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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900600 (SMSS J172818.04-203632.9)

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Data releaseDR4
RA (deg)262.0752
Dec (deg)-20.6092
Galactic lon. (deg)4.9614
Galactic lat. (deg)7.7644
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900650 (8.8 arcs away)
2nd-nearest DR4 source 179900598 (9.4 arcs away)
3rd-nearest DR4 source 179900627 (9.5 arcs away)
Times observed36
Total bad pixels2
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.504 ± 0.013 17.571 ± 0.015 16.879 ± 0.010 16.499 ± 0.011
Petrosian mag. — — 18.532 ± 0.038 17.547 ± 0.078 16.928 ± 0.018 16.610 ± 0.035

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 20190505165725 18.475 ± 0.034 1,0 100 2
g 20190506165109 18.506 ± 0.030 0,0 100 2
g 20190507143127 18.485 ± 0.051 0,0 100 2
g 20190822094124 18.526 ± 0.034 3,0 100 2
r 20140719114939 17.663 ± 0.097 0,0 5 2
r 20140722114203 17.592 ± 0.08 0,0 5 2
r 20160420172325 17.379 ± 0.079 0,0 5 2
r 20190505165926 17.554 ± 0.034 1,0 100 2
r 20190506165309 17.533 ± 0.032 1,0 100 2
r 20190507143327 17.528 ± 0.049 3,0 100 2
r 20190822094324 17.575 ± 0.033 3,0 100 2
r 20210407183558 17.520 ± 0.091 0,0 5 2
i 20140719115004 16.843 ± 0.057 0,0 10 2
i 20140722114229 16.888 ± 0.057 0,0 10 2
i 20150901084153 16.881 ± 0.034 0,0 100 2
i 20160420172350 16.965 ± 0.068 0,2 10 2
i 20180605125802 17.062 ± 0.089 0,0 10 2
i 20190505170526 16.857 ± 0.035 0,0 100 2
i 20190508164002 16.906 ± 0.043 1,0 100 2
i 20190509140533 16.854 ± 0.053 3,0 100 2
i 20190720124743 16.842 ± 0.063 1,0 100 2
i 20200513190610 16.904 ± 0.040 0,0 100 2
i 20200524153441 16.863 ± 0.067 0,0 10 2
i 20210407183626 16.825 ± 0.062 0,0 10 2
z 20140719115035 16.561 ± 0.062 0,0 20 2
z 20140722114259 16.451 ± 0.049 0,0 20 2
z 20150901084353 16.447 ± 0.033 0,0 100 2
z 20160420172420 16.497 ± 0.056 0,0 20 2
z 20180605125833 16.581 ± 0.079 0,0 20 2
z 20190505170726 16.476 ± 0.037 0,0 100 2
z 20190508164202 16.545 ± 0.040 0,0 100 2
z 20190509140733 16.497 ± 0.058 0,0 100 2
z 20190720124943 16.457 ± 0.061 0,0 100 2
z 20200513190811 16.494 ± 0.047 0,0 100 2
z 20200524153511 16.431 ± 0.070 0,0 20 3
z 20210407183658 16.588 ± 0.068 0,0 20 2
z 20210411183118 16.640 ± 0.074 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.16 2.29
GAIA source ID 4121022288746553344 4121022189999746688
Bp mag. 18.359 20.545
G mag. 17.482 20.286
Rp mag. 16.511 18.791
Bp/Rp excess 1.352 2.239
Parallax (mas) 0.062 ± 0.141 -2.019 ± 1.425
PM RA (mas/yr) -5.295 ± 0.121 -3.095 ± 1.340
PM Dec (mas/yr) -2.470 ± 0.108 -4.246 ± 1.060
A.E.N. (mas) 0.0 ± 0.0 1.881 ± 1.343

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.503 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 15.149 ± 0.006
H -- ± --
K 14.393 ± 0.009
W1 14.212 ± 0.026
W2 14.472 ± 0.043
W3 12.371 ± --
W4 8.794 ± --
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.