Color composite thumbnail image of B324B324 (J013355.96+304530.6)



Target Notes

Color composite thumbnail image of B324

Classification: Warm-Hypergiant

Five LGGS stars >2.5 magnitude fainter 2-5 arcseconds away to the SW. Marked "B" when the closests ones are not resolved from the target.

Find In Simbad Query LGGS Massey (2016) at VizieR Query CAT WISE (Eisenhardt et al., 2020) at VizieR Query Gaia EDR3 (2020) at VizieR LBT Spectra @UMN
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 14.88± 0.05AbB324 in filter V on MJD  56140.380
B324 in filter V on MJD  56140.380
---- 14.53± 0.07AbB324 in filter R on MJD  56140.380
B324 in filter R on MJD  56140.380
----
56593.16 14.74± 0.03bB324 in filter V on MJD  56593.160
15.18± 0.02bB324 in filter B on MJD  56593.160
--------
56599.18 14.82± 0.04AbB324 in filter V on MJD  56599.180
B324 in filter V on MJD  56599.180
15.23± 0.05AbB324 in filter B on MJD  56599.180
B324 in filter B on MJD  56599.180
14.47± 0.06AbB324 in filter R on MJD  56599.180
B324 in filter R on MJD  56599.180
----
56976.18 14.71± 0.04AbB324 in filter V on MJD  56976.180
B324 in filter V on MJD  56976.180
15.12± 0.05AbB324 in filter B on MJD  56976.180
B324 in filter B on MJD  56976.180
14.31± 0.06AbB324 in filter R on MJD  56976.180
B324 in filter R on MJD  56976.180
----
57038.13 14.83± 0.04bB324 in filter V on MJD  57038.130
15.21± 0.05bB324 in filter B on MJD  57038.130
14.46± 0.04bB324 in filter R on MJD  57038.130
----
57310.13 14.88± 0.05bB324 in filter V on MJD  57310.130
15.26± 0.07bB324 in filter B on MJD  57310.130
14.40± 0.05bB324 in filter R on MJD  57310.130
----
57328.16 14.86± 0.03bB324 in filter V on MJD  57328.160
15.32± 0.04bB324 in filter B on MJD  57328.160
14.45± 0.04bB324 in filter R on MJD  57328.160
----
57335.18 14.86± 0.06bB324 in filter V on MJD  57335.180
---- 14.45± 0.05bB324 in filter R on MJD  57335.180
----
57401.10 14.71± 0.04bB324 in filter V on MJD  57401.100
15.10± 0.05bB324 in filter B on MJD  57401.100
--------
57406.10 14.84± 0.04bB324 in filter V on MJD  57406.100
15.29± 0.03bB324 in filter B on MJD  57406.100
14.44± 0.04bB324 in filter R on MJD  57406.100
14.14± 0.07bB324 in filter I on MJD  57406.100
57634.35 14.78± 0.04AbB324 in filter V on MJD  57634.350
B324 in filter V on MJD  57634.350
15.19± 0.06AbB324 in filter B on MJD  57634.350
B324 in filter B on MJD  57634.350
14.34± 0.06AbB324 in filter R on MJD  57634.350
B324 in filter R on MJD  57634.350
13.97± 0.06bB324 in filter I on MJD  57634.350
57638.35 14.94± 0.03bB324 in filter V on MJD  57638.350
15.34± 0.06bB324 in filter B on MJD  57638.350
14.53± 0.05bB324 in filter R on MJD  57638.350
14.18± 0.07bB324 in filter I on MJD  57638.350
57687.13 14.99± 0.05bB324 in filter V on MJD  57687.130
15.30± 0.06bB324 in filter B on MJD  57687.130
14.62± 0.05bB324 in filter R on MJD  57687.130
14.14± 0.06bB324 in filter I on MJD  57687.130
57964.37 14.71± 0.04bB324 in filter V on MJD  57964.370
15.11± 0.06bB324 in filter B on MJD  57964.370
14.36± 0.05bB324 in filter R on MJD  57964.370
14.05± 0.06bB324 in filter I on MJD  57964.370
57988.41 14.78± 0.05bB324 in filter V on MJD  57988.410
15.20± 0.04bB324 in filter B on MJD  57988.410
--------
58043.10 14.91± 0.04bB324 in filter V on MJD  58043.100
---- 14.36± 0.04bB324 in filter R on MJD  58043.100
13.96± 0.06bB324 in filter I on MJD  58043.100
58045.15 14.71± 0.05bB324 in filter V on MJD  58045.150
15.19± 0.07bB324 in filter B on MJD  58045.150
14.52± 0.04bB324 in filter R on MJD  58045.150
----
58073.18 14.79± 0.03bB324 in filter V on MJD  58073.180
15.16± 0.06bB324 in filter B on MJD  58073.180
--------
58103.16 14.72± 0.04AbB324 in filter V on MJD  58103.160
B324 in filter V on MJD  58103.160
15.12± 0.04bB324 in filter B on MJD  58103.160
---- 14.04± 0.06bB324 in filter I on MJD  58103.160
58108.14 14.68± 0.05bB324 in filter V on MJD  58108.140
15.10± 0.06bB324 in filter B on MJD  58108.140
---- 13.97± 0.08bB324 in filter I on MJD  58108.140
58316.38 14.70± 0.03bB324 in filter V on MJD  58316.380
15.11± 0.05bB324 in filter B on MJD  58316.380
14.36± 0.03bB324 in filter R on MJD  58316.380
14.05± 0.04bB324 in filter I on MJD  58316.380
58317.39 14.74± 0.04bB324 in filter V on MJD  58317.390
---- 14.39± 0.07bB324 in filter R on MJD  58317.390
B324 in filter R on MJD  58317.390
----
58341.40 14.74± 0.05bB324 in filter V on MJD  58341.400
15.13± 0.08bB324 in filter B on MJD  58341.400
14.41± 0.07bB324 in filter R on MJD  58341.400
14.06± 0.10bB324 in filter I on MJD  58341.400
58342.36 14.71± 0.03bB324 in filter V on MJD  58342.360
15.13± 0.06bB324 in filter B on MJD  58342.360
B324 in filter B on MJD  58342.360
14.36± 0.03bB324 in filter R on MJD  58342.360
B324 in filter R on MJD  58342.360
14.05± 0.04bB324 in filter I on MJD  58342.360
B324 in filter I on MJD  58342.360
58403.15 14.89± 0.04bB324 in filter V on MJD  58403.150
-------- 14.14± 0.09bB324 in filter I on MJD  58403.150
58420.06 14.73± 0.04bB324 in filter V on MJD  58420.060
15.18± 0.06bB324 in filter B on MJD  58420.060
14.85± 0.04XB324 in filter R on MJD  58420.060
14.08± 0.06bB324 in filter I on MJD  58420.060
58433.00 14.83± 0.05bB324 in filter V on MJD  58433.000
---- 14.44± 0.05bB324 in filter R on MJD  58433.000
14.08± 0.06bB324 in filter I on MJD  58433.000
58696.39 14.76± 0.04bB324 in filter V on MJD  58696.390
15.18± 0.05bB324 in filter B on MJD  58696.390
14.40± 0.04bB324 in filter R on MJD  58696.390
----
58779.15 14.59± 0.04bB324 in filter V on MJD  58779.150
---- 14.25± 0.05BB324 in filter R on MJD  58779.150
14.96± 0.17XB324 in filter I on MJD  58779.150
58812.22 14.77± 0.04bB324 in filter V on MJD  58812.220
-------- 14.04± 0.05bB324 in filter I on MJD  58812.220
58902.06 14.77± 0.03AbB324 in filter V on MJD  58902.060
B324 in filter V on MJD  58902.060
---- 14.38± 0.04bB324 in filter R on MJD  58902.060
13.97± 0.07BB324 in filter I on MJD  58902.060
59056.38 14.87± 0.04bB324 in filter V on MJD  59056.380
15.22± 0.06bB324 in filter B on MJD  59056.380
14.39± 0.05bB324 in filter R on MJD  59056.380
14.20± 0.07bB324 in filter I on MJD  59056.380
59081.33 14.82± 0.03bB324 in filter V on MJD  59081.330
15.20± 0.06bB324 in filter B on MJD  59081.330
14.45± 0.03bB324 in filter R on MJD  59081.330
----
59082.34 14.82± 0.03AbB324 in filter V on MJD  59082.340
B324 in filter V on MJD  59082.340
15.24± 0.05AbB324 in filter B on MJD  59082.340
B324 in filter B on MJD  59082.340
B324 in filter B on MJD  59082.340
14.44± 0.05ABB324 in filter R on MJD  59082.340
B324 in filter R on MJD  59082.340
B324 in filter R on MJD  59082.340
----
59084.29-------- 14.41± 0.06TbB324 in filter R on MJD  59084.290
----
59161.09 14.85± 0.04AbB324 in filter V on MJD  59161.090
B324 in filter V on MJD  59161.090
15.29± 0.05AbB324 in filter B on MJD  59161.090
B324 in filter B on MJD  59161.090
14.44± 0.04ABB324 in filter R on MJD  59161.090
B324 in filter R on MJD  59161.090
----
59171.09 14.82± 0.04AbB324 in filter V on MJD  59171.090
B324 in filter V on MJD  59171.090
B324 in filter V on MJD  59171.090
15.27± 0.05AbB324 in filter B on MJD  59171.090
B324 in filter B on MJD  59171.090
14.35± 0.05BB324 in filter R on MJD  59171.090
14.20± 0.07ABB324 in filter I on MJD  59171.090
B324 in filter I on MJD  59171.090
B324 in filter I on MJD  59171.090
59227.08 14.81± 0.03AbB324 in filter V on MJD  59227.080
B324 in filter V on MJD  59227.080
B324 in filter V on MJD  59227.080
15.24± 0.04AbB324 in filter B on MJD  59227.080
B324 in filter B on MJD  59227.080
B324 in filter B on MJD  59227.080
14.46± 0.05ABB324 in filter R on MJD  59227.080
B324 in filter R on MJD  59227.080
----
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 B324Plot of color for B324

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 [0.24 mag]B [0.40 mag]R [0.37 mag]
B [0.24 mag]0.79 (28)
R [0.37 mag]0.49 (28)0.38 (21)
I [0.24 mag]0.27 (18)0.60 (13)0.20 (13)

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 B324

Plot to assess correlation between bands for B324

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)
2.42 | 0.73
R
(I|R)
2.45 | 1.364.80 | 0.06
I
(I|R)
1.33 | 2.161.35 | 1.531.07 | 1.24

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