M31/M33 Catalog: Photometry for M31-004246.85


Open a color composite thumbnail image of M31-004246.85M31-004246.85 (J004246.86+413336.4)


Target Notes

Open a color composite thumbnail image of M31-004246.85

Classification: -

No 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
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
56142.31 17.61± 0.06TOpen a thumbnail image of M31-004246.85 in filter V on MJD 56142.310
------------
56267.16-------- 17.12± 0.03TOpen a thumnail image of M31-004246.85 in filter R on MJD 56267.160
----
56490.35 17.66± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 56490.350
 18.20± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 56490.350
--------
56536.22 17.59± 0.08-Open a thumbnail image of M31-004246.85 in filter V on MJD 56536.220
---- 17.16± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 56536.220
----
57633.25 17.81± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 57633.250
 18.50± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 57633.250
 17.28± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 57633.250
----
57635.36 17.79± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 57635.360
-------- 16.84± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 57635.360
57958.35 17.73± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 57958.350
---- 17.18± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 57958.350
 16.79± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 57958.350
57963.38 17.76± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 57963.380
 18.27± 0.04-Open a thumnail image of M31-004246.85 in filter B on MJD 57963.380
--------
57988.34 17.62± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 57988.340
 18.26± 0.04-Open a thumnail image of M31-004246.85 in filter B on MJD 57988.340
 17.07± 0.03-Open a thumnail image of M31-004246.85 in filter R on MJD 57988.340
 16.72± 0.03-Open a thumnail image of M31-004246.85 in filter I on MJD 57988.340
58067.17 17.71± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 58067.170
-------- 16.91± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 58067.170
58077.11 17.59± 0.06-Open a thumbnail image of M31-004246.85 in filter V on MJD 58077.110
 18.24± 0.06-Open a thumnail image of M31-004246.85 in filter B on MJD 58077.110
 17.08± 0.05-Open a thumnail image of M31-004246.85 in filter R on MJD 58077.110
 16.75± 0.06-Open a thumnail image of M31-004246.85 in filter I on MJD 58077.110
58312.35 17.72± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 58312.350
 18.37± 0.04-Open a thumnail image of M31-004246.85 in filter B on MJD 58312.350
--------
58339.35 17.65± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 58339.350
 18.29± 0.04-Open a thumnail image of M31-004246.85 in filter B on MJD 58339.350
 17.12± 0.03-Open a thumnail image of M31-004246.85 in filter R on MJD 58339.350
----
58341.28 17.76± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 58341.280
---- 17.26± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 58341.280
 16.85± 0.05-Open a thumnail image of M31-004246.85 in filter I on MJD 58341.280
58342.31 17.66± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 58342.310
-------- 16.66± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 58342.310
Open a thumnail image of M31-004246.85 in filter I on MJD 58342.310
58372.15 17.61± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 58372.150
-------- 16.65± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 58372.150
58671.33 17.66± 0.06-Open a thumbnail image of M31-004246.85 in filter V on MJD 58671.330
 18.23± 0.07-Open a thumnail image of M31-004246.85 in filter B on MJD 58671.330
--------
58696.25 17.62± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 58696.250
 18.27± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 58696.250
 17.10± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 58696.250
 16.71± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 58696.250
58757.10 17.66± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 58757.100
---- 17.13± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 58757.100
----
58784.07 17.63± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 58784.070
 18.36± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 58784.070
--------
58812.12 17.67± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 58812.120
-------- 16.75± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 58812.120
59019.35 17.67± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 59019.350
 18.35± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 59019.350
--------
59059.34 17.69± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 59059.340
---- 17.11± 0.03-Open a thumnail image of M31-004246.85 in filter R on MJD 59059.340
----
59077.17 17.63± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 59077.170
-------- 16.71± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 59077.170
59082.22 17.65± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 59082.220
 18.30± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 59082.220
--------
59136.09 17.55± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 59136.090
 18.09± 0.05XOpen a thumnail image of M31-004246.85 in filter B on MJD 59136.090
 17.05± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 59136.090
----
59166.10 17.64± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 59166.100
-------- 16.78± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 59166.100
59379.36 17.38± 0.06XOpen a thumbnail image of M31-004246.85 in filter V on MJD 59379.360
---- 16.93± 0.04XOpen a thumnail image of M31-004246.85 in filter R on MJD 59379.360
----
59442.24 17.53± 0.05XOpen a thumbnail image of M31-004246.85 in filter V on MJD 59442.240
 18.13± 0.05XOpen a thumnail image of M31-004246.85 in filter B on MJD 59442.240
---- 16.59± 0.04XOpen a thumnail image of M31-004246.85 in filter I on MJD 59442.240
59483.09 17.64± 0.07-Open a thumbnail image of M31-004246.85 in filter V on MJD 59483.090
---- 16.99± 0.04XOpen a thumnail image of M31-004246.85 in filter R on MJD 59483.090
----
59525.08 17.68± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 59525.080
 18.31± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 59525.080
--------
59546.11 17.66± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 59546.110
-------- 16.74± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 59546.110
59753.38 17.65± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 59753.380
 18.29± 0.08-Open a thumnail image of M31-004246.85 in filter B on MJD 59753.380
 17.10± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 59753.380
----
59823.12 17.64± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 59823.120
-------- 16.63± 0.05-Open a thumnail image of M31-004246.85 in filter I on MJD 59823.120
59854.11 17.45± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 59854.110
 18.04± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 59854.110
 17.51± 0.10XOpen a thumnail image of M31-004246.85 in filter R on MJD 59854.110
----
59905.15 17.61± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 59905.150
 18.34± 0.07XOpen a thumnail image of M31-004246.85 in filter B on MJD 59905.150
 17.09± 0.04XOpen a thumnail image of M31-004246.85 in filter R on MJD 59905.150
 16.78± 0.06-Open a thumnail image of M31-004246.85 in filter I on MJD 59905.150
60147.33 17.65± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 60147.330
 18.21± 0.06XOpen a thumnail image of M31-004246.85 in filter B on MJD 60147.330
--------
60172.24 17.70± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 60172.240
---- 17.14± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 60172.240
 16.73± 0.05-Open a thumnail image of M31-004246.85 in filter I on MJD 60172.240
60205.09 17.63± 0.06-Open a thumbnail image of M31-004246.85 in filter V on MJD 60205.090
 18.19± 0.06-Open a thumnail image of M31-004246.85 in filter B on MJD 60205.090
 17.12± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 60205.090
----
60261.08 17.71± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 60261.080
 18.28± 0.05-Open a thumnail image of M31-004246.85 in filter B on MJD 60261.080
--------
60504.29 17.61± 0.06-Open a thumbnail image of M31-004246.85 in filter V on MJD 60504.290
 18.25± 0.06-Open a thumnail image of M31-004246.85 in filter B on MJD 60504.290
--------
60529.28 17.69± 0.04-Open a thumbnail image of M31-004246.85 in filter V on MJD 60529.280
---- 17.14± 0.04-Open a thumnail image of M31-004246.85 in filter R on MJD 60529.280
 16.68± 0.05-Open a thumnail image of M31-004246.85 in filter I on MJD 60529.280
60562.11 17.65± 0.06-Open a thumbnail image of M31-004246.85 in filter V on MJD 60562.110
 18.20± 0.06-Open a thumnail image of M31-004246.85 in filter B on MJD 60562.110
---- 16.60± 0.04-Open a thumnail image of M31-004246.85 in filter I on MJD 60562.110
60587.16 17.57± 0.05-Open a thumbnail image of M31-004246.85 in filter V on MJD 60587.160
---- 17.02± 0.04XOpen a thumnail image of M31-004246.85 in filter R on MJD 60587.160
----
60886.25 17.58± 0.07-Open a thumbnail image of M31-004246.85 in filter V on MJD 60886.250
 18.35± 0.09-Open a thumnail image of M31-004246.85 in filter B on MJD 60886.250
--------
61055.09 17.72± 0.07-Open a thumbnail image of M31-004246.85 in filter V on MJD 61055.090
---- 17.15± 0.08-Open a thumnail image of M31-004246.85 in filter R on MJD 61055.090
----
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 M31-004246.85Open a plot of color for M31-004246.85

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 [0.36 mag]B [0.45 mag]R [0.23 mag]
B [0.45 mag]0.51 (20)
R [0.23 mag]0.71 (16)0.78 (7)
I [0.31 mag]0.30 (18)0.62 (4)0.61 (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 M31-004246.85

Opens a plot to assess correlation between bands for M31-004246.85

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)		1.95 | 1.16
R
(I|R)		1.88 | 0.992.26 | 0.04
I
(I|R)		1.39 | 0.70--- | --- 1.52 | 1.22

Back to catalog index

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

Generated on 2026-10-12 15:55:15 UT-5