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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185152166 (SMSS J172720.51-201955.5)

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Data releaseDR4
RA (deg)261.8355
Dec (deg)-20.3321
Galactic lon. (deg)5.0730
Galactic lat. (deg)8.1035
E(B-V) (SFD98) (mag)0.818
E(B-V) (GNILC) (mag)0.581 ± 0.030
Nearest DR4 source 185152167 (5.9 arcs away)
2nd-nearest DR4 source 185152168 (8.4 arcs away)
3rd-nearest DR4 source 185152157 (9.0 arcs away)
Times observed32
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.271 ± 0.021 17.570 ± 0.015 17.019 ± 0.012 16.715 ± 0.015
Petrosian mag. — — 18.101 ± 0.119 17.695 ± 0.034 17.112 ± 0.031 16.850 ± 0.025

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 20140722114132 18.691 ± 0.142 512,0 5 2
g 20140729111106 18.294 ± 0.101 0,0 5 2
g 20190506165109 18.290 ± 0.031 3,0 100 2
g 20190507143127 18.469 ± 0.045 0,0 100 2
g 20190822094124 18.439 ± 0.044 16,0 100 2
r 20140719114939 17.741 ± 0.097 0,0 5 2
r 20140722114203 17.606 ± 0.077 0,0 5 2
r 20140729111131 17.581 ± 0.074 0,0 5 2
r 20160420170109 17.631 ± 0.104 0,0 5 2
r 20190506165309 17.560 ± 0.034 3,0 100 2
r 20190507143327 17.564 ± 0.043 3,0 100 2
r 20190822094324 17.595 ± 0.045 3,0 100 2
r 20210407183558 17.549 ± 0.095 0,0 5 2
i 20140719115004 17.004 ± 0.063 0,0 10 2
i 20140722114229 16.994 ± 0.060 0,0 10 2
i 20140729111202 16.957 ± 0.057 0,0 10 2
i 20150901084153 17.029 ± 0.035 0,0 100 2
i 20150901084554 17.007 ± 0.038 3,0 100 2
i 20160420170134 17.023 ± 0.067 0,0 10 2
i 20180605124636 17.107 ± 0.080 0,0 10 2
i 20190508164002 17.066 ± 0.044 2,0 100 2
i 20200513190610 17.061 ± 0.041 0,0 100 2
i 20200524153441 16.988 ± 0.068 0,0 10 2
i 20210407183626 17.149 ± 0.081 0,0 10 2
z 20140719115035 16.778 ± 0.072 0,0 20 2
z 20140722114259 16.743 ± 0.058 0,0 20 2
z 20140729111235 16.699 ± 0.059 0,0 20 2
z 20150901084353 16.705 ± 0.038 0,0 100 2
z 20150901084754 16.716 ± 0.042 0,0 100 2
z 20160420170204 16.861 ± 0.080 0,0 20 2
z 20180605124707 16.783 ± 0.076 0,0 20 2
z 20190508164202 16.751 ± 0.045 0,0 100 2
z 20200513190811 16.843 ± 0.055 0,0 100 2
z 20210407183658 16.846 ± 0.087 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.07 2.77
GAIA source ID 4121255488293744896 4121255458241658240
Bp mag. 18.187 20.637
G mag. 17.634 19.950
Rp mag. 16.647 19.358
Bp/Rp excess 1.481 1.111
Parallax (mas) 0.786 ± 0.196 1.943 ± 0.758
PM RA (mas/yr) -0.629 ± 0.214 -0.862 ± 0.745
PM Dec (mas/yr) -8.458 ± 0.149 -2.523 ± 0.556
A.E.N. (mas) 0.607 ± 7.321 0.331 ± 0.097

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.625 ± 0.004
i -- ± --
z -- ± --
Y -- ± --
J 15.493 ± 0.007
H -- ± --
K 14.939 ± 0.016
W1 15.039 ± 0.024
W2 15.078 ± 0.045
W3 -- ± --
W4 -- ± --
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.