Color composite thumbnail image of AF AndAF And (J004333.09+411210.4)


Target Notes

Color composite thumbnail image of AF_And

Classification: LBV

Four stars >5 magnitudes fainter within 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 17.40± 0.06TbAF_And in filter V on MJD 56142.330
AF_And in filter V on MJD 56142.330
------------
56267.15-------- 17.00± 0.05TbAF_And in filter R on MJD 56267.150
AF_And in filter R on MJD 56267.150
----
56490.38 16.95± 0.04TbAF_And in filter V on MJD 56490.380
------------
56536.26 16.93± 0.05bAF_And in filter V on MJD 56536.260
---- 16.69± 0.06bAF_And in filter R on MJD 56536.260
----
56537.18 17.01± 0.04AbAF_And in filter V on MJD 56537.180
AF_And in filter V on MJD 56537.180
 17.07± 0.05AbAF_And in filter B on MJD 56537.180
AF_And in filter B on MJD 56537.180
 16.84± 0.03bAF_And in filter R on MJD 56537.180
AF_And in filter R on MJD 56537.180
----
56915.16 17.30± 0.04bAF_And in filter V on MJD 56915.160
 17.34± 0.06bAF_And in filter B on MJD 56915.160
 17.08± 0.05bAF_And in filter R on MJD 56915.160
----
57227.34 17.15± 0.04bAF_And in filter V on MJD 57227.340
 17.19± 0.05bAF_And in filter B on MJD 57227.340
 16.91± 0.04bAF_And in filter R on MJD 57227.340
----
57310.10 16.99± 0.03bAF_And in filter V on MJD 57310.100
-------- 16.77± 0.07bAF_And in filter I on MJD 57310.100
57633.35 16.70± 0.05AbAF_And in filter V on MJD 57633.350
AF_And in filter V on MJD 57633.350
 16.81± 0.06AbAF_And in filter B on MJD 57633.350
AF_And in filter B on MJD 57633.350
 16.42± 0.05AbAF_And in filter R on MJD 57633.350
AF_And in filter R on MJD 57633.350
----
57635.35 16.72± 0.05bAF_And in filter V on MJD 57635.350
-------- 16.31± 0.06bAF_And in filter I on MJD 57635.350
57638.25 16.73± 0.04bAF_And in filter V on MJD 57638.250
-------- 16.31± 0.07bAF_And in filter I on MJD 57638.250
57888.07 16.13± 0.04bAF_And in filter V on MJD 57888.070
 16.21± 0.09bAF_And in filter B on MJD 57888.070
 15.74± 0.04bAF_And in filter R on MJD 57888.070
----
57928.32 16.18± 0.04bAF_And in filter V on MJD 57928.320
 16.31± 0.06bAF_And in filter B on MJD 57928.320
 15.84± 0.06bAF_And in filter R on MJD 57928.320
 15.71± 0.08bAF_And in filter I on MJD 57928.320
57958.26 16.20± 0.06bAF_And in filter V on MJD 57958.260
 16.33± 0.07bAF_And in filter B on MJD 57958.260
---- 15.75± 0.06bAF_And in filter I on MJD 57958.260
57963.26 16.22± 0.06bAF_And in filter V on MJD 57963.260
 16.33± 0.07bAF_And in filter B on MJD 57963.260
--------
57988.22 16.23± 0.07bAF_And in filter V on MJD 57988.220
 16.36± 0.07bAF_And in filter B on MJD 57988.220
---- 15.84± 0.06bAF_And in filter I on MJD 57988.220
58035.03 16.39± 0.04bAF_And in filter V on MJD 58035.030
---- 16.10± 0.04bAF_And in filter R on MJD 58035.030
----
58043.05 16.41± 0.05bAF_And in filter V on MJD 58043.050
 16.53± 0.05bAF_And in filter B on MJD 58043.050
 16.15± 0.04bAF_And in filter R on MJD 58043.050
----
58045.05 16.41± 0.05bAF_And in filter V on MJD 58045.050
-------- 15.92± 0.06bAF_And in filter I on MJD 58045.050
58067.10 16.36± 0.04bAF_And in filter V on MJD 58067.100
-------- 15.96± 0.06bAF_And in filter I on MJD 58067.100
58073.09 16.35± 0.06bAF_And in filter V on MJD 58073.090
 16.47± 0.07bAF_And in filter B on MJD 58073.090
--------
58077.08 16.31± 0.07bAF_And in filter V on MJD 58077.080
-------- 15.91± 0.07bAF_And in filter I on MJD 58077.080
58098.07 16.36± 0.06bAF_And in filter V on MJD 58098.070
 16.46± 0.07bAF_And in filter B on MJD 58098.070
--------
58103.08 16.30± 0.05bAF_And in filter V on MJD 58103.080
-------- 15.86± 0.07bAF_And in filter I on MJD 58103.080
58312.26 16.33± 0.06bAF_And in filter V on MJD 58312.260
 16.48± 0.07bAF_And in filter B on MJD 58312.260
 16.02± 0.06bAF_And in filter R on MJD 58312.260
----
58316.24 16.26± 0.06bAF_And in filter V on MJD 58316.240
-------- 15.82± 0.06bAF_And in filter I on MJD 58316.240
58339.26 16.23± 0.07bAF_And in filter V on MJD 58339.260
-------- 15.80± 0.07bAF_And in filter I on MJD 58339.260
58342.26 16.21± 0.04bAF_And in filter V on MJD 58342.260
 16.35± 0.06bAF_And in filter B on MJD 58342.260
--------
58366.11 16.26± 0.04bAF_And in filter V on MJD 58366.110
 16.39± 0.06bAF_And in filter B on MJD 58366.110
--------
58375.09 16.33± 0.04bAF_And in filter V on MJD 58375.090
---- 16.02± 0.04bAF_And in filter R on MJD 58375.090
----
58403.06 16.17± 0.03bAF_And in filter V on MJD 58403.060
-------- 15.67± 0.05bAF_And in filter I on MJD 58403.060
58420.01 16.01± 0.06bAF_And in filter V on MJD 58420.010
 16.14± 0.08bAF_And in filter B on MJD 58420.010
--------
58436.04 15.92± 0.04bAF_And in filter V on MJD 58436.040
 16.05± 0.06bAF_And in filter B on MJD 58436.040
 15.67± 0.04bAF_And in filter R on MJD 58436.040
----
58671.35 15.96± 0.03AbAF_And in filter V on MJD 58671.350
AF_And in filter V on MJD 58671.350
 16.14± 0.03bAF_And in filter B on MJD 58671.350
 15.69± 0.04bAF_And in filter R on MJD 58671.350
----
58695.41 16.01± 0.03bAF_And in filter V on MJD 58695.410
---- 15.74± 0.04bAF_And in filter R on MJD 58695.410
----
58750.11 16.10± 0.03bAF_And in filter V on MJD 58750.110
-------- 15.68± 0.05bAF_And in filter I on MJD 58750.110
58779.03 16.23± 0.03bAF_And in filter V on MJD 58779.030
 16.36± 0.03bAF_And in filter B on MJD 58779.030
--------
58812.16 16.32± 0.03bAF_And in filter V on MJD 58812.160
---- 16.06± 0.03bAF_And in filter R on MJD 58812.160
----
59000.37 16.64± 0.06bAF_And in filter V on MJD 59000.370
---- 16.32± 0.04bAF_And in filter R on MJD 59000.370
----
59055.29 16.79± 0.06bAF_And in filter V on MJD 59055.290
 16.90± 0.06bAF_And in filter B on MJD 59055.290
--------
59077.25 16.67± 0.07bAF_And in filter V on MJD 59077.250
---- 16.32± 0.05bAF_And in filter R on MJD 59077.250
 16.20± 0.06bAF_And in filter I on MJD 59077.250
59131.11 16.61± 0.05bAF_And in filter V on MJD 59131.110
 16.73± 0.05bAF_And in filter B on MJD 59131.110
--------
59166.14 16.44± 0.05bAF_And in filter V on MJD 59166.140
-------- 15.98± 0.06bAF_And in filter I on MJD 59166.140
59194.12 16.31± 0.03bAF_And in filter V on MJD 59194.120
---- 15.99± 0.05bAF_And in filter R on MJD 59194.120
----
59376.38 15.97± 0.07bAF_And in filter V on MJD 59376.380
 16.15± 0.06bAF_And in filter B on MJD 59376.380
--------
59409.33 15.86± 0.05AbAF_And in filter V on MJD 59409.330
AF_And in filter V on MJD 59409.330
---- 15.55± 0.05bAF_And in filter R on MJD 59409.330
----
59442.36 15.85± 0.06bAF_And in filter V on MJD 59442.360
 16.04± 0.07bAF_And in filter B on MJD 59442.360
---- 15.34± 0.05bAF_And in filter I on MJD 59442.360
59467.13 15.88± 0.06bAF_And in filter V on MJD 59467.130
---- 15.62± 0.03bAF_And in filter R on MJD 59467.130
----
59522.10 16.09± 0.04bAF_And in filter V on MJD 59522.100
 16.26± 0.05bAF_And in filter B on MJD 59522.100
--------
59546.13 16.25± 0.03bAF_And in filter V on MJD 59546.130
-------- 15.77± 0.06bAF_And in filter I on MJD 59546.130
59583.12 16.01± 0.05bAF_And in filter V on MJD 59583.120
---- 15.76± 0.04bAF_And in filter R on MJD 59583.120
----
59739.38 16.28± 0.05bAF_And in filter V on MJD 59739.380
 16.44± 0.06bAF_And in filter B on MJD 59739.380
 16.00± 0.05bAF_And in filter R on MJD 59739.380
----
59816.16 15.96± 0.06bAF_And in filter V on MJD 59816.160
---- 15.71± 0.04bAF_And in filter R on MJD 59816.160
----
59848.09 15.89± 0.04bAF_And in filter V on MJD 59848.090
-------- 15.43± 0.05bAF_And in filter I on MJD 59848.090
59879.05 15.93± 0.05bAF_And in filter V on MJD 59879.050
 16.09± 0.06bAF_And in filter B on MJD 59879.050
--------
59905.10 15.97± 0.03bAF_And in filter V on MJD 59905.100
---- 15.68± 0.03bAF_And in filter R on MJD 59905.100
 15.50± 0.04bAF_And in filter I on MJD 59905.100
60147.27 15.97± 0.07bAF_And in filter V on MJD 60147.270
---- 15.70± 0.07bAF_And in filter R on MJD 60147.270
----
60172.21 15.92± 0.07bAF_And in filter V on MJD 60172.210
-------- 15.48± 0.10bAF_And in filter I on MJD 60172.210
60201.09 15.91± 0.07bAF_And in filter V on MJD 60201.090
---- 15.66± 0.07bAF_And in filter R on MJD 60201.090
----
60251.03 15.95± 0.06bAF_And in filter V on MJD 60251.030
 16.09± 0.07bAF_And in filter B on MJD 60251.030
--------
60290.06 15.79± 0.07bAF_And in filter V on MJD 60290.060
-------- 15.36± 0.09bAF_And in filter I on MJD 60290.060
60469.38 16.09± 0.07bAF_And in filter V on MJD 60469.380
---- 15.82± 0.08bAF_And in filter R on MJD 60469.380
----
60504.34 16.10± 0.07bAF_And in filter V on MJD 60504.340
 16.26± 0.08bAF_And in filter B on MJD 60504.340
--------
60533.25 16.12± 0.07TbAF_And in filter V on MJD 60533.250
------------
60555.16 16.14± 0.06bAF_And in filter V on MJD 60555.160
---- 15.85± 0.07bAF_And in filter R on MJD 60555.160
 15.68± 0.09bAF_And in filter I on MJD 60555.160
60594.07 16.29± 0.07bAF_And in filter V on MJD 60594.070
 16.46± 0.07bAF_And in filter B on MJD 60594.070
 16.01± 0.07bAF_And in filter R on MJD 60594.070
----
60651.11 16.18± 0.06bAF_And in filter V on MJD 60651.110
-------- 15.73± 0.09bAF_And 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 AF_AndPlot of color for AF_And

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 [1.61 mag]B [1.30 mag]R [1.53 mag]
B [1.30 mag]1.00 (29)
R [1.53 mag]0.99 (29)0.99 (12)
I [1.43 mag]0.98 (24)0.98 (4)1.00 (4)

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 AF_And

Plot to assess correlation between bands for AF_And

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)		53.00 | 0.73
R
(I|R)		87.16 | 0.9685.01 | 0.53
I
(I|R)		34.61 | 1.28--- | --- --- | ----

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