD 60202.140
Open a thumnail image of M31-004415.00 in filter B on MJD 60202.140
 17.19± 0.06AOpen a thumnail image of M31-004415.00 in filter R on MJD 60202.140
Open a thumnail image of M31-004415.00 in filter R on MJD 60202.140
----
60251.05 18.14± 0.05AOpen a thumbnail image of M31-004415.00 in filter V on MJD 60251.050
Open a thumbnail image of M31-004415.00 in filter V on MJD 60251.050
 18.53± 0.04-Open a thumnail image of M31-004415.00 in filter B on MJD 60251.050
---- 17.08± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 60251.050
60290.08 18.14± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 60290.080
-------- 17.07± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 60290.080
60292.09 18.16± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 60292.090
-------- 17.11± 0.08-Open a thumnail image of M31-004415.00 in filter I on MJD 60292.090
60469.37 18.18± 0.06-Open a thumbnail image of M31-004415.00 in filter V on MJD 60469.370
 18.42± 0.08-Open a thumnail image of M31-004415.00 in filter B on MJD 60469.370
--------
60498.28 18.10± 0.07-Open a thumbnail image of M31-004415.00 in filter V on MJD 60498.280
---- 17.01± 0.06-Open a thumnail image of M31-004415.00 in filter R on MJD 60498.280
----
60504.32 18.15± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 60504.320
 18.55± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 60504.320
--------
60529.25 18.16± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 60529.250
---- 17.06± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 60529.250
 17.00± 0.06-Open a thumnail image of M31-004415.00 in filter I on MJD 60529.250
60533.24 18.14± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 60533.240
-------- 16.97± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 60533.240
60555.18 18.16± 0.04-Open a thumbnail image of M31-004415.00 in filter V on MJD 60555.180
 18.47± 0.04-Open a thumnail image of M31-004415.00 in filter B on MJD 60555.180
 17.04± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 60555.180
----
60556.13 18.12± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 60556.130
 18.49± 0.06-Open a thumnail image of M31-004415.00 in filter B on MJD 60556.130
Open a thumnail image of M31-004415.00 in filter B on MJD 60556.130
 17.01± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 60556.130
Open a thumnail image of M31-004415.00 in filter R on MJD 60556.130
----
60594.03 18.18± 0.07-Open a thumbnail image of M31-004415.00 in filter V on MJD 60594.030
-------- 16.97± 0.07-Open a thumnail image of M31-004415.00 in filter I on MJD 60594.030
60595.05 18.18± 0.08-Open a thumbnail image of M31-004415.00 in filter V on MJD 60595.050
 18.44± 0.09-Open a thumnail image of M31-004415.00 in filter B on MJD 60595.050
 17.09± 0.06-Open a thumnail image of M31-004415.00 in filter R on MJD 60595.050
----
60651.06 18.16± 0.05-Open a thumbnail image of M31-004415.00 in filter V on MJD 60651.060
 18.47± 0.05-Open a thumnail image of M31-004415.00 in filter B on MJD 60651.060
 17.01± 0.05-Open a thumnail image of M31-004415.00 in filter R on MJD 60651.060
----
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

Open a plot of photometry for M31-004415.00Open a plot of color for M31-004415.00

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 [0.19 mag]B [0.23 mag]R [0.18 mag]
B [0.23 mag]0.17 (32)
R [0.18 mag]0.27 (32)0.11 (13)
I [0.27 mag]0.22 (23)0.45 (6)0.14 (7)

Magnitude-Magnitude Plots

The plots below are provided to check the values in the table above and also to show any non-linear correlations

Opens a plot to assess correlation between bands for M31-004415.00

Opens a plot to assess correlation between bands for M31-004415.00

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)		0.29 | 0.96
R
(I|R)		0.31 | 1.19-0.30 | 0.02
I
(I|R)		0.31 | 0.91-0.34 | 0.790.16 | 0.68

Back to catalog index

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

Generated on 2026-01-19 14:34:50 UT-5