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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185204971 (SMSS J172833.32-202242.6)

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Data releaseDR4
RA (deg)262.139
Dec (deg)-20.378
Galactic lon. (deg)5.190
Galactic lat. (deg)7.839
E(B-V) (SFD98) (mag)0.846
E(B-V) (GNILC) (mag)0.662 ± 0.029
Nearest DR4 source 2275912061 (3.3 arcs away)
2nd-nearest DR4 source 185204972 (5.9 arcs away)
3rd-nearest DR4 source 179911099 (6.2 arcs away)
Times observed41
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.512 ± 0.020 16.449 ± 0.012 15.588 ± 0.009 15.101 ± 0.009
Petrosian mag. — — 17.416 ± 0.061 16.244 ± 0.06 15.570 ± 0.034 15.113 ± 0.028

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 17.561 ± 0.068 0,0 5 2
g 20140722114132 17.530 ± 0.064 0,0 5 2
g 20140729111106 17.587 ± 0.058 0,0 5 2
g 20160420172300 17.627 ± 0.093 0,0 5 2
g 20180605125705 17.340 ± 0.080 0,0 5 2
g 20190505165725 17.545 ± 0.033 0,0 100 2
g 20190506165109 17.502 ± 0.029 3,0 100 2
g 20190507143127 17.517 ± 0.045 0,0 100 2
r 20140719114939 16.457 ± 0.045 0,0 5 2
r 20140722114203 16.438 ± 0.042 0,0 5 2
r 20140729111131 16.429 ± 0.036 0,0 5 2
r 20160420172325 16.478 ± 0.042 0,0 5 2
r 20180605125736 16.440 ± 0.048 0,0 5 2
r 20190505165926 16.467 ± 0.038 0,0 100 2
r 20190506165309 16.434 ± 0.031 1,0 100 2
r 20190507143327 16.442 ± 0.045 0,0 100 2
r 20210411183015 16.495 ± 0.049 0,0 5 2
i 20140719115004 15.563 ± 0.036 0,0 10 2
i 20140722114229 15.596 ± 0.038 0,0 10 2
i 20140729111202 15.618 ± 0.034 0,0 10 2
i 20150901084153 15.583 ± 0.032 3,0 100 2
i 20150901084554 15.579 ± 0.031 3,0 100 2
i 20160420172350 15.607 ± 0.029 0,0 10 2
i 20180605125802 15.658 ± 0.038 0,0 10 2
i 20190505170526 15.599 ± 0.037 3,0 100 2
i 20190508164002 15.585 ± 0.035 0,0 100 2
i 20190509140533 15.58 ± 0.051 3,0 100 2
i 20190720124743 15.612 ± 0.071 17,0 100 2
i 20200513190610 15.594 ± 0.032 0,0 100 2
i 20210411183047 15.649 ± 0.039 0,0 10 2
z 20140719115035 15.087 ± 0.035 0,0 20 2
z 20140722114259 15.091 ± 0.034 0,0 20 2
z 20140729111235 15.087 ± 0.030 0,0 20 2
z 20150901084353 15.093 ± 0.031 3,0 100 2
z 20150901084754 15.099 ± 0.032 3,0 100 2
z 20160420172420 15.089 ± 0.033 0,0 20 2
z 20180605125833 15.148 ± 0.031 0,0 20 2
z 20190505170726 15.111 ± 0.036 3,0 100 2
z 20190508164202 15.107 ± 0.028 0,0 100 2
z 20190509140733 15.108 ± 0.053 2,0 100 2
z 20200513190811 15.115 ± 0.036 0,0 100 2
z 20210411183118 15.170 ± 0.034 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.12 2.68
GAIA source ID 4121064693031698304 4121064693015641216
Bp mag. 17.325 20.885
G mag. 16.243 20.772
Rp mag. 15.229 18.956
Bp/Rp excess 1.338 2.896
Parallax (mas) 0.027 ± 0.058 -- ± --
PM RA (mas/yr) -1.519 ± 0.059 -- ± --
PM Dec (mas/yr) -6.559 ± 0.043 -- ± --
A.E.N. (mas) 0.0 ± 0.0 2.778 ± 1.218

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r -- ± --
i -- ± --
z -- ± --
Y -- ± --
J 13.622 ± 0.019
H 12.817 ± 0.022
K 12.541 ± 0.027
W1 12.406 ± 0.012
W2 12.55 ± 0.011
W3 11.856 ± --
W4 8.955 ± --
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.