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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900669 (SMSS J172818.87-203610.4)

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Data releaseDR4
RA (deg)262.0786
Dec (deg)-20.6029
Galactic lon. (deg)4.9685
Galactic lat. (deg)7.7651
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900628 (11.1 arcs away)
2nd-nearest DR4 source 179900670 (14.7 arcs away)
Times observed49
Total bad pixels5
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 18.495 ± 0.060 18.486 ± 0.034 15.420 ± 0.010 14.364 ± 0.009 13.551 ± 0.009 13.080 ± 0.01
Petrosian mag. 18.715 ± 0.191 18.731 ± 0.113 15.399 ± 0.011 14.347 ± 0.008 13.547 ± 0.008 13.083 ± 0.009

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 20190505165326 18.651 ± 0.103 0,0 100 2
u 20190505170125 18.464 ± 0.093 0,0 100 2
v 20190505165526 18.557 ± 0.071 0,0 100 1
v 20190505170325 18.470 ± 0.066 0,0 100 1
g 20140719114908 15.449 ± 0.025 0,0 5 2
g 20140722114132 15.433 ± 0.024 0,0 5 2
g 20160420172300 15.429 ± 0.023 0,4 5 2
g 20180605125705 15.425 ± 0.026 0,0 5 2
g 20190505165725 15.422 ± 0.026 3,0 100 2
g 20190506165109 15.417 ± 0.021 3,0 100 2
g 20190507143127 15.420 ± 0.043 3,0 100 2
g 20190822094124 15.423 ± 0.026 3,0 100 2
g 20200524153348 15.373 ± 0.032 0,0 5 3
g 20210407183532 15.420 ± 0.028 0,0 5 2
g 20210411182948 15.437 ± 0.024 0,0 5 3
r 20140719114939 14.377 ± 0.026 0,0 5 2
r 20140722114203 14.367 ± 0.023 0,0 5 2
r 20160420172325 14.367 ± 0.016 0,0 5 2
r 20180605125736 14.381 ± 0.021 0,0 5 2
r 20190505165926 14.357 ± 0.029 3,0 100 2
r 20190506165309 14.375 ± 0.028 3,0 100 2
r 20190507143327 14.369 ± 0.045 3,1 100 2
r 20190822094324 14.364 ± 0.028 3,0 100 2
r 20200524153415 14.359 ± 0.034 0,0 5 2
r 20210407183558 14.370 ± 0.028 0,0 5 2
r 20210411183015 14.378 ± 0.022 0,0 5 2
i 20140719115004 13.549 ± 0.024 0,0 10 2
i 20140722114229 13.538 ± 0.030 0,0 10 2
i 20150901084153 13.561 ± 0.028 2,0 100 2
i 20160420172350 13.544 ± 0.021 0,0 10 2
i 20180605125802 13.554 ± 0.030 2,0 10 2
i 20190505170526 13.549 ± 0.030 3,0 100 2
i 20190508164002 13.554 ± 0.034 3,0 100 2
i 20190509140533 13.556 ± 0.050 3,0 100 2
i 20190720124743 13.540 ± 0.060 3,0 100 2
i 20200513190610 13.559 ± 0.030 3,0 100 2
i 20200524153441 13.543 ± 0.030 2,0 10 2
i 20210407183626 13.545 ± 0.028 0,0 10 2
i 20210411183047 13.560 ± 0.034 3,0 10 2
z 20140719115035 13.076 ± 0.027 2,0 20 2
z 20140722114259 13.063 ± 0.026 0,0 20 2
z 20150901084353 13.080 ± 0.025 2,0 100 2
z 20160420172420 13.086 ± 0.021 0,0 20 2
z 20180605125833 13.084 ± 0.027 0,0 20 2
z 20190505170726 13.072 ± 0.028 2,0 100 2
z 20190508164202 13.068 ± 0.026 3,0 100 2
z 20190509140733 13.076 ± 0.052 3,0 100 2
z 20190720124943 13.066 ± 0.057 3,0 100 2
z 20200513190811 13.075 ± 0.033 3,0 100 2
z 20200524153511 13.083 ± 0.030 3,0 20 3
z 20210407183658 13.078 ± 0.026 0,0 20 2
z 20210411183118 13.107 ± 0.027 3,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.17 2.38
GAIA source ID 4121022293109730560 4121022293072342144
Bp mag. 15.249 --
G mag. 14.455 18.297
Rp mag. 13.205 --
Bp/Rp excess 1.681 --
Parallax (mas) 0.604 ± 0.045 0.419 ± 0.214
PM RA (mas/yr) -1.337 ± 0.048 -1.573 ± 0.200
PM Dec (mas/yr) -6.847 ± 0.037 -2.188 ± 0.169
A.E.N. (mas) 0.215 ± 17.420 0.193 ± 0.279

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r -- ± --
i -- ± --
z -- ± --
Y -- ± --
J 11.616 ± 0.019
H 10.911 ± 0.022
K 10.652 ± 0.019
W1 10.495 ± 0.013
W2 10.604 ± 0.009
W3 10.697 ± 0.147
W4 8.413 ± --
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.