Color composite thumbnail image of M33-9M33-9 (J013329.00+304023.5)



Target Notes

Color composite thumbnail image of M33-9

Classification: -

Khan et al. 2012. LGSS uncertain. J013329.06+304023.8 of comparable brightness 1 arcsecond to NE. Sometimes confused with other bright stars within several arc seconds (marked "X" in those cases) but usually not present.

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 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
56140.39 18.84± 0.16TXM33-9 in filter V on MJD  56140.390
----> 18.24-M33-9 in filter R on MJD  56140.390
----
56593.16 19.18± 0.20TXM33-9 in filter V on MJD  56593.160
> 19.06-M33-9 in filter B on MJD  56593.160
--------
56599.19 18.44± 0.13TXM33-9 in filter V on MJD  56599.190
> 19.05-M33-9 in filter B on MJD  56599.190
> 17.94-M33-9 in filter R on MJD  56599.190
----
56976.19>19.230-M33-9 in filter V on MJD  56976.190
18.58± 0.13TM33-9 in filter B on MJD  56976.190
> 18.74-M33-9 in filter R on MJD  56976.190
----
57328.16 19.18± 0.24XM33-9 in filter V on MJD  57328.160
> 19.10-M33-9 in filter B on MJD  57328.160
17.62± 0.07-M33-9 in filter R on MJD  57328.160
----
57406.10>17.890-M33-9 in filter V on MJD  57406.100
> 18.09-M33-9 in filter B on MJD  57406.100
17.14± 0.05TXM33-9 in filter R on MJD  57406.100
> 18.01-M33-9 in filter I on MJD  57406.100
57634.38 18.53± 0.08TXM33-9 in filter V on MJD  57634.380
> 19.03-M33-9 in filter B on MJD  57634.380
> 18.44-M33-9 in filter R on MJD  57634.380
> 18.45-M33-9 in filter I on MJD  57634.380
57964.40 18.43± 0.09TXM33-9 in filter V on MJD  57964.400
--------> 18.43-M33-9 in filter I on MJD  57964.400
M33-9 in filter I on MJD  57964.400
57988.41 18.98± 0.32XM33-9 in filter V on MJD  57988.410
18.89± 0.10XM33-9 in filter B on MJD  57988.410
--------
58043.11 18.69± 0.28AXM33-9 in filter V on MJD  58043.110
M33-9 in filter V on MJD  58043.110
18.97± 0.29XM33-9 in filter B on MJD  58043.110
17.18± 0.06XM33-9 in filter R on MJD  58043.110
M33-9 in filter R on MJD  58043.110
> 18.38-M33-9 in filter I on MJD  58043.110
58073.22>19.320-M33-9 in filter V on MJD  58073.220
18.21± 0.09TXM33-9 in filter B on MJD  58073.220
--------
58103.17 18.34± 0.15TXM33-9 in filter V on MJD  58103.170
M33-9 in filter V on MJD  58103.170
> 19.04-M33-9 in filter B on MJD  58103.170
--------
58108.11 19.01± 0.07XM33-9 in filter V on MJD  58108.110
M33-9 in filter V on MJD  58108.110
18.52± 0.20AXM33-9 in filter B on MJD  58108.110
M33-9 in filter B on MJD  58108.110
----> 18.26-M33-9 in filter I on MJD  58108.110
M33-9 in filter I on MJD  58108.110
58316.35 17.77± 0.07TXM33-9 in filter V on MJD  58316.350
> 18.84-M33-9 in filter B on MJD  58316.350
--------
58317.39 18.54± 0.16XM33-9 in filter V on MJD  58317.390
---- 17.80± 0.11XM33-9 in filter R on MJD  58317.390
----
58341.39 18.04± 0.07AXM33-9 in filter V on MJD  58341.390
M33-9 in filter V on MJD  58341.390
18.74± 0.09XM33-9 in filter B on MJD  58341.390
> 19.21-M33-9 in filter R on MJD  58341.390
> 18.24-M33-9 in filter I on MJD  58341.390
M33-9 in filter I on MJD  58341.390
58373.15 18.16± 0.07XM33-9 in filter V on MJD  58373.150
18.72± 0.21-M33-9 in filter B on MJD  58373.150
--------
58433.01 18.11± 0.11AXM33-9 in filter V on MJD  58433.010
M33-9 in filter V on MJD  58433.010
---- 17.79± 0.08AXM33-9 in filter R on MJD  58433.010
M33-9 in filter R on MJD  58433.010
> 18.36-M33-9 in filter I on MJD  58433.010
M33-9 in filter I on MJD  58433.010
58673.38 18.66± 0.10-M33-9 in filter V on MJD  58673.380
18.89± 0.29TXM33-9 in filter B on MJD  58673.380
--------
58750.19>19.280-M33-9 in filter V on MJD  58750.190
----> 19.36-M33-9 in filter R on MJD  58750.190
----
58779.18>19.340-M33-9 in filter V on MJD  58779.180
> 19.03-M33-9 in filter B on MJD  58779.180
--------
58812.20 18.33± 0.14-M33-9 in filter V on MJD  58812.200
---- 17.21± 0.07TXM33-9 in filter R on MJD  58812.200
----
58902.05>19.240-M33-9 in filter V on MJD  58902.050
--------> 18.36-M33-9 in filter I on MJD  58902.050
59056.38 18.72± 0.06XM33-9 in filter V on MJD  59056.380
18.64± 0.18XM33-9 in filter B on MJD  59056.380
18.00± 0.10XM33-9 in filter R on MJD  59056.380
> 18.35-M33-9 in filter I on MJD  59056.380
59082.32>19.270-M33-9 in filter V on MJD  59082.320
> 19.03-M33-9 in filter B on MJD  59082.320
> 19.35-M33-9 in filter R on MJD  59082.320
----
59084.29--------> 19.28-M33-9 in filter R on MJD  59084.290
----
59161.11>19.190-M33-9 in filter V on MJD  59161.110
> 18.90-M33-9 in filter B on MJD  59161.110
> 19.29-M33-9 in filter R on MJD  59161.110
----
59171.11 17.91± 0.10XM33-9 in filter V on MJD  59171.110
M33-9 in filter V on MJD  59171.110
18.62± 0.17XM33-9 in filter B on MJD  59171.110
----> 18.42-M33-9 in filter I on MJD  59171.110
M33-9 in filter I on MJD  59171.110
59227.10>19.260-M33-9 in filter V on MJD  59227.100
18.87± 0.37TXM33-9 in filter B on MJD  59227.100
--------
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 M33-9Plot of color for M33-9

Key for Plot Variability Photometry Table Target Notes


Variability

Plot/Graph Photometry Table Target Notes

There are not yet enough observations (fewer than three epochs) of this star to reliably determine if it could be variable or not

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 [0.00 mag]B [0.00 mag]R [0.00 mag]
B [0.00 mag]-.-- (0)
R [0.00 mag]-.-- (0)-.-- (0)
I [0.00 mag]-.-- (0)-.-- (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 M33-9

Plot to assess correlation between bands for M33-9

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)
--- | ---
R
(I|R)
--- | ------ | ---
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