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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821030 (SMSS J172714.87-205022.2)

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Data releaseDR4
RA (deg)261.8120
Dec (deg)-20.8395
Galactic lon. (deg)4.6311
Galactic lat. (deg)7.8456
E(B-V) (SFD98) (mag)0.940
E(B-V) (GNILC) (mag)0.861 ± 0.037
Nearest DR4 source 179821031 (4.8 arcs away)
2nd-nearest DR4 source 179821028 (7.9 arcs away)
3rd-nearest DR4 source 2268053103 (8.7 arcs away)
Times observed37
Total bad pixels5
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 15.880 ± 0.016 14.541 ± 0.019 13.373 ± 0.018 12.722 ± 0.017
Petrosian mag. — — 15.760 ± 0.022 14.481 ± 0.019 13.312 ± 0.008 12.660 ± 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)
g 20140719114908 15.939 ± 0.027 0,0 5 2
g 20140722114132 15.911 ± 0.034 0,0 5 2
g 20140729111106 15.901 ± 0.029 2,0 5 2
g 20160420170043 15.865 ± 0.027 0,1 5 2
g 20180605124544 15.931 ± 0.027 0,0 5 2
g 20190505165725 15.939 ± 0.020 0,0 100 2
g 20190506165109 15.938 ± 0.023 0,0 100 2
g 20190507143127 15.944 ± 0.021 0,0 100 2
g 20190822094124 15.985 ± 0.022 16,0 100 2
g 20200524153348 15.921 ± 0.038 0,0 5 3
r 20140719114939 14.621 ± 0.022 0,0 5 2
r 20140722114203 14.577 ± 0.026 0,0 5 2
r 20140729111131 14.535 ± 0.025 3,0 5 2
r 20160420170109 14.596 ± 0.025 0,3 5 2
r 20190505165926 14.602 ± 0.026 0,0 100 2
r 20190506165309 14.595 ± 0.025 0,0 100 2
r 20190507143327 14.591 ± 0.033 0,0 100 2
r 20190822094324 14.629 ± 0.027 16,0 100 2
r 20200524153415 14.619 ± 0.036 0,0 5 2
i 20140719115004 13.400 ± 0.024 0,0 10 2
i 20140722114229 13.403 ± 0.026 0,0 10 2
i 20140729111202 13.380 ± 0.026 0,1 10 2
i 20150901084153 13.419 ± 0.029 0,0 100 2
i 20150901084554 13.421 ± 0.027 0,0 100 2
i 20160420170134 13.410 ± 0.020 0,0 10 2
i 20180605124636 13.410 ± 0.03 0,0 10 2
i 20190419150817 13.637 ± 0.030 24,108 100 2
i 20190505170526 13.420 ± 0.028 0,0 100 2
i 20190508164002 13.413 ± 0.026 2,0 100 2
i 20190720124743 13.370 ± 0.056 0,0 100 2
i 20200524153441 13.428 ± 0.031 0,0 10 2
z 20140719115035 12.734 ± 0.024 0,0 20 2
z 20140722114259 12.741 ± 0.026 0,0 20 2
z 20140729111235 12.715 ± 0.027 0,0 20 2
z 20150901084353 12.756 ± 0.03 0,0 100 2
z 20150901084754 12.747 ± 0.027 0,0 100 2
z 20160420170204 12.762 ± 0.021 0,11 20 2
z 20180605124707 12.733 ± 0.029 0,0 20 2
z 20190419151018 12.675 ± 0.027 24,114 100 2
z 20190505170726 12.755 ± 0.028 0,0 100 2
z 20190508164202 12.745 ± 0.024 0,0 100 2
z 20190720124943 12.727 ± 0.055 0,0 100 2
z 20200513183957 12.787 ± 0.029 0,0 100 2
z 20200524153511 12.750 ± 0.030 0,0 20 3

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.42 3.29
GAIA source ID 4121011297994238592 4121011297960413696
Bp mag. 15.611 20.340
G mag. 14.178 20.319
Rp mag. 13.020 17.830
Bp/Rp excess 1.416 4.877
Parallax (mas) 0.109 ± 0.021 0.751 ± 0.693
PM RA (mas/yr) -3.268 ± 0.026 -8.026 ± 0.807
PM Dec (mas/yr) -3.759 ± 0.018 -7.787 ± 0.607
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 16.397 ± 0.003
r 14.518 ± 0.004
i 13.577 ± 0.002
z -- ± --
Y -- ± --
J 11.039 ± 0.023
H 10.043 ± 0.024
K 9.764 ± 0.023
W1 9.561 ± 0.013
W2 9.598 ± 0.009
W3 9.382 ± 0.038
W4 8.626 ± --
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.