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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185207043 (SMSS J172804.87-201155.8)

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Data releaseDR4
RA (deg)262.0203
Dec (deg)-20.1989
Galactic lon. (deg)5.2811
Galactic lat. (deg)8.0303
E(B-V) (SFD98) (mag)0.756
E(B-V) (GNILC) (mag)0.627 ± 0.033
Nearest DR4 source 185207040 (6.0 arcs away)
2nd-nearest DR4 source 185207050 (10.9 arcs away)
3rd-nearest DR4 source 185207042 (11.1 arcs away)
Times observed49
Total bad pixels4
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 18.426 ± 0.161 18.245 ± 0.041 15.457 ± 0.014 14.474 ± 0.014 13.65 ± 0.012 13.195 ± 0.012
Petrosian mag. 18.499 ± 0.365 18.137 ± 0.121 15.279 ± 0.038 14.314 ± 0.040 13.520 ± 0.032 13.082 ± 0.032

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 18.339 ± 0.077 0,0 100 2
u 20190505170125 18.577 ± 0.086 0,0 100 2
v 20190505165526 18.207 ± 0.052 0,0 100 1
v 20190505170325 18.306 ± 0.050 0,0 100 1
v 20190505171125 18.189 ± 0.047 0,0 100 1
v 20210412150202 18.065 ± 0.083 0,0 100 1
g 20140719114908 15.499 ± 0.028 0,0 5 2
g 20140729111106 15.452 ± 0.026 2,0 5 2
g 20160420172300 15.463 ± 0.020 0,0 5 2
g 20180605124544 15.507 ± 0.025 0,0 5 2
g 20180605125705 15.465 ± 0.031 0,0 5 2
g 20190505165725 15.503 ± 0.031 3,0 100 2
g 20190506165109 15.515 ± 0.025 3,0 100 2
g 20190507143127 15.502 ± 0.043 3,0 100 2
g 20190822094124 15.508 ± 0.037 3,0 100 2
g 20200524153348 15.479 ± 0.034 2,0 5 3
g 20210407183532 15.487 ± 0.024 0,0 5 2
r 20140719114939 14.509 ± 0.030 0,0 5 2
r 20140729111131 14.462 ± 0.025 2,0 5 2
r 20160420172325 14.488 ± 0.017 2,1 5 2
r 20180605125736 14.523 ± 0.025 0,0 5 2
r 20190505165926 14.498 ± 0.037 3,0 100 2
r 20190506165309 14.501 ± 0.030 3,0 100 2
r 20190507143327 14.492 ± 0.044 3,0 100 2
r 20190822094324 14.495 ± 0.041 3,0 100 2
r 20200524153415 14.487 ± 0.034 3,0 5 2
r 20210407183558 14.502 ± 0.035 0,0 5 2
i 20140719115004 13.660 ± 0.031 2,0 10 2
i 20140729111202 13.658 ± 0.028 3,0 10 2
i 20150901084153 13.651 ± 0.031 19,0 100 2
i 20150901084554 13.677 ± 0.032 3,0 100 2
i 20160420172350 13.646 ± 0.018 2,3 10 2
i 20180605124636 13.675 ± 0.023 3,0 10 2
i 20180605125802 13.669 ± 0.029 3,0 10 2
i 20190505170526 13.662 ± 0.036 3,0 100 2
i 20190508164002 13.664 ± 0.034 3,0 100 2
i 20190509140533 13.793 ± 0.059 3,0 100 2
i 20190720124743 13.648 ± 0.071 3,0 100 2
i 20200524153441 13.662 ± 0.028 3,0 10 2
i 20210407183626 13.671 ± 0.028 2,0 10 2
z 20140719115035 13.200 ± 0.031 3,0 20 2
z 20140729111235 13.189 ± 0.030 3,0 20 2
z 20150901084353 13.185 ± 0.03 19,0 100 2
z 20150901084754 13.196 ± 0.031 3,0 100 2
z 20160420172420 13.194 ± 0.028 3,0 20 2
z 20180605124707 13.209 ± 0.019 3,0 20 2
z 20180605125833 13.231 ± 0.024 3,0 20 2
z 20190505170726 13.191 ± 0.035 3,0 100 2
z 20190508164202 13.192 ± 0.026 3,0 100 2
z 20190509140733 13.208 ± 0.056 3,0 100 2
z 20190720124943 13.177 ± 0.064 3,0 100 2
z 20200524153511 13.185 ± 0.027 3,0 20 3
z 20210407183658 13.205 ± 0.030 1,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.2 3.84
GAIA source ID 4121261226368111104 4121261230689595392
Bp mag. 15.313 20.590
G mag. 14.297 20.415
Rp mag. 13.303 18.875
Bp/Rp excess 1.336 2.356
Parallax (mas) 0.320 ± 0.026 0.019 ± 1.071
PM RA (mas/yr) -0.917 ± 0.029 1.428 ± 1.966
PM Dec (mas/yr) -4.883 ± 0.020 -4.297 ± 1.282
A.E.N. (mas) 0.0 ± 0.0 2.199 ± 1.797

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 14.580 ± 0.005
i -- ± --
z -- ± --
Y -- ± --
J 11.776 ± 0.021
H 11.046 ± 0.024
K 10.777 ± 0.017
W1 10.616 ± 0.011
W2 10.729 ± 0.009
W3 10.472 ± 0.091
W4 8.128 ± --
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.