Color composite thumbnail image of M33-013400.22M33-013400.22 (J013400.22+304047.5)


Target Notes

Color composite thumbnail image of M33-013400.22

Classification: Fe_emission

Likely to be a star cluster with a luminous massive star in it. Two stars approximately 2 magnitudes fainter (J013400.23+304045.1 and J013400.24+304045.0) within 2.5. arcseconds. The PSF fit for this target in V images is terrible because it sits on a discontinuity in the background (which is brighter in BV than RI). It is clearly a very red object. Flag all B and V as "B", RI as "b."

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 M33 Variability Hartman et al. Survey (2006) at VizieR

Photometry Table

Download table (txt) Key to Flags in Table Key For Images Plot/Graph Variability
MJDV*ImageB*ImageR*ImagesI*Images
56140.38 19.93± 0.26ABM33-013400.22 in filter V on MJD 56140.380
M33-013400.22 in filter V on MJD 56140.380
---- 18.16± 0.26AbM33-013400.22 in filter R on MJD 56140.380
M33-013400.22 in filter R on MJD 56140.380
----
56593.16 20.82± 0.46TBM33-013400.22 in filter V on MJD 56593.160
> 14.60bM33-013400.22 in filter B on MJD 56593.160
--------
56599.18>16.870BM33-013400.22 in filter V on MJD 56599.180
M33-013400.22 in filter V on MJD 56599.180
> 17.06BM33-013400.22 in filter B on MJD 56599.180
M33-013400.22 in filter B on MJD 56599.180
 18.09± 0.07TbM33-013400.22 in filter R on MJD 56599.180
M33-013400.22 in filter R on MJD 56599.180
----
56976.17 20.46± 0.35BM33-013400.22 in filter V on MJD 56976.170
> 16.91BM33-013400.22 in filter B on MJD 56976.170
 17.99± 0.08AbM33-013400.22 in filter R on MJD 56976.170
M33-013400.22 in filter R on MJD 56976.170
----
57038.13 20.14± 0.23BM33-013400.22 in filter V on MJD 57038.130
> 16.96BM33-013400.22 in filter B on MJD 57038.130
 17.98± 0.06bM33-013400.22 in filter R on MJD 57038.130
----
57310.13>16.640BM33-013400.22 in filter V on MJD 57310.130
> 18.18BM33-013400.22 in filter B on MJD 57310.130
 18.27± 0.08TbM33-013400.22 in filter R on MJD 57310.130
----
57328.16 20.25± 0.22BM33-013400.22 in filter V on MJD 57328.160
> 17.47BM33-013400.22 in filter B on MJD 57328.160
 17.89± 0.06bM33-013400.22 in filter R on MJD 57328.160
----
57335.18 19.71± 0.16BM33-013400.22 in filter V on MJD 57335.180
---- 17.91± 0.06bM33-013400.22 in filter R on MJD 57335.180
----
57401.10>17.130BM33-013400.22 in filter V on MJD 57401.100
> 17.01BM33-013400.22 in filter B on MJD 57401.100
--------
57406.10>14.170BM33-013400.22 in filter V on MJD 57406.100
> 12.05BM33-013400.22 in filter B on MJD 57406.100
 17.95± 0.09TbM33-013400.22 in filter R on MJD 57406.100
 18.59± 0.24TbM33-013400.22 in filter I on MJD 57406.100
57634.35 20.79± 0.41BM33-013400.22 in filter V on MJD 57634.350
M33-013400.22 in filter V on MJD 57634.350
> 17.53BM33-013400.22 in filter B on MJD 57634.350
M33-013400.22 in filter B on MJD 57634.350
 17.95± 0.08AbM33-013400.22 in filter R on MJD 57634.350
M33-013400.22 in filter R on MJD 57634.350
 19.19± 0.24bM33-013400.22 in filter I on MJD 57634.350
57687.13>16.760BM33-013400.22 in filter V on MJD 57687.130
> 17.12BM33-013400.22 in filter B on MJD 57687.130
 18.05± 0.06TbM33-013400.22 in filter R on MJD 57687.130
> 15.78bM33-013400.22 in filter I on MJD 57687.130
57964.35 20.93± 0.44BM33-013400.22 in filter V on MJD 57964.350
M33-013400.22 in filter V on MJD 57964.350
> 17.28BM33-013400.22 in filter B on MJD 57964.350
M33-013400.22 in filter B on MJD 57964.350
 17.98± 0.08AbM33-013400.22 in filter R on MJD 57964.350
M33-013400.22 in filter R on MJD 57964.350
 19.05± 0.24AbM33-013400.22 in filter I on MJD 57964.350
M33-013400.22 in filter I on MJD 57964.350
57988.41>17.450BM33-013400.22 in filter V on MJD 57988.410
> 17.01BM33-013400.22 in filter B on MJD 57988.410
--------
58043.10>16.850BM33-013400.22 in filter V on MJD 58043.100
---- 18.16± 0.06TbM33-013400.22 in filter R on MJD 58043.100
> 15.64bM33-013400.22 in filter I on MJD 58043.100
58045.16>16.730BM33-013400.22 in filter V on MJD 58045.160
M33-013400.22 in filter V on MJD 58045.160
> 16.99BM33-013400.22 in filter B on MJD 58045.160
M33-013400.22 in filter B on MJD 58045.160
 18.30± 0.09TbM33-013400.22 in filter R on MJD 58045.160
M33-013400.22 in filter R on MJD 58045.160
----
58073.19 20.77± 0.35BM33-013400.22 in filter V on MJD 58073.190
M33-013400.22 in filter V on MJD 58073.190
> 18.98BM33-013400.22 in filter B on MJD 58073.190
M33-013400.22 in filter B on MJD 58073.190
--------
58103.16>17.080BM33-013400.22 in filter V on MJD 58103.160
M33-013400.22 in filter V on MJD 58103.160
M33-013400.22 in filter V on MJD 58103.160
> 17.21BM33-013400.22 in filter B on MJD 58103.160
---- 19.21± 0.35TbM33-013400.22 in filter I on MJD 58103.160
58108.13 20.24± 0.29ABM33-013400.22 in filter V on MJD 58108.130
M33-013400.22 in filter V on MJD 58108.130
> 16.90BM33-013400.22 in filter B on MJD 58108.130
M33-013400.22 in filter B on MJD 58108.130
---- 18.46± 0.20AbM33-013400.22 in filter I on MJD 58108.130
M33-013400.22 in filter I on MJD 58108.130
58312.39 19.88± 0.20TBM33-013400.22 in filter V on MJD 58312.390
> 15.74BM33-013400.22 in filter B on MJD 58312.390
--------
58316.38>17.050BM33-013400.22 in filter V on MJD 58316.380
> 16.96BM33-013400.22 in filter B on MJD 58316.380
 17.91± 0.05TbM33-013400.22 in filter R on MJD 58316.380
 19.30± 0.31TbM33-013400.22 in filter I on MJD 58316.380
58317.37 20.02± 0.23BM33-013400.22 in filter V on MJD 58317.370
> 16.74BM33-013400.22 in filter B on MJD 58317.370
M33-013400.22 in filter B on MJD 58317.370
 17.92± 0.06bM33-013400.22 in filter R on MJD 58317.370
M33-013400.22 in filter R on MJD 58317.370
----
58341.34 19.51± 0.13BM33-013400.22 in filter V on MJD 58341.340
-------- 18.66± 0.16bM33-013400.22 in filter I on MJD 58341.340
58342.38 19.93± 0.24BM33-013400.22 in filter V on MJD 58342.380
M33-013400.22 in filter V on MJD 58342.380
 20.84± 0.51BM33-013400.22 in filter B on MJD 58342.380
M33-013400.22 in filter B on MJD 58342.380
 17.88± 0.07AbM33-013400.22 in filter R on MJD 58342.380
M33-013400.22 in filter R on MJD 58342.380
 18.51± 0.18bM33-013400.22 in filter I on MJD 58342.380
M33-013400.22 in filter I on MJD 58342.380
58375.14>16.470BM33-013400.22 in filter V on MJD 58375.140
---- 18.13± 0.07TbM33-013400.22 in filter R on MJD 58375.140
----
58420.08>16.770BM33-013400.22 in filter V on MJD 58420.080
M33-013400.22 in filter V on MJD 58420.080
> 16.89BM33-013400.22 in filter B on MJD 58420.080
M33-013400.22 in filter B on MJD 58420.080
 18.32± 0.07TbM33-013400.22 in filter R on MJD 58420.080
> 15.53bM33-013400.22 in filter I on MJD 58420.080
M33-013400.22 in filter I on MJD 58420.080
58433.00>16.160BM33-013400.22 in filter V on MJD 58433.000
---- 18.15± 0.07TbM33-013400.22 in filter R on MJD 58433.000
> 15.32bM33-013400.22 in filter I on MJD 58433.000
58672.39>15.760BM33-013400.22 in filter V on MJD 58672.390
---- 18.02± 0.08TbM33-013400.22 in filter R on MJD 58672.390
> 14.68bM33-013400.22 in filter I on MJD 58672.390
58673.38 19.36± 0.10TBM33-013400.22 in filter V on MJD 58673.380
> 16.54BM33-013400.22 in filter B on MJD 58673.380
--------
58695.36 20.03± 0.20BM33-013400.22 in filter V on MJD 58695.360
> 17.62BM33-013400.22 in filter B on MJD 58695.360
 17.92± 0.06bM33-013400.22 in filter R on MJD 58695.360
----
58779.18>17.020BM33-013400.22 in filter V on MJD 58779.180
------------
58784.12 20.13± 0.27BM33-013400.22 in filter V on MJD 58784.120
 21.45± 0.49BM33-013400.22 in filter B on MJD 58784.120
--------
58812.22>17.570BM33-013400.22 in filter V on MJD 58812.220
-------- 19.74± 0.45TbM33-013400.22 in filter I on MJD 58812.220
58902.06 20.09± 0.29ABM33-013400.22 in filter V on MJD 58902.060
M33-013400.22 in filter V on MJD 58902.060
---- 17.88± 0.06bM33-013400.22 in filter R on MJD 58902.060
 18.29± 0.16bM33-013400.22 in filter I on MJD 58902.060
59056.38 20.22± 0.29BM33-013400.22 in filter V on MJD 59056.380
> 17.16-M33-013400.22 in filter B on MJD 59056.380
 17.88± 0.07bM33-013400.22 in filter R on MJD 59056.380
 18.41± 0.15bM33-013400.22 in filter I on MJD 59056.380
59059.38 20.42± 0.32TBM33-013400.22 in filter V on MJD 59059.380
> 17.25-M33-013400.22 in filter B on MJD 59059.380
--------
59081.30 19.83± 0.21BM33-013400.22 in filter V on MJD 59081.300
M33-013400.22 in filter V on MJD 59081.300
> 17.38-M33-013400.22 in filter B on MJD 59081.300
 17.88± 0.06AbM33-013400.22 in filter R on MJD 59081.300
M33-013400.22 in filter R on MJD 59081.300
----
59082.34>17.360-M33-013400.22 in filter V on MJD 59082.340
M33-013400.22 in filter V on MJD 59082.340
> 17.34-M33-013400.22 in filter B on MJD 59082.340
M33-013400.22 in filter B on MJD 59082.340
M33-013400.22 in filter B on MJD 59082.340
 17.92± 0.06TbM33-013400.22 in filter R on MJD 59082.340
M33-013400.22 in filter R on MJD 59082.340
M33-013400.22 in filter R on MJD 59082.340
M33-013400.22 in filter R on MJD 59082.340
----
59084.29-------- 17.90± 0.06TbM33-013400.22 in filter R on MJD 59084.290
----
59161.09>17.030-M33-013400.22 in filter V on MJD 59161.090
M33-013400.22 in filter V on MJD 59161.090
> 16.89-M33-013400.22 in filter B on MJD 59161.090
M33-013400.22 in filter B on MJD 59161.090
 18.09± 0.06TbM33-013400.22 in filter R on MJD 59161.090
M33-013400.22 in filter R on MJD 59161.090
----
59171.09>16.790-M33-013400.22 in filter V on MJD 59171.090
M33-013400.22 in filter V on MJD 59171.090
M33-013400.22 in filter V on MJD 59171.090
> 17.07-M33-013400.22 in filter B on MJD 59171.090
M33-013400.22 in filter B on MJD 59171.090
 18.30± 0.08TbM33-013400.22 in filter R on MJD 59171.090
 18.98± 0.30TbM33-013400.22 in filter I on MJD 59171.090
M33-013400.22 in filter I on MJD 59171.090
M33-013400.22 in filter I on MJD 59171.090
59227.08 19.99± 0.29ABM33-013400.22 in filter V on MJD 59227.080
M33-013400.22 in filter V on MJD 59227.080
M33-013400.22 in filter V on MJD 59227.080
 21.48± 0.48ABM33-013400.22 in filter B on MJD 59227.080
M33-013400.22 in filter B on MJD 59227.080
M33-013400.22 in filter B on MJD 59227.080
 17.89± 0.07AbM33-013400.22 in filter R on MJD 59227.080
M33-013400.22 in filter R on MJD 59227.080
----
59415.37 19.66± 0.27ABM33-013400.22 in filter V on MJD 59415.370
M33-013400.22 in filter V on MJD 59415.370
> 16.31-M33-013400.22 in filter B on MJD 59415.370
 17.88± 0.06bM33-013400.22 in filter R on MJD 59415.370
----
59441.40 19.86± 0.22ABM33-013400.22 in filter V on MJD 59441.400
M33-013400.22 in filter V on MJD 59441.400
> 17.52-M33-013400.22 in filter B on MJD 59441.400
 17.84± 0.07bM33-013400.22 in filter R on MJD 59441.400
 18.16± 0.13bM33-013400.22 in filter I on MJD 59441.400
59442.39>17.120-M33-013400.22 in filter V on MJD 59442.390
---- 18.04± 0.06TbM33-013400.22 in filter R on MJD 59442.390
M33-013400.22 in filter R on MJD 59442.390
 18.49± 0.14TbM33-013400.22 in filter I on MJD 59442.390
M33-013400.22 in filter I on MJD 59442.390
59463.28 20.30± 0.34ABM33-013400.22 in filter V on MJD 59463.280
M33-013400.22 in filter V on MJD 59463.280
M33-013400.22 in filter V on MJD 59463.280
> 17.16-M33-013400.22 in filter B on MJD 59463.280
---- 18.44± 0.13bM33-013400.22 in filter I on MJD 59463.280
59523.16 20.04± 0.28ABM33-013400.22 in filter V on MJD 59523.160
M33-013400.22 in filter V on MJD 59523.160
> 16.90-M33-013400.22 in filter B on MJD 59523.160
 17.91± 0.06bM33-013400.22 in filter R on MJD 59523.160
----
59525.15 19.74± 0.17BM33-013400.22 in filter V on MJD 59525.150
M33-013400.22 in filter V on MJD 59525.150
M33-013400.22 in filter V on MJD 59525.150
> 17.33-M33-013400.22 in filter B on MJD 59525.150
 17.86± 0.06-M33-013400.22 in filter R on MJD 59525.150
> 16.13-M33-013400.22 in filter I on MJD 59525.150
59546.18 19.96± 0.23ABM33-013400.22 in filter V on MJD 59546.180
M33-013400.22 in filter V on MJD 59546.180
M33-013400.22 in filter V on MJD 59546.180
 21.28± 0.42BM33-013400.22 in filter B on MJD 59546.180
 17.89± 0.06bM33-013400.22 in filter R on MJD 59546.180
 18.25± 0.10bM33-013400.22 in filter I on MJD 59546.180
59551.12>19.220-M33-013400.22 in filter V on MJD 59551.120
M33-013400.22 in filter V on MJD 59551.120
M33-013400.22 in filter V on MJD 59551.120
> 17.46-M33-013400.22 in filter B on MJD 59551.120
M33-013400.22 in filter B on MJD 59551.120
----> 16.16-M33-013400.22 in filter I on MJD 59551.120
59583.16 19.85± 0.22ABM33-013400.22 in filter V on MJD 59583.160
M33-013400.22 in filter V on MJD 59583.160
M33-013400.22 in filter V on MJD 59583.160
> 16.80BM33-013400.22 in filter B on MJD 59583.160
 17.91± 0.06bM33-013400.22 in filter R on MJD 59583.160
 18.40± 0.15bM33-013400.22 in filter I on MJD 59583.160
59608.09>16.890-M33-013400.22 in filter V on MJD 59608.090
M33-013400.22 in filter V on MJD 59608.090
M33-013400.22 in filter V on MJD 59608.090
---- 18.02± 0.06TbM33-013400.22 in filter R on MJD 59608.090
M33-013400.22 in filter R on MJD 59608.090
> 15.58-M33-013400.22 in filter I on MJD 59608.090
59794.36 19.89± 0.21TBM33-013400.22 in filter V on MJD 59794.360
M33-013400.22 in filter V on MJD 59794.360
M33-013400.22 in filter V on MJD 59794.360
> 16.92-M33-013400.22 in filter B on MJD 59794.360
M33-013400.22 in filter B on MJD 59794.360
--------
59823.24 20.58± 0.40TBM33-013400.22 in filter V on MJD 59823.240
> 16.86-M33-013400.22 in filter B on MJD 59823.240
--------
59849.18>16.790-M33-013400.22 in filter V on MJD 59849.180
M33-013400.22 in filter V on MJD 59849.180
---- 18.39± 0.09TbM33-013400.22 in filter R on MJD 59849.180
> 15.82-M33-013400.22 in filter I on MJD 59849.180
59851.15 20.55± 0.43BM33-013400.22 in filter V on MJD 59851.150
M33-013400.22 in filter V on MJD 59851.150
M33-013400.22 in filter V on MJD 59851.150
---- 17.99± 0.08AbM33-013400.22 in filter R on MJD 59851.150
M33-013400.22 in filter R on MJD 59851.150
 18.77± 0.23bM33-013400.22 in filter I on MJD 59851.150
59854.20>17.100-M33-013400.22 in filter V on MJD 59854.200
M33-013400.22 in filter V on MJD 59854.200
M33-013400.22 in filter V on MJD 59854.200
> 17.04-M33-013400.22 in filter B on MJD 59854.200
M33-013400.22 in filter B on MJD 59854.200
M33-013400.22 in filter B on MJD 59854.200
--------
59879.13>16.800-M33-013400.22 in filter V on MJD 59879.130
M33-013400.22 in filter V on MJD 59879.130
> 16.41-M33-013400.22 in filter B on MJD 59879.130
---- 18.84± 0.28TbM33-013400.22 in filter I on MJD 59879.130
M33-013400.22 in filter I on MJD 59879.130
59903.20 20.07± 0.39ABM33-013400.22 in filter V on MJD 59903.200
M33-013400.22 in filter V on MJD 59903.200
> 17.38-M33-013400.22 in filter B on MJD 59903.200
M33-013400.22 in filter B on MJD 59903.200
 17.89± 0.07ABM33-013400.22 in filter R on MJD 59903.200
M33-013400.22 in filter R on MJD 59903.200
 18.83± 0.25bM33-013400.22 in filter I on MJD 59903.200
M33-013400.22 in filter I on MJD 59903.200
59904.12 20.67± 0.48BM33-013400.22 in filter V on MJD 59904.120
> 17.15-M33-013400.22 in filter B on MJD 59904.120
M33-013400.22 in filter B on MJD 59904.120
M33-013400.22 in filter B on MJD 59904.120
 17.98± 0.07bM33-013400.22 in filter R on MJD 59904.120
M33-013400.22 in filter R on MJD 59904.120
M33-013400.22 in filter R on MJD 59904.120
 18.41± 0.13bM33-013400.22 in filter I on MJD 59904.120
M33-013400.22 in filter I on MJD 59904.120
M33-013400.22 in filter I on MJD 59904.120
59932.15 19.99± 0.25ABM33-013400.22 in filter V on MJD 59932.150
M33-013400.22 in filter V on MJD 59932.150
M33-013400.22 in filter V on MJD 59932.150
> 17.08-M33-013400.22 in filter B on MJD 59932.150
 17.90± 0.07bM33-013400.22 in filter R on MJD 59932.150
 18.36± 0.15bM33-013400.22 in filter I on MJD 59932.150
60172.38 19.78± 0.19ABM33-013400.22 in filter V on MJD 60172.380
M33-013400.22 in filter V on MJD 60172.380
> 17.22-M33-013400.22 in filter B on MJD 60172.380
 17.92± 0.06bM33-013400.22 in filter R on MJD 60172.380
----
60205.16 20.25± 0.40BM33-013400.22 in filter V on MJD 60205.160
M33-013400.22 in filter V on MJD 60205.160
> 16.70-M33-013400.22 in filter B on MJD 60205.160
 17.91± 0.07bM33-013400.22 in filter R on MJD 60205.160
----
60227.11>16.550-M33-013400.22 in filter V on MJD 60227.110
M33-013400.22 in filter V on MJD 60227.110
M33-013400.22 in filter V on MJD 60227.110
> 16.21-M33-013400.22 in filter B on MJD 60227.110
 18.17± 0.08TbM33-013400.22 in filter R on MJD 60227.110
> 15.50-M33-013400.22 in filter I on MJD 60227.110
M33-013400.22 in filter I on MJD 60227.110
60261.12 20.02± 0.24BM33-013400.22 in filter V on MJD 60261.120
---- 17.91± 0.07-M33-013400.22 in filter R on MJD 60261.120
----
60262.14>17.070-M33-013400.22 in filter V on MJD 60262.140
M33-013400.22 in filter V on MJD 60262.140
> 17.26-M33-013400.22 in filter B on MJD 60262.140
M33-013400.22 in filter B on MJD 60262.140
 18.25± 0.07TbM33-013400.22 in filter R on MJD 60262.140
M33-013400.22 in filter R on MJD 60262.140
> 16.39-M33-013400.22 in filter I on MJD 60262.140
60290.15>17.500-M33-013400.22 in filter V on MJD 60290.150
M33-013400.22 in filter V on MJD 60290.150
M33-013400.22 in filter V on MJD 60290.150
> 17.53-M33-013400.22 in filter B on MJD 60290.150
M33-013400.22 in filter B on MJD 60290.150
M33-013400.22 in filter B on MJD 60290.150
 18.01± 0.07TbM33-013400.22 in filter R on MJD 60290.150
 18.84± 0.22TbM33-013400.22 in filter I on MJD 60290.150
M33-013400.22 in filter I on MJD 60290.150
60292.18 20.34± 0.37ABM33-013400.22 in filter V on MJD 60292.180
M33-013400.22 in filter V on MJD 60292.180
M33-013400.22 in filter V on MJD 60292.180
---- 18.01± 0.07AbM33-013400.22 in filter R on MJD 60292.180
M33-013400.22 in filter R on MJD 60292.180
 18.80± 0.27bM33-013400.22 in filter I on MJD 60292.180
60342.09 19.86± 0.21ABM33-013400.22 in filter V on MJD 60342.090
M33-013400.22 in filter V on MJD 60342.090
M33-013400.22 in filter V on MJD 60342.090
> 17.36-M33-013400.22 in filter B on MJD 60342.090
 17.90± 0.07bM33-013400.22 in filter R on MJD 60342.090
 18.17± 0.13bM33-013400.22 in filter I on MJD 60342.090
60504.38 19.41± 0.14BM33-013400.22 in filter V on MJD 60504.380
> 16.62-M33-013400.22 in filter B on MJD 60504.380
 17.79± 0.06bM33-013400.22 in filter R on MJD 60504.380
----
60506.37 19.34± 0.13BM33-013400.22 in filter V on MJD 60506.370
M33-013400.22 in filter V on MJD 60506.370
> 16.42-M33-013400.22 in filter B on MJD 60506.370
 17.83± 0.06bM33-013400.22 in filter R on MJD 60506.370
 18.07± 0.12bM33-013400.22 in filter I on MJD 60506.370
60529.37 19.86± 0.22ABM33-013400.22 in filter V on MJD 60529.370
M33-013400.22 in filter V on MJD 60529.370
> 17.11-M33-013400.22 in filter B on MJD 60529.370
---- 18.16± 0.12bM33-013400.22 in filter I on MJD 60529.370
60533.38 20.16± 0.29BM33-013400.22 in filter V on MJD 60533.380
---- 17.89± 0.07bM33-013400.22 in filter R on MJD 60533.380
 18.03± 0.12bM33-013400.22 in filter I on MJD 60533.380
60556.27 20.06± 0.27ABM33-013400.22 in filter V on MJD 60556.270
M33-013400.22 in filter V on MJD 60556.270
M33-013400.22 in filter V on MJD 60556.270
> 17.20-M33-013400.22 in filter B on MJD 60556.270
M33-013400.22 in filter B on MJD 60556.270
 17.85± 0.06bM33-013400.22 in filter R on MJD 60556.270
 18.06± 0.14bM33-013400.22 in filter I on MJD 60556.270
60564.22 19.85± 0.26BM33-013400.22 in filter V on MJD 60564.220
> 16.72-M33-013400.22 in filter B on MJD 60564.220
 17.80± 0.07bM33-013400.22 in filter R on MJD 60564.220
----
60594.11>16.580----- 17.90± 0.07Tb 18.51± 0.19Tb
60595.13>16.380-M33-013400.22 in filter V on MJD 60595.130
> 16.17-M33-013400.22 in filter B on MJD 60595.130
 18.00± 0.08TbM33-013400.22 in filter R on MJD 60595.130
M33-013400.22 in filter R on MJD 60595.130
----
60612.15>17.150-M33-013400.22 in filter V on MJD 60612.150
M33-013400.22 in filter V on MJD 60612.150
> 17.08-M33-013400.22 in filter B on MJD 60612.150
 17.95± 0.07TbM33-013400.22 in filter R on MJD 60612.150
----
60651.16 20.82± 0.47BM33-013400.22 in filter V on MJD 60651.160
M33-013400.22 in filter V on MJD 60651.160
M33-013400.22 in filter V on MJD 60651.160
 21.20± 0.44BM33-013400.22 in filter B on MJD 60651.160
 17.77± 0.08bM33-013400.22 in filter R on MJD 60651.160
 18.61± 0.20bM33-013400.22 in filter I on MJD 60651.160
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 M33-013400.22Plot of color for M33-013400.22

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 [1.59 mag]B [0.00 mag]R [0.62 mag]
B [0.00 mag]0.00 (5)
R [0.62 mag]0.11 (35)0.01 (4)
I [1.71 mag]0.39 (22)0.16 (3)0.22 (24)

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 M33-013400.22

Plot to assess correlation between bands for M33-013400.22

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)		0.04 | 0.61
R
(I|R)		0.57 | 1.70--- | ---
I
(I|R)		1.29 | 0.82--- | --- 1.13 | 0.63

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