Color composite thumbnail image of M31-004511.60M31-004511.60 (J004511.59+413716.7)



Target Notes

Color composite thumbnail image of M31-004511.60

Classification: HII

No blend concerns in BV. Resolved in I from LGGS J004511.40+413717.8 which is at least two magnitudes brighter than the target in that band. May be some confusion with LGGS J004511.40+413717.8 in R.

Find In Simbad Query LGGS Massey (2016) at VizieR Query CAT WISE (Eisenhardt et al., 2020) at VizieR Query Gaia EDR3 (2020) 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
56142.32 18.76± 0.11TM31-004511.60 in filter V on MJD  56142.320
------------
56267.15-------- 18.10± 0.06TbM31-004511.60 in filter R on MJD  56267.150
----
56490.37 18.81± 0.07-M31-004511.60 in filter V on MJD  56490.370
18.80± 0.07-M31-004511.60 in filter B on MJD  56490.370
--------
56536.24 18.81± 0.07-M31-004511.60 in filter V on MJD  56536.240
---- 18.08± 0.07XM31-004511.60 in filter R on MJD  56536.240
----
56915.13 18.78± 0.07-M31-004511.60 in filter V on MJD  56915.130
19.07± 0.11-M31-004511.60 in filter B on MJD  56915.130
17.95± 0.05XM31-004511.60 in filter R on MJD  56915.130
----
57227.31 18.59± 0.05-M31-004511.60 in filter V on MJD  57227.310
18.63± 0.05-M31-004511.60 in filter B on MJD  57227.310
17.85± 0.06XM31-004511.60 in filter R on MJD  57227.310
----
57310.08 18.21± 0.05TXM31-004511.60 in filter V on MJD  57310.080
--------> 18.43-M31-004511.60 in filter I on MJD  57310.080
57633.32 18.63± 0.06AM31-004511.60 in filter V on MJD  57633.320
M31-004511.60 in filter V on MJD  57633.320
18.66± 0.06AM31-004511.60 in filter B on MJD  57633.320
M31-004511.60 in filter B on MJD  57633.320
17.90± 0.06AXM31-004511.60 in filter R on MJD  57633.320
M31-004511.60 in filter R on MJD  57633.320
----
57638.28 18.68± 0.06AM31-004511.60 in filter V on MJD  57638.280
M31-004511.60 in filter V on MJD  57638.280
-------- 18.92± 0.12AbM31-004511.60 in filter I on MJD  57638.280
M31-004511.60 in filter I on MJD  57638.280
57928.37 18.55± 0.06-M31-004511.60 in filter V on MJD  57928.370
18.68± 0.08-M31-004511.60 in filter B on MJD  57928.370
17.92± 0.06XM31-004511.60 in filter R on MJD  57928.370
> 18.47-M31-004511.60 in filter I on MJD  57928.370
57958.29 18.85± 0.07-M31-004511.60 in filter V on MJD  57958.290
18.70± 0.07-M31-004511.60 in filter B on MJD  57958.290
----> 18.15-M31-004511.60 in filter I on MJD  57958.290
58043.06 18.66± 0.06-M31-004511.60 in filter V on MJD  58043.060
18.73± 0.09-M31-004511.60 in filter B on MJD  58043.060
----> 18.49-M31-004511.60 in filter I on MJD  58043.060
58098.09 18.57± 0.06-M31-004511.60 in filter V on MJD  58098.090
18.73± 0.05-M31-004511.60 in filter B on MJD  58098.090
18.37± 0.07AbM31-004511.60 in filter R on MJD  58098.090
M31-004511.60 in filter R on MJD  58098.090
----
58312.29 18.73± 0.06-M31-004511.60 in filter V on MJD  58312.290
18.96± 0.07-M31-004511.60 in filter B on MJD  58312.290
17.92± 0.06-M31-004511.60 in filter R on MJD  58312.290
----
58316.26 18.61± 0.06-M31-004511.60 in filter V on MJD  58316.260
-------- 18.60± 0.15-M31-004511.60 in filter I on MJD  58316.260
58341.23 18.77± 0.09-M31-004511.60 in filter V on MJD  58341.230
18.71± 0.09-M31-004511.60 in filter B on MJD  58341.230
--------
58366.12 18.65± 0.06-M31-004511.60 in filter V on MJD  58366.120
18.62± 0.07-M31-004511.60 in filter B on MJD  58366.120
--------
58375.12 18.77± 0.07-M31-004511.60 in filter V on MJD  58375.120
---- 17.99± 0.04-M31-004511.60 in filter R on MJD  58375.120
----
58403.08 18.52± 0.06TM31-004511.60 in filter V on MJD  58403.080
--------> 18.39-M31-004511.60 in filter I on MJD  58403.080
58671.38 18.72± 0.06-M31-004511.60 in filter V on MJD  58671.380
18.87± 0.08-M31-004511.60 in filter B on MJD  58671.380
--------
58695.34 18.65± 0.06-M31-004511.60 in filter V on MJD  58695.340
---- 17.95± 0.06-M31-004511.60 in filter R on MJD  58695.340
> 18.47-M31-004511.60 in filter I on MJD  58695.340
58750.13 18.58± 0.06-M31-004511.60 in filter V on MJD  58750.130
18.68± 0.05-M31-004511.60 in filter B on MJD  58750.130
--------
58779.10 18.45± 0.06-M31-004511.60 in filter V on MJD  58779.100
---- 17.82± 0.06-M31-004511.60 in filter R on MJD  58779.100
----
58812.08 18.68± 0.06-M31-004511.60 in filter V on MJD  58812.080
-------- 19.16± 0.09-M31-004511.60 in filter I on MJD  58812.080
59001.39 18.57± 0.07-M31-004511.60 in filter V on MJD  59001.390
---- 18.18± 0.08-M31-004511.60 in filter R on MJD  59001.390
----
59059.31 18.66± 0.06-M31-004511.60 in filter V on MJD  59059.310
18.68± 0.05-M31-004511.60 in filter B on MJD  59059.310
18.37± 0.06-M31-004511.60 in filter R on MJD  59059.310
----
59081.22 18.96± 0.18TM31-004511.60 in filter V on MJD  59081.220
--------> 18.41-M31-004511.60 in filter I on MJD  59081.220
59136.11 18.65± 0.06-M31-004511.60 in filter V on MJD  59136.110
19.25± 0.08XM31-004511.60 in filter B on MJD  59136.110
17.86± 0.05-M31-004511.60 in filter R on MJD  59136.110
----
59166.25 18.70± 0.05-M31-004511.60 in filter V on MJD  59166.250
-------- 17.27± 0.06XM31-004511.60 in filter I on MJD  59166.250
59380.36 18.39± 0.06-M31-004511.60 in filter V on MJD  59380.360
---- 17.86± 0.06-M31-004511.60 in filter R on MJD  59380.360
----
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 M31-004511.60Plot of color for M31-004511.60

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 [0.45 mag]B [0.58 mag]R [0.55 mag]
B [0.45 mag]0.24 (14)
R [0.55 mag]0.03 (9)0.98 (3)
I [0.00 mag]0.86 (3)-.-- (0) -.-- (0)

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 M31-004511.60

Plot to assess correlation between bands for M31-004511.60

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)
1.28 | 0.97
R
(I|R)
1.30 | 0.56--- | ---
I
(I|R)
--- | ------ | --- --- | ----

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