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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179726778 (SMSS J172753.42-211232.1)

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Data releaseDR4
RA (deg)261.9726
Dec (deg)-21.2090
Galactic lon. (deg)4.4008
Galactic lat. (deg)7.5187
E(B-V) (SFD98) (mag)0.982
E(B-V) (GNILC) (mag)0.817 ± 0.043
Nearest DR4 source 179726775 (8.0 arcs away)
2nd-nearest DR4 source 179726776 (9.1 arcs away)
3rd-nearest DR4 source 179726777 (9.8 arcs away)
Times observed30
Total bad pixels2
Observing flags1

Magnitudes

Filter u v g r i z
PSF mag. — — 18.562 ± 0.041 17.727 ± 0.019 17.081 ± 0.013 16.736 ± 0.013
Petrosian mag. — — 18.843 ± 0.06 17.873 ± 0.029 17.261 ± 0.047 17.003 ± 0.035

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 20140722114521 18.668 ± 0.142 512,0 5 2
g 20140729111843 18.515 ± 0.114 8704,0 5 2
g 20140731105829 18.534 ± 0.117 8192,0 5 2
g 20190427174639 18.529 ± 0.036 0,0 100 3
g 20190429143720 18.594 ± 0.042 0,0 100 3
g 20190507143127 18.540 ± 0.037 0,0 100 2
g 20200224175610 18.608 ± 0.043 0,0 100 2
r 20140722114545 17.666 ± 0.078 0,0 5 2
r 20140729111915 18.034 ± 0.101 8704,0 5 2
r 20140731105859 17.832 ± 0.087 8192,0 5 2
r 20160420170109 17.656 ± 0.099 0,0 5 2
r 20160420172325 17.891 ± 0.118 0,0 5 2
r 20190413153513 17.741 ± 0.036 1,0 100 2
r 20190427174841 17.742 ± 0.039 3,0 100 3
r 20190429143921 17.736 ± 0.038 1,0 100 3
r 20190507143327 17.719 ± 0.039 1,0 100 2
r 20190725113734 17.728 ± 0.032 1,0 100 2
r 20210619110859 17.858 ± 0.055 0,0 100 3
i 20140719120507 17.249 ± 0.077 0,0 10 2
i 20140722114611 17.118 ± 0.062 0,0 10 2
i 20140729111940 17.130 ± 0.063 8192,0 10 2
i 20140731105925 17.180 ± 0.065 8192,0 10 2
i 20150819090035 17.109 ± 0.041 8195,0 100 2
i 20160420170134 17.184 ± 0.073 0,2 10 2
i 20160420172350 17.111 ± 0.069 0,0 10 2
i 20170728084257 17.076 ± 0.043 0,0 100 2
i 20180605124636 17.234 ± 0.083 0,0 10 2
i 20190419150817 17.099 ± 0.043 1024,0 100 2
i 20190508164002 17.105 ± 0.037 1,0 100 2
i 20190720131554 17.087 ± 0.046 1,0 100 2
i 20200229174421 17.051 ± 0.045 1,0 100 2
i 20200524153441 17.088 ± 0.075 0,0 10 2
i 20210407183626 17.089 ± 0.079 0,0 10 2
z 20140719120539 16.856 ± 0.073 0,0 20 2
z 20140722114641 16.797 ± 0.060 0,0 20 2
z 20140729112010 16.788 ± 0.058 8192,0 20 2
z 20140731105955 16.789 ± 0.066 8192,0 20 2
z 20150819090236 16.763 ± 0.045 8192,0 100 2
z 20160420170204 16.744 ± 0.062 0,0 20 2
z 20160420172420 16.743 ± 0.063 0,0 20 2
z 20180605124707 16.821 ± 0.074 0,0 20 2
z 20190419151018 16.731 ± 0.045 0,0 100 2
z 20190427175645 16.749 ± 0.047 0,0 100 2
z 20190508164202 16.725 ± 0.040 0,0 100 2
z 20190720131754 16.713 ± 0.046 1,0 100 2
z 20200513183957 16.808 ± 0.050 0,0 100 2
z 20210407183658 16.808 ± 0.085 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.24 2.71
GAIA source ID 4120858775093307520 4120858775062957056
Bp mag. 18.390 21.431
G mag. 17.542 20.560
Rp mag. 16.653 19.834
Bp/Rp excess 1.287 1.147
Parallax (mas) 0.517 ± 0.095 -3.150 ± 1.314
PM RA (mas/yr) -4.167 ± 0.129 -0.956 ± 1.782
PM Dec (mas/yr) -1.710 ± 0.086 -2.203 ± 1.255
A.E.N. (mas) 0.0 ± 0.0 2.906 ± 1.779

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 18.729 ± 0.006
r 17.772 ± 0.003
i 17.227 ± 0.007
z 16.932 ± 0.006
Y -- ± --
J 15.338 ± 0.007
H -- ± --
K 14.740 ± 0.012
W1 15.081 ± 0.074
W2 15.177 ± 0.083
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.