Color composite thumbnail image of UIT301 B416UIT301 B416 (J013406.63+304147.8)



Target Notes

Color composite thumbnail image of UIT301_B416

Classification: OB-Supergiant

(Candidate LBV) Resolved from a trio of LGGS stars 4.5 arcseconds to the SW that combine to be 1 magnitude fainter in BV and 2 magnitudes fainter in RI.

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
56140.37 16.07± 0.06bUIT301_B416 in filter V on MJD  56140.370
---- 15.78± 0.07bUIT301_B416 in filter R on MJD  56140.370
----
56599.17 16.05± 0.04AbUIT301_B416 in filter V on MJD  56599.170
UIT301_B416 in filter V on MJD  56599.170
16.15± 0.05AbUIT301_B416 in filter B on MJD  56599.170
UIT301_B416 in filter B on MJD  56599.170
15.73± 0.06bUIT301_B416 in filter R on MJD  56599.170
----
56976.16 15.99± 0.04bUIT301_B416 in filter V on MJD  56976.160
16.09± 0.06bUIT301_B416 in filter B on MJD  56976.160
15.65± 0.04bUIT301_B416 in filter R on MJD  56976.160
----
57038.13 16.06± 0.04bUIT301_B416 in filter V on MJD  57038.130
16.15± 0.05bUIT301_B416 in filter B on MJD  57038.130
15.71± 0.04bUIT301_B416 in filter R on MJD  57038.130
----
57310.13 16.07± 0.05bUIT301_B416 in filter V on MJD  57310.130
16.17± 0.07bUIT301_B416 in filter B on MJD  57310.130
15.76± 0.05bUIT301_B416 in filter R on MJD  57310.130
----
57335.18 16.06± 0.06bUIT301_B416 in filter V on MJD  57335.180
---- 15.69± 0.05bUIT301_B416 in filter R on MJD  57335.180
----
57401.10 16.04± 0.04bUIT301_B416 in filter V on MJD  57401.100
16.14± 0.05bUIT301_B416 in filter B on MJD  57401.100
--------
57406.10 15.98± 0.04bUIT301_B416 in filter V on MJD  57406.100
16.07± 0.03bUIT301_B416 in filter B on MJD  57406.100
15.61± 0.04bUIT301_B416 in filter R on MJD  57406.100
15.52± 0.07bUIT301_B416 in filter I on MJD  57406.100
57634.34 16.17± 0.05bUIT301_B416 in filter V on MJD  57634.340
16.24± 0.07bUIT301_B416 in filter B on MJD  57634.340
15.81± 0.05bUIT301_B416 in filter R on MJD  57634.340
15.69± 0.06bUIT301_B416 in filter I on MJD  57634.340
57687.13 16.07± 0.05bUIT301_B416 in filter V on MJD  57687.130
16.29± 0.06bUIT301_B416 in filter B on MJD  57687.130
15.93± 0.05bUIT301_B416 in filter R on MJD  57687.130
15.60± 0.06bUIT301_B416 in filter I on MJD  57687.130
57964.35 16.10± 0.04AbUIT301_B416 in filter V on MJD  57964.350
UIT301_B416 in filter V on MJD  57964.350
16.17± 0.06AbUIT301_B416 in filter B on MJD  57964.350
UIT301_B416 in filter B on MJD  57964.350
15.73± 0.05AbUIT301_B416 in filter R on MJD  57964.350
UIT301_B416 in filter R on MJD  57964.350
15.64± 0.06AbUIT301_B416 in filter I on MJD  57964.350
UIT301_B416 in filter I on MJD  57964.350
57988.41 16.16± 0.05bUIT301_B416 in filter V on MJD  57988.410
16.34± 0.04bUIT301_B416 in filter B on MJD  57988.410
--------
58043.10 16.10± 0.04bUIT301_B416 in filter V on MJD  58043.100
---- 15.72± 0.04bUIT301_B416 in filter R on MJD  58043.100
15.63± 0.07bUIT301_B416 in filter I on MJD  58043.100
58045.16 16.14± 0.05AbUIT301_B416 in filter V on MJD  58045.160
UIT301_B416 in filter V on MJD  58045.160
16.23± 0.07AbUIT301_B416 in filter B on MJD  58045.160
UIT301_B416 in filter B on MJD  58045.160
15.75± 0.05AbUIT301_B416 in filter R on MJD  58045.160
UIT301_B416 in filter R on MJD  58045.160
----
58073.19 16.05± 0.04AbUIT301_B416 in filter V on MJD  58073.190
UIT301_B416 in filter V on MJD  58073.190
16.09± 0.06AbUIT301_B416 in filter B on MJD  58073.190
UIT301_B416 in filter B on MJD  58073.190
--------
58103.16 16.16± 0.04AbUIT301_B416 in filter V on MJD  58103.160
UIT301_B416 in filter V on MJD  58103.160
UIT301_B416 in filter V on MJD  58103.160
16.27± 0.04bUIT301_B416 in filter B on MJD  58103.160
---- 15.68± 0.06bUIT301_B416 in filter I on MJD  58103.160
58108.13 16.03± 0.05AbUIT301_B416 in filter V on MJD  58108.130
UIT301_B416 in filter V on MJD  58108.130
16.12± 0.07AbUIT301_B416 in filter B on MJD  58108.130
UIT301_B416 in filter B on MJD  58108.130
---- 15.54± 0.07AbUIT301_B416 in filter I on MJD  58108.130
UIT301_B416 in filter I on MJD  58108.130
58312.39 16.05± 0.05bUIT301_B416 in filter V on MJD  58312.390
16.13± 0.07bUIT301_B416 in filter B on MJD  58312.390
--------
58316.38 16.03± 0.03bUIT301_B416 in filter V on MJD  58316.380
16.13± 0.05bUIT301_B416 in filter B on MJD  58316.380
15.69± 0.03bUIT301_B416 in filter R on MJD  58316.380
15.60± 0.04bUIT301_B416 in filter I on MJD  58316.380
58317.37 16.11± 0.04bUIT301_B416 in filter V on MJD  58317.370
16.19± 0.06bUIT301_B416 in filter B on MJD  58317.370
UIT301_B416 in filter B on MJD  58317.370
15.75± 0.04bUIT301_B416 in filter R on MJD  58317.370
UIT301_B416 in filter R on MJD  58317.370
----
58341.34 16.10± 0.07bUIT301_B416 in filter V on MJD  58341.340
-------- 15.64± 0.07bUIT301_B416 in filter I on MJD  58341.340
58342.38 16.18± 0.04AbUIT301_B416 in filter V on MJD  58342.380
UIT301_B416 in filter V on MJD  58342.380
16.26± 0.06AbUIT301_B416 in filter B on MJD  58342.380
UIT301_B416 in filter B on MJD  58342.380
15.79± 0.04AbUIT301_B416 in filter R on MJD  58342.380
UIT301_B416 in filter R on MJD  58342.380
15.68± 0.04bUIT301_B416 in filter I on MJD  58342.380
UIT301_B416 in filter I on MJD  58342.380
58375.14 16.12± 0.04bUIT301_B416 in filter V on MJD  58375.140
---- 15.75± 0.05bUIT301_B416 in filter R on MJD  58375.140
----
58420.08 16.00± 0.04AbUIT301_B416 in filter V on MJD  58420.080
UIT301_B416 in filter V on MJD  58420.080
16.07± 0.06AbUIT301_B416 in filter B on MJD  58420.080
UIT301_B416 in filter B on MJD  58420.080
15.67± 0.04bUIT301_B416 in filter R on MJD  58420.080
15.49± 0.06AbUIT301_B416 in filter I on MJD  58420.080
UIT301_B416 in filter I on MJD  58420.080
58433.00 16.18± 0.05bUIT301_B416 in filter V on MJD  58433.000
---- 15.81± 0.05bUIT301_B416 in filter R on MJD  58433.000
15.65± 0.06bUIT301_B416 in filter I on MJD  58433.000
58672.39 16.11± 0.07bUIT301_B416 in filter V on MJD  58672.390
---- 15.75± 0.06bUIT301_B416 in filter R on MJD  58672.390
15.64± 0.07bUIT301_B416 in filter I on MJD  58672.390
58673.38 16.28± 0.02bUIT301_B416 in filter V on MJD  58673.380
16.42± 0.03bUIT301_B416 in filter B on MJD  58673.380
--------
58695.36 16.07± 0.05bUIT301_B416 in filter V on MJD  58695.360
16.11± 0.05bUIT301_B416 in filter B on MJD  58695.360
15.74± 0.04bUIT301_B416 in filter R on MJD  58695.360
----
58696.39 16.08± 0.04bUIT301_B416 in filter V on MJD  58696.390
16.14± 0.06bUIT301_B416 in filter B on MJD  58696.390
UIT301_B416 in filter B on MJD  58696.390
15.74± 0.04bUIT301_B416 in filter R on MJD  58696.390
UIT301_B416 in filter R on MJD  58696.390
----
58779.15 15.94± 0.04bUIT301_B416 in filter V on MJD  58779.150
---- 15.58± 0.05bUIT301_B416 in filter R on MJD  58779.150
15.48± 0.07bUIT301_B416 in filter I on MJD  58779.150
58784.12 16.07± 0.05bUIT301_B416 in filter V on MJD  58784.120
16.11± 0.05bUIT301_B416 in filter B on MJD  58784.120
--------
58812.22 16.15± 0.04bUIT301_B416 in filter V on MJD  58812.220
-------- 15.68± 0.05bUIT301_B416 in filter I on MJD  58812.220
58902.06 16.09± 0.03AbUIT301_B416 in filter V on MJD  58902.060
UIT301_B416 in filter V on MJD  58902.060
---- 15.75± 0.04bUIT301_B416 in filter R on MJD  58902.060
15.62± 0.07bUIT301_B416 in filter I on MJD  58902.060
59056.38 16.12± 0.04bUIT301_B416 in filter V on MJD  59056.380
16.22± 0.06bUIT301_B416 in filter B on MJD  59056.380
15.73± 0.05bUIT301_B416 in filter R on MJD  59056.380
15.67± 0.07bUIT301_B416 in filter I on MJD  59056.380
59059.38 16.08± 0.05bUIT301_B416 in filter V on MJD  59059.380
16.12± 0.06bUIT301_B416 in filter B on MJD  59059.380
--------
59081.30 16.10± 0.04AbUIT301_B416 in filter V on MJD  59081.300
UIT301_B416 in filter V on MJD  59081.300
16.15± 0.06bUIT301_B416 in filter B on MJD  59081.300
15.77± 0.04AbUIT301_B416 in filter R on MJD  59081.300
UIT301_B416 in filter R on MJD  59081.300
----
59082.34 16.07± 0.03AbUIT301_B416 in filter V on MJD  59082.340
UIT301_B416 in filter V on MJD  59082.340
16.14± 0.05AbUIT301_B416 in filter B on MJD  59082.340
UIT301_B416 in filter B on MJD  59082.340
UIT301_B416 in filter B on MJD  59082.340
15.73± 0.05AbUIT301_B416 in filter R on MJD  59082.340
UIT301_B416 in filter R on MJD  59082.340
UIT301_B416 in filter R on MJD  59082.340
UIT301_B416 in filter R on MJD  59082.340
----
59084.31-------- 15.70± 0.05TbUIT301_B416 in filter R on MJD  59084.310
UIT301_B416 in filter R on MJD  59084.310
----
59161.09 16.20± 0.04AbUIT301_B416 in filter V on MJD  59161.090
UIT301_B416 in filter V on MJD  59161.090
16.28± 0.05AbUIT301_B416 in filter B on MJD  59161.090
UIT301_B416 in filter B on MJD  59161.090
15.81± 0.04AbUIT301_B416 in filter R on MJD  59161.090
UIT301_B416 in filter R on MJD  59161.090
----
59171.09 16.18± 0.04AbUIT301_B416 in filter V on MJD  59171.090
UIT301_B416 in filter V on MJD  59171.090
UIT301_B416 in filter V on MJD  59171.090
16.25± 0.05AbUIT301_B416 in filter B on MJD  59171.090
UIT301_B416 in filter B on MJD  59171.090
15.74± 0.05bUIT301_B416 in filter R on MJD  59171.090
15.69± 0.07AbUIT301_B416 in filter I on MJD  59171.090
UIT301_B416 in filter I on MJD  59171.090
UIT301_B416 in filter I on MJD  59171.090
59227.08 16.18± 0.03AbUIT301_B416 in filter V on MJD  59227.080
UIT301_B416 in filter V on MJD  59227.080
UIT301_B416 in filter V on MJD  59227.080
16.26± 0.05AbUIT301_B416 in filter B on MJD  59227.080
UIT301_B416 in filter B on MJD  59227.080
UIT301_B416 in filter B on MJD  59227.080
15.82± 0.05AbUIT301_B416 in filter R on MJD  59227.080
UIT301_B416 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 UIT301_B416Plot of color for UIT301_B416

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 [0.35 mag]B [0.35 mag]R [0.35 mag]
B [0.35 mag]0.81 (30)
R [0.35 mag]0.53 (29)0.68 (21)
I [0.21 mag]0.90 (18)0.72 (11)0.40 (14)

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 UIT301_B416

Plot to assess correlation between bands for UIT301_B416

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)
3.86 | 1.00
R
(I|R)
1.80 | 1.241.08 | 0.11
I
(I|R)
1.76 | 1.681.64 | 1.421.31 | 1.55

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