Color composite thumbnail image of M31-004337.16M31-004337.16 (J004337.16+412151.0)


Target Notes

Color composite thumbnail image of M31-004337.16

Classification: YSG

Seven LGGS stars >4 magniutdes fainter with 5 arcseconds.

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
56142.33 17.14± 0.06TbM31-004337.16 in filter V on MJD 56142.330
------------
56267.14-------- 16.56± 0.05TbM31-004337.16 in filter R on MJD 56267.140
----
56490.38 17.06± 0.04TbM31-004337.16 in filter V on MJD 56490.380
------------
56536.26 16.99± 0.05bM31-004337.16 in filter V on MJD 56536.260
---- 16.52± 0.06bM31-004337.16 in filter R on MJD 56536.260
----
56537.20 17.03± 0.05bM31-004337.16 in filter V on MJD 56537.200
 17.91± 0.07bM31-004337.16 in filter B on MJD 56537.200
--------
56599.08 16.93± 0.03bM31-004337.16 in filter V on MJD 56599.080
 17.84± 0.06bM31-004337.16 in filter B on MJD 56599.080
 16.43± 0.03bM31-004337.16 in filter R on MJD 56599.080
----
56915.16 17.05± 0.03bM31-004337.16 in filter V on MJD 56915.160
 17.99± 0.06bM31-004337.16 in filter B on MJD 56915.160
 16.54± 0.04bM31-004337.16 in filter R on MJD 56915.160
----
57227.34 16.95± 0.04bM31-004337.16 in filter V on MJD 57227.340
 17.97± 0.05bM31-004337.16 in filter B on MJD 57227.340
 16.41± 0.04bM31-004337.16 in filter R on MJD 57227.340
----
57310.10 16.88± 0.03bM31-004337.16 in filter V on MJD 57310.100
-------- 16.09± 0.06bM31-004337.16 in filter I on MJD 57310.100
57633.33 17.00± 0.06bM31-004337.16 in filter V on MJD 57633.330
 18.00± 0.07bM31-004337.16 in filter B on MJD 57633.330
 16.51± 0.06bM31-004337.16 in filter R on MJD 57633.330
----
57635.35 17.00± 0.05bM31-004337.16 in filter V on MJD 57635.350
-------- 16.12± 0.06bM31-004337.16 in filter I on MJD 57635.350
57887.90 16.92± 0.07bM31-004337.16 in filter V on MJD 57887.900
 17.86± 0.18bM31-004337.16 in filter B on MJD 57887.900
--------
57928.32 16.97± 0.04bM31-004337.16 in filter V on MJD 57928.320
 17.86± 0.07bM31-004337.16 in filter B on MJD 57928.320
 16.47± 0.06bM31-004337.16 in filter R on MJD 57928.320
 16.12± 0.08bM31-004337.16 in filter I on MJD 57928.320
57958.26 16.97± 0.06bM31-004337.16 in filter V on MJD 57958.260
 17.86± 0.08bM31-004337.16 in filter B on MJD 57958.260
---- 16.08± 0.06-M31-004337.16 in filter I on MJD 57958.260
57963.26 16.97± 0.06bM31-004337.16 in filter V on MJD 57963.260
 17.92± 0.07bM31-004337.16 in filter B on MJD 57963.260
--------
57988.22 16.98± 0.07bM31-004337.16 in filter V on MJD 57988.220
 17.90± 0.08bM31-004337.16 in filter B on MJD 57988.220
---- 16.07± 0.06bM31-004337.16 in filter I on MJD 57988.220
58035.03 16.92± 0.04bM31-004337.16 in filter V on MJD 58035.030
---- 16.47± 0.04bM31-004337.16 in filter R on MJD 58035.030
----
58043.05 16.91± 0.05bM31-004337.16 in filter V on MJD 58043.050
 17.78± 0.06bM31-004337.16 in filter B on MJD 58043.050
 16.43± 0.04bM31-004337.16 in filter R on MJD 58043.050
----
58045.05 16.91± 0.05bM31-004337.16 in filter V on MJD 58045.050
-------- 16.09± 0.06bM31-004337.16 in filter I on MJD 58045.050
58067.10 16.96± 0.05bM31-004337.16 in filter V on MJD 58067.100
-------- 16.07± 0.06bM31-004337.16 in filter I on MJD 58067.100
58073.09 16.97± 0.06bM31-004337.16 in filter V on MJD 58073.090
 17.99± 0.08bM31-004337.16 in filter B on MJD 58073.090
--------
58077.08 17.02± 0.07bM31-004337.16 in filter V on MJD 58077.080
-------- 16.06± 0.07bM31-004337.16 in filter I on MJD 58077.080
58098.07 17.07± 0.06bM31-004337.16 in filter V on MJD 58098.070
 18.06± 0.07bM31-004337.16 in filter B on MJD 58098.070
--------
58103.08 17.11± 0.05bM31-004337.16 in filter V on MJD 58103.080
-------- 16.18± 0.07bM31-004337.16 in filter I on MJD 58103.080
58312.26 17.06± 0.06bM31-004337.16 in filter V on MJD 58312.260
 18.14± 0.08bM31-004337.16 in filter B on MJD 58312.260
 16.54± 0.06bM31-004337.16 in filter R on MJD 58312.260
----
58316.24 17.07± 0.06bM31-004337.16 in filter V on MJD 58316.240
-------- 16.15± 0.06bM31-004337.16 in filter I on MJD 58316.240
58339.26 16.96± 0.07bM31-004337.16 in filter V on MJD 58339.260
-------- 16.07± 0.07bM31-004337.16 in filter I on MJD 58339.260
58342.26 16.98± 0.04bM31-004337.16 in filter V on MJD 58342.260
 17.95± 0.07bM31-004337.16 in filter B on MJD 58342.260
--------
58366.11 16.88± 0.04bM31-004337.16 in filter V on MJD 58366.110
 17.65± 0.06bM31-004337.16 in filter B on MJD 58366.110
--------
58375.09 16.83± 0.05bM31-004337.16 in filter V on MJD 58375.090
---- 16.32± 0.04bM31-004337.16 in filter R on MJD 58375.090
----
58403.06 16.88± 0.03bM31-004337.16 in filter V on MJD 58403.060
-------- 16.03± 0.05bM31-004337.16 in filter I on MJD 58403.060
58420.01 16.95± 0.06bM31-004337.16 in filter V on MJD 58420.010
 17.84± 0.08bM31-004337.16 in filter B on MJD 58420.010
--------
58436.04 16.97± 0.04bM31-004337.16 in filter V on MJD 58436.040
 17.95± 0.06bM31-004337.16 in filter B on MJD 58436.040
 16.44± 0.04bM31-004337.16 in filter R on MJD 58436.040
----
58671.29 16.75± 0.07bM31-004337.16 in filter V on MJD 58671.290
 17.60± 0.06bM31-004337.16 in filter B on MJD 58671.290
--------
58673.29 16.76± 0.08bM31-004337.16 in filter V on MJD 58673.290
---- 16.27± 0.07bM31-004337.16 in filter R on MJD 58673.290
 15.86± 0.08bM31-004337.16 in filter I on MJD 58673.290
58696.30 16.87± 0.07bM31-004337.16 in filter V on MJD 58696.300
 17.78± 0.07bM31-004337.16 in filter B on MJD 58696.300
 16.35± 0.08bM31-004337.16 in filter R on MJD 58696.300
----
58779.05 17.02± 0.06bM31-004337.16 in filter V on MJD 58779.050
---- 16.52± 0.03bM31-004337.16 in filter R on MJD 58779.050
----
58812.07 16.87± 0.08bM31-004337.16 in filter V on MJD 58812.070
---- 16.39± 0.08bM31-004337.16 in filter R on MJD 58812.070
----
59000.38 17.06± 0.06AbM31-004337.16 in filter V on MJD 59000.380
M31-004337.16 in filter V on MJD 59000.380
---- 16.56± 0.08AbM31-004337.16 in filter R on MJD 59000.380
M31-004337.16 in filter R on MJD 59000.380
----
59055.31 16.86± 0.07bM31-004337.16 in filter V on MJD 59055.310
---- 16.39± 0.08bM31-004337.16 in filter R on MJD 59055.310
----
59077.20 16.85± 0.07bM31-004337.16 in filter V on MJD 59077.200
 17.76± 0.07bM31-004337.16 in filter B on MJD 59077.200
 16.40± 0.07bM31-004337.16 in filter R on MJD 59077.200
 16.01± 0.10bM31-004337.16 in filter I on MJD 59077.200
59131.09 16.91± 0.07bM31-004337.16 in filter V on MJD 59131.090
---- 16.44± 0.07bM31-004337.16 in filter R on MJD 59131.090
----
59166.12 16.94± 0.07bM31-004337.16 in filter V on MJD 59166.120
-------- 16.05± 0.09bM31-004337.16 in filter I on MJD 59166.120
59194.11 17.04± 0.07bM31-004337.16 in filter V on MJD 59194.110
 17.94± 0.07bM31-004337.16 in filter B on MJD 59194.110
--------
59376.35 16.93± 0.07bM31-004337.16 in filter V on MJD 59376.350
 17.79± 0.07bM31-004337.16 in filter B on MJD 59376.350
--------
59409.37 16.93± 0.07bM31-004337.16 in filter V on MJD 59409.370
---- 16.43± 0.07bM31-004337.16 in filter R on MJD 59409.370
----
59441.26 17.12± 0.07bM31-004337.16 in filter V on MJD 59441.260
 18.13± 0.08bM31-004337.16 in filter B on MJD 59441.260
---- 16.20± 0.09bM31-004337.16 in filter I on MJD 59441.260
59467.11 17.06± 0.07bM31-004337.16 in filter V on MJD 59467.110
---- 16.64± 0.06bM31-004337.16 in filter R on MJD 59467.110
----
59522.04 16.80± 0.07bM31-004337.16 in filter V on MJD 59522.040
 17.70± 0.07bM31-004337.16 in filter B on MJD 59522.040
---- 15.91± 0.11bM31-004337.16 in filter I on MJD 59522.040
59546.05 16.90± 0.07bM31-004337.16 in filter V on MJD 59546.050
---- 16.41± 0.07bM31-004337.16 in filter R on MJD 59546.050
----
59583.10 16.96± 0.07bM31-004337.16 in filter V on MJD 59583.100
 17.91± 0.07bM31-004337.16 in filter B on MJD 59583.100
--------
59739.36 16.75± 0.07bM31-004337.16 in filter V on MJD 59739.360
 17.58± 0.07bM31-004337.16 in filter B on MJD 59739.360
 16.32± 0.07bM31-004337.16 in filter R on MJD 59739.360
----
59816.14 16.97± 0.07bM31-004337.16 in filter V on MJD 59816.140
-------- 16.06± 0.07bM31-004337.16 in filter I on MJD 59816.140
59851.09 16.92± 0.07bM31-004337.16 in filter V on MJD 59851.090
 17.81± 0.07bM31-004337.16 in filter B on MJD 59851.090
 16.47± 0.07bM31-004337.16 in filter R on MJD 59851.090
----
59879.03 16.93± 0.07bM31-004337.16 in filter V on MJD 59879.030
-------- 16.04± 0.07bM31-004337.16 in filter I on MJD 59879.030
59905.07 16.90± 0.07bM31-004337.16 in filter V on MJD 59905.070
 17.77± 0.07bM31-004337.16 in filter B on MJD 59905.070
 16.40± 0.07bM31-004337.16 in filter R on MJD 59905.070
----
60147.26 16.82± 0.07AbM31-004337.16 in filter V on MJD 60147.260
M31-004337.16 in filter V on MJD 60147.260
 17.60± 0.07bM31-004337.16 in filter B on MJD 60147.260
 16.41± 0.07bM31-004337.16 in filter R on MJD 60147.260
----
60172.20 16.92± 0.07AbM31-004337.16 in filter V on MJD 60172.200
M31-004337.16 in filter V on MJD 60172.200
 17.75± 0.07bM31-004337.16 in filter B on MJD 60172.200
 16.51± 0.05AbM31-004337.16 in filter R on MJD 60172.200
M31-004337.16 in filter R on MJD 60172.200
 16.08± 0.07AbM31-004337.16 in filter I on MJD 60172.200
M31-004337.16 in filter I on MJD 60172.200
M31-004337.16 in filter I on MJD 60172.200
60201.09 17.13± 0.07bM31-004337.16 in filter V on MJD 60201.090
---- 16.61± 0.07bM31-004337.16 in filter R on MJD 60201.090
----
60202.10 17.03± 0.06bM31-004337.16 in filter V on MJD 60202.100
 18.10± 0.08bM31-004337.16 in filter B on MJD 60202.100
--------
60251.02 17.13± 0.07AbM31-004337.16 in filter V on MJD 60251.020
M31-004337.16 in filter V on MJD 60251.020
 18.10± 0.08bM31-004337.16 in filter B on MJD 60251.020
---- 16.20± 0.07bM31-004337.16 in filter I on MJD 60251.020
60261.08 17.12± 0.04bM31-004337.16 in filter V on MJD 60261.080
 18.08± 0.04bM31-004337.16 in filter B on MJD 60261.080
--------
60290.08 16.93± 0.07AbM31-004337.16 in filter V on MJD 60290.080
M31-004337.16 in filter V on MJD 60290.080
---- 16.45± 0.07bM31-004337.16 in filter R on MJD 60290.080
 16.10± 0.09bM31-004337.16 in filter I on MJD 60290.080
60469.36 16.95± 0.07AbM31-004337.16 in filter V on MJD 60469.360
M31-004337.16 in filter V on MJD 60469.360
 17.82± 0.08bM31-004337.16 in filter B on MJD 60469.360
 16.47± 0.08bM31-004337.16 in filter R on MJD 60469.360
----
60504.32 16.87± 0.07AbM31-004337.16 in filter V on MJD 60504.320
M31-004337.16 in filter V on MJD 60504.320
 17.87± 0.08bM31-004337.16 in filter B on MJD 60504.320
 16.34± 0.06bM31-004337.16 in filter R on MJD 60504.320
----
60529.26 16.93± 0.06AbM31-004337.16 in filter V on MJD 60529.260
M31-004337.16 in filter V on MJD 60529.260
---- 16.46± 0.04bM31-004337.16 in filter R on MJD 60529.260
 16.00± 0.05AbM31-004337.16 in filter I on MJD 60529.260
M31-004337.16 in filter I on MJD 60529.260
60533.25 16.92± 0.07TbM31-004337.16 in filter V on MJD 60533.250
------------
60555.14 16.84± 0.06AbM31-004337.16 in filter V on MJD 60555.140
M31-004337.16 in filter V on MJD 60555.140
 17.68± 0.06bM31-004337.16 in filter B on MJD 60555.140
 16.36± 0.06AbM31-004337.16 in filter R on MJD 60555.140
M31-004337.16 in filter R on MJD 60555.140
 15.98± 0.09bM31-004337.16 in filter I on MJD 60555.140
60587.13 16.86± 0.05AbM31-004337.16 in filter V on MJD 60587.130
M31-004337.16 in filter V on MJD 60587.130
---- 16.35± 0.03bM31-004337.16 in filter R on MJD 60587.130
 16.00± 0.07bM31-004337.16 in filter I on MJD 60587.130
60594.07 16.91± 0.07bM31-004337.16 in filter V on MJD 60594.070
 17.78± 0.08bM31-004337.16 in filter B on MJD 60594.070
 16.41± 0.07bM31-004337.16 in filter R on MJD 60594.070
----
60649.08 16.87± 0.07bM31-004337.16 in filter V on MJD 60649.080
 17.81± 0.07bM31-004337.16 in filter B on MJD 60649.080
 16.38± 0.07bM31-004337.16 in filter R on MJD 60649.080
----
60651.11 16.97± 0.06bM31-004337.16 in filter V on MJD 60651.110
-------- 16.06± 0.09bM31-004337.16 in filter I on MJD 60651.110
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 M31-004337.16Plot of color for M31-004337.16

Key for Plot Variability Photometry Table Target Notes

Variability

Plot/Graph Photometry Table Target Notes

It is very 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 [0.40 mag]B [0.56 mag]R [0.37 mag]
B [0.56 mag]0.85 (39)
R [0.37 mag]0.85 (36)0.41 (20)
I [0.34 mag]0.79 (26)0.80 (9)0.76 (8)

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 M31-004337.16

Plot to assess correlation between bands for M31-004337.16

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)		3.11 | 1.43
R
(I|R)		1.69 | 0.98-2.45 | 0.06
I
(I|R)		1.26 | 1.632.08 | 2.051.04 | 1.60

Back to catalog index

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

Generated on 2025-08-04 15:53:14 UT-5