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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 184980990 (SMSS J172113.18-201427.7)

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Data releaseDR4
RA (deg)260.3049
Dec (deg)-20.2412
Galactic lon. (deg)4.3530
Galactic lat. (deg)9.3537
E(B-V) (SFD98) (mag)0.468
E(B-V) (GNILC) (mag)0.392 ± 0.017
Nearest DR4 source 2275599610 (4.4 arcs away)
2nd-nearest DR4 source 184980991 (7.3 arcs away)
3rd-nearest DR4 source 184980987 (7.4 arcs away)
Times observed44
Total bad pixels11
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 18.957 ± 0.051 18.575 ± 0.038 16.198 ± 0.012 15.398 ± 0.014 14.830 ± 0.015 14.525 ± 0.015
Petrosian mag. 19.086 ± 0.116 18.784 ± 0.123 15.89 ± 0.086 15.190 ± 0.054 14.647 ± 0.067 14.415 ± 0.071

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)
u 20180718114922 19.040 ± 0.119 0,0 100 1
u 20180718115729 19.078 ± 0.11 0,0 100 2
v 20180718115124 18.623 ± 0.065 0,0 100 1
v 20180718115931 18.570 ± 0.061 0,0 100 1
v 20210406183607 18.666 ± 0.120 0,0 100 1
g 20140626130919 16.235 ± 0.032 0,0 5 2
g 20140627130802 16.211 ± 0.034 0,0 5 2
g 20140719114131 16.192 ± 0.031 0,0 5 2
g 20160420170043 16.259 ± 0.037 0,0 5 2
g 20180315174626 16.173 ± 0.038 0,0 5 2
g 20180718115326 16.188 ± 0.038 3,0 100 2
g 20180801105218 16.211 ± 0.041 3,0 100 2
g 20190822092753 16.211 ± 0.037 3,0 100 2
g 20200224174822 16.187 ± 0.045 3,0 100 2
g 20200524153348 16.182 ± 0.048 0,0 5 3
g 20210407183532 16.245 ± 0.035 0,0 5 2
r 20140626130951 15.412 ± 0.030 0,0 5 2
r 20140627130827 15.388 ± 0.029 0,0 5 2
r 20140719114202 15.410 ± 0.032 0,0 5 2
r 20160420170109 15.409 ± 0.022 0,0 5 2
r 20180315174652 15.406 ± 0.033 0,0 5 2
r 20180718115528 15.408 ± 0.037 3,0 100 2
r 20180801105419 15.443 ± 0.045 3,0 100 2
r 20180802115408 15.425 ± 0.040 3,0 100 2
r 20190822092953 15.407 ± 0.033 3,0 100 2
r 20200524153415 15.407 ± 0.036 0,0 5 2
r 20210407183558 15.443 ± 0.034 0,0 5 2
i 20140626131016 14.855 ± 0.032 1,0 10 2
i 20140627130852 14.863 ± 0.031 0,0 10 2
i 20140719114228 14.827 ± 0.027 0,0 10 2
i 20150831085034 14.840 ± 0.037 3,0 100 2
i 20160420170134 14.850 ± 0.030 0,3 10 2
i 20180315174718 14.865 ± 0.032 0,0 10 2
i 20180718120132 14.841 ± 0.045 3,3 100 2
i 20190416152010 14.822 ± 0.033 3,1 100 2
i 20190806103155 14.856 ± 0.035 19,0 100 2
i 20200524153441 14.833 ± 0.032 0,0 10 2
i 20210407183626 14.868 ± 0.028 0,0 10 2
z 20140626131048 14.539 ± 0.025 3,0 20 2
z 20140627130923 14.533 ± 0.032 0,0 20 2
z 20140719114300 14.518 ± 0.025 2,0 20 2
z 20160420170204 14.529 ± 0.021 0,3 20 2
z 20180315174748 14.535 ± 0.032 0,0 20 2
z 20180718120334 14.537 ± 0.043 3,0 100 2
z 20190416152212 14.524 ± 0.039 3,1 100 2
z 20190806103356 14.567 ± 0.034 19,0 100 2
z 20200524153511 14.538 ± 0.031 0,0 20 3
z 20210407183658 14.534 ± 0.028 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.04 4.27
GAIA source ID 4121949147032177920 4121949146985959168
Bp mag. 16.122 --
G mag. 15.366 19.65
Rp mag. 14.494 --
Bp/Rp excess 1.300 --
Parallax (mas) 0.440 ± 0.062 0.137 ± 0.631
PM RA (mas/yr) -0.882 ± 0.063 -1.586 ± 0.715
PM Dec (mas/yr) -7.698 ± 0.044 -3.106 ± 0.553
A.E.N. (mas) 0.293 ± 16.063 0.144 ± 0.022

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 16.461 ± 0.002
r 15.478 ± 0.002
i 15.006 ± 0.001
z 14.743 ± 0.001
Y -- ± --
J 13.297 ± 0.03
H 12.632 ± 0.025
K 12.525 ± 0.034
W1 12.293 ± 0.013
W2 12.414 ± 0.011
W3 12.179 ± 0.393
W4 8.693 ± --
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.