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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179909129 (SMSS J172801.91-202635.6)

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Data releaseDR4
RA (deg)262.008
Dec (deg)-20.443
Galactic lon. (deg)5.068
Galactic lat. (deg)7.907
E(B-V) (SFD98) (mag)0.814
E(B-V) (GNILC) (mag)0.615 ± 0.023
Nearest DR4 source 179909143 (7.1 arcs away)
2nd-nearest DR4 source 2268148760 (8.5 arcs away)
3rd-nearest DR4 source 179909132 (8.7 arcs away)
Times observed37
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — 19.055 ± 0.061 16.621 ± 0.011 15.841 ± 0.011 15.282 ± 0.009 14.998 ± 0.011
Petrosian mag. — 19.411 ± 0.173 16.660 ± 0.032 15.904 ± 0.020 15.340 ± 0.014 15.093 ± 0.011

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)
v 20190505165526 19.071 ± 0.106 0,0 100 1
g 20140719114908 16.638 ± 0.039 0,0 5 2
g 20140729111106 16.592 ± 0.035 0,0 5 2
g 20160420172300 16.616 ± 0.041 0,0 5 2
g 20190505165725 16.609 ± 0.032 3,0 100 2
g 20190507143127 16.612 ± 0.044 3,0 100 2
g 20190822094124 16.611 ± 0.037 3,0 100 2
g 20200524153348 16.722 ± 0.056 0,0 5 3
g 20210407183532 16.636 ± 0.039 0,0 5 2
r 20140719114939 15.903 ± 0.037 0,0 5 2
r 20140729111131 15.830 ± 0.030 0,0 5 2
r 20160420172325 15.849 ± 0.028 0,0 5 2
r 20190505165926 15.821 ± 0.038 3,0 100 2
r 20190507143327 15.834 ± 0.045 3,0 100 2
r 20190822094324 15.823 ± 0.041 3,0 100 2
r 20200524153415 15.816 ± 0.041 0,0 5 2
r 20210407183558 15.839 ± 0.041 0,0 5 2
i 20140719115004 15.284 ± 0.034 0,0 10 2
i 20140729111202 15.283 ± 0.031 0,0 10 2
i 20150901084554 15.280 ± 0.032 1,0 100 2
i 20160420172350 15.301 ± 0.025 0,0 10 2
i 20190505170526 15.264 ± 0.037 1,0 100 2
i 20190508164002 15.279 ± 0.035 3,0 100 2
i 20190509140533 15.264 ± 0.050 3,0 100 2
i 20190720124743 15.253 ± 0.071 3,0 100 2
i 20200513190610 15.277 ± 0.031 3,0 100 2
i 20200524153441 15.273 ± 0.034 0,0 10 2
i 20210407183626 15.286 ± 0.032 0,0 10 2
z 20140719115035 15.026 ± 0.034 0,0 20 2
z 20140729111235 14.997 ± 0.033 0,0 20 2
z 20150901084754 15.003 ± 0.032 0,0 100 2
z 20160420172420 15.039 ± 0.032 0,0 20 2
z 20190505170726 14.975 ± 0.035 0,0 100 2
z 20190508164202 14.993 ± 0.028 0,0 100 2
z 20190509140733 14.989 ± 0.052 0,0 100 2
z 20190720124943 14.969 ± 0.064 1,0 100 2
z 20200513190811 15.004 ± 0.035 0,0 100 2
z 20200524153511 15.066 ± 0.036 0,0 20 3
z 20210407183658 14.999 ± 0.035 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.09 2.06
GAIA source ID 4121062386559621504 4121062390904545792
Bp mag. 16.557 19.913
G mag. 15.818 19.296
Rp mag. 14.963 18.048
Bp/Rp excess 1.293 1.740
Parallax (mas) 1.832 ± 0.054 -0.244 ± 0.528
PM RA (mas/yr) -1.644 ± 0.066 -3.202 ± 0.616
PM Dec (mas/yr) -12.359 ± 0.044 -5.820 ± 0.398
A.E.N. (mas) 0.0 ± 0.0 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.047 ± 0.004
i -- ± --
z -- ± --
Y -- ± --
J 13.834 ± 0.019
H 13.22 ± 0.028
K 13.098 ± 0.026
W1 12.986 ± 0.013
W2 13.054 ± 0.011
W3 12.382 ± --
W4 8.769 ± --
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.