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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900594 (SMSS J172816.45-203643.3)

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Data releaseDR4
RA (deg)262.0686
Dec (deg)-20.6120
Galactic lon. (deg)4.9555
Galactic lat. (deg)7.7680
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900595 (5.9 arcs away)
2nd-nearest DR4 source 1212979842 (6.0 arcs away)
3rd-nearest DR4 source 179900597 (10.2 arcs away)
Times observed42
Total bad pixels5
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.903 ± 0.017 16.804 ± 0.013 15.935 ± 0.010 15.432 ± 0.011
Petrosian mag. — — 17.907 ± 0.027 16.813 ± 0.031 15.951 ± 0.027 15.509 ± 0.021

2 x 2 arcmin

Image cutouts

See all image cutouts for this object here.
Images shown are the best images available from DR4, as determined by their coverage and approximate photometric zero-point.

Photometry measurements

Filter Image ID Magnitude (APC05) Flags Exp time (s) Image Quality
(1=best to 3)
g 20140719114908 17.905 ± 0.087 0,0 5 2
g 20140722114132 18.014 ± 0.088 0,0 5 2
g 20160420172300 17.806 ± 0.101 0,0 5 2
g 20190505165725 17.919 ± 0.030 3,0 100 2
g 20190506165109 17.912 ± 0.025 3,0 100 2
g 20190507143127 17.946 ± 0.046 3,0 100 2
g 20190822094124 17.926 ± 0.029 3,0 100 2
r 20140719114939 16.896 ± 0.055 0,0 5 2
r 20140722114203 16.870 ± 0.048 0,0 5 2
r 20160420172325 16.825 ± 0.051 0,0 5 2
r 20180605125736 16.818 ± 0.061 0,2 5 2
r 20190505165926 16.793 ± 0.030 3,0 100 2
r 20190506165309 16.780 ± 0.029 3,0 100 2
r 20190507143327 16.800 ± 0.046 3,0 100 2
r 20200524153415 16.764 ± 0.060 0,0 5 2
r 20210407183558 16.934 ± 0.060 0,0 5 2
r 20210411183015 16.903 ± 0.063 0,0 5 2
i 20140719115004 15.924 ± 0.034 0,0 10 2
i 20140722114229 15.947 ± 0.038 0,0 10 2
i 20150901084153 15.945 ± 0.029 3,0 100 2
i 20160420172350 15.992 ± 0.035 0,0 10 2
i 20180605125802 15.958 ± 0.044 0,3 10 2
i 20190505170526 15.917 ± 0.031 3,0 100 2
i 20190508164002 15.935 ± 0.036 3,0 100 2
i 20190509140533 15.934 ± 0.050 3,0 100 2
i 20190720124743 15.920 ± 0.061 3,0 100 2
i 20200513190610 15.951 ± 0.032 3,0 100 2
i 20200524153441 15.967 ± 0.041 0,0 10 2
i 20210407183626 15.952 ± 0.039 0,0 10 2
i 20210411183047 15.980 ± 0.047 0,0 10 2
z 20140719115035 15.437 ± 0.034 0,0 20 2
z 20140722114259 15.431 ± 0.032 0,0 20 2
z 20150901084353 15.430 ± 0.026 0,0 100 2
z 20160420172420 15.473 ± 0.030 0,0 20 2
z 20180605125833 15.528 ± 0.040 0,0 20 2
z 20190505170726 15.423 ± 0.030 0,0 100 2
z 20190508164202 15.435 ± 0.029 0,0 100 2
z 20190509140733 15.436 ± 0.053 0,0 100 2
z 20190720124943 15.407 ± 0.058 3,0 100 2
z 20200513190811 15.449 ± 0.036 0,0 100 2
z 20200524153511 15.467 ± 0.041 0,0 20 3
z 20210407183658 15.475 ± 0.036 0,0 20 2
z 20210411183118 15.557 ± 0.039 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.1 4.22
GAIA source ID 4121022190030514304 4121022190001391616
Bp mag. 17.665 21.597
G mag. 16.573 20.660
Rp mag. 15.548 19.848
Bp/Rp excess 1.347 1.195
Parallax (mas) 0.209 ± 0.076 1.059 ± 2.574
PM RA (mas/yr) -3.941 ± 0.075 0.993 ± 2.805
PM Dec (mas/yr) -3.132 ± 0.059 -4.414 ± 1.705
A.E.N. (mas) 0.105 ± 0.641 1.914 ± 0.538

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.803 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 13.929 ± 0.026
H 13.185 ± 0.022
K 12.944 ± 0.026
W1 12.731 ± 0.013
W2 12.92 ± 0.011
W3 12.223 ± --
W4 8.758 ± --
1Magnitude sources
FUV/NUV: AB mag (calibrated) from GALEX
ugriz: AB mag (Kron) from NOAO Source Catalog
YJHK: Vega mag from VISTA (2" aperture) or 2MASS PSC
W1-W4: Vega mag from CatWISE2020 or AllWISE (profile mag). No error value means the stated value is an upper limit.