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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900616 (SMSS J172814.50-203539.7)

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Data releaseDR4
RA (deg)262.0603
Dec (deg)-20.5943
Galactic lon. (deg)4.9663
Galactic lat. (deg)7.7841
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.706 ± 0.035
Nearest DR4 source 179900702 (5.2 arcs away)
2nd-nearest DR4 source 179900615 (5.3 arcs away)
3rd-nearest DR4 source 1212979962 (6.3 arcs away)
Times observed35
Total bad pixels1
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.158 ± 0.055 17.443 ± 0.032 16.852 ± 0.030 16.529 ± 0.031
Petrosian mag. — — 17.388 ± 0.054 16.761 ± 0.120 16.291 ± 0.103 16.215 ± 0.089

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 20160420172300 18.195 ± 0.141 0,0 5 2
g 20190505165725 18.229 ± 0.032 1,0 100 2
g 20190507143127 18.255 ± 0.049 1,0 100 2
g 20190822094124 18.241 ± 0.031 3,0 100 2
r 20140719114939 17.356 ± 0.076 0,0 5 2
r 20140722114203 17.403 ± 0.069 0,0 5 2
r 20160420172325 17.385 ± 0.080 0,1 5 2
r 20190505165926 17.477 ± 0.033 3,0 100 2
r 20190507143327 17.476 ± 0.048 1,0 100 2
r 20190822094324 17.494 ± 0.032 3,0 100 2
r 20210407183558 17.459 ± 0.087 0,0 5 2
i 20140719115004 16.785 ± 0.055 0,0 10 2
i 20140722114229 16.82 ± 0.056 0,0 10 2
i 20150901084153 16.782 ± 0.033 3,8 100 2
i 20160420172350 16.767 ± 0.059 0,0 10 2
i 20180605124636 16.940 ± 0.072 16,3 10 2
i 20180605125802 16.939 ± 0.081 0,0 10 2
i 20190505170526 16.785 ± 0.034 3,0 100 2
i 20190508164002 16.872 ± 0.042 1,0 100 2
i 20190509140533 16.846 ± 0.053 3,0 100 2
i 20190720124743 16.848 ± 0.063 1,0 100 2
i 20200513190610 16.899 ± 0.040 1,0 100 2
i 20200524153441 16.921 ± 0.070 0,0 10 2
i 20210407183626 16.788 ± 0.061 0,0 10 2
i 20210411183047 16.940 ± 0.081 0,0 10 2
z 20140719115035 16.484 ± 0.059 0,0 20 2
z 20140722114259 16.503 ± 0.051 0,0 20 2
z 20150901084353 16.493 ± 0.034 3,0 100 2
z 20160420172420 16.448 ± 0.054 0,0 20 2
z 20180605124707 16.540 ± 0.064 16,0 20 2
z 20180605125833 16.854 ± 0.098 0,0 20 2
z 20190505170726 16.524 ± 0.038 3,0 100 2
z 20190508164202 16.507 ± 0.039 3,0 100 2
z 20190509140733 16.577 ± 0.059 3,0 100 2
z 20190720124943 16.548 ± 0.062 1,0 100 2
z 20200513190811 16.490 ± 0.047 1,0 100 2
z 20200524153511 16.548 ± 0.076 0,0 20 3
z 20210407183658 16.637 ± 0.070 0,0 20 2
z 20210411183118 16.597 ± 0.072 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.29 1.86
GAIA source ID 4121034039781095552 4121034044103092992
Bp mag. 18.309 --
G mag. 17.578 20.140
Rp mag. 16.675 --
Bp/Rp excess 1.337 --
Parallax (mas) 0.767 ± 0.129 -2.401 ± 1.070
PM RA (mas/yr) -9.382 ± 0.133 1.158 ± 1.175
PM Dec (mas/yr) 5.798 ± 0.102 -7.298 ± 0.838
A.E.N. (mas) 0.0 ± 0.0 1.463 ± 0.863

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.638 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 15.481 ± 0.007
H -- ± --
K 14.853 ± 0.014
W1 14.331 ± 0.011
W2 14.423 ± 0.022
W3 12.306 ± --
W4 8.916 ± --
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.