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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179837527 (SMSS J172500.57-202159.7)

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Data releaseDR4
RA (deg)261.2524
Dec (deg)-20.3666
Galactic lon. (deg)4.7422
Galactic lat. (deg)8.5427
E(B-V) (SFD98) (mag)0.688
E(B-V) (GNILC) (mag)0.567 ± 0.028
Nearest DR4 source 179837522 (5.9 arcs away)
2nd-nearest DR4 source 179837521 (6.8 arcs away)
3rd-nearest DR4 source 179837520 (8.9 arcs away)
Times observed33
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.941 ± 0.015 17.217 ± 0.015 16.638 ± 0.010 16.342 ± 0.016
Petrosian mag. — — 18.150 ± 0.020 17.413 ± 0.026 16.839 ± 0.025 16.587 ± 0.033

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 18.037 ± 0.085 0,0 5 2
g 20140729111106 18.082 ± 0.086 512,0 5 2
g 20190505165725 17.936 ± 0.032 3,0 100 2
g 20190506165109 17.940 ± 0.027 3,0 100 2
g 20190507143127 17.953 ± 0.037 3,0 100 2
g 20190822094124 17.940 ± 0.031 3,0 100 2
r 20140719114939 17.373 ± 0.076 0,0 5 2
r 20140722114203 17.217 ± 0.06 0,0 5 2
r 20140729111131 17.358 ± 0.064 512,0 5 2
r 20160420170109 17.304 ± 0.079 0,0 5 2
r 20190505165926 17.226 ± 0.037 1027,0 100 2
r 20190506165309 17.208 ± 0.030 3,0 100 2
r 20190507143327 17.211 ± 0.038 3,0 100 2
r 20190822094324 17.217 ± 0.038 3,0 100 2
r 20210407183558 17.240 ± 0.073 0,0 5 2
i 20140719115004 16.619 ± 0.05 0,0 10 2
i 20140722114229 16.671 ± 0.049 0,0 10 2
i 20140729111202 16.747 ± 0.051 0,0 10 2
i 20150901084153 16.649 ± 0.034 3,0 100 2
i 20150901084554 16.623 ± 0.035 3,0 100 2
i 20160420170134 16.643 ± 0.053 0,0 10 2
i 20180605124636 16.772 ± 0.065 0,0 10 2
i 20180804082838 16.701 ± 0.034 1,0 100 2
i 20190505170526 16.654 ± 0.037 3,0 100 2
i 20190509140533 16.670 ± 0.039 3,0 100 2
i 20190720124743 16.657 ± 0.062 3,0 100 2
i 20200513170714 16.663 ± 0.037 1027,0 100 2
i 20200513190610 16.689 ± 0.031 3,0 100 2
i 20210407183626 16.641 ± 0.056 0,0 10 2
z 20140719115035 16.376 ± 0.053 0,0 20 2
z 20140722114259 16.357 ± 0.047 0,0 20 2
z 20140729111235 16.323 ± 0.045 1024,0 20 2
z 20150901084353 16.396 ± 0.037 1,0 100 2
z 20150901084754 16.374 ± 0.038 1025,0 100 2
z 20160420170204 16.334 ± 0.051 0,0 20 2
z 20180605124707 16.350 ± 0.056 0,0 20 2
z 20180804083039 16.431 ± 0.036 1025,0 100 2
z 20190505170726 16.342 ± 0.038 1,0 100 2
z 20190509140733 16.442 ± 0.047 1025,0 100 2
z 20190720124943 16.369 ± 0.061 1027,0 100 2
z 20200513170916 16.419 ± 0.037 1027,0 100 2
z 20200513190811 16.473 ± 0.042 3,0 100 2
z 20210407183658 16.410 ± 0.062 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.05 4.0
GAIA source ID 4121286794372575360 4121286863069705088
Bp mag. 17.840 21.136
G mag. 17.095 20.922
Rp mag. 16.266 20.184
Bp/Rp excess 1.268 1.427
Parallax (mas) 0.242 ± 0.076 -- ± --
PM RA (mas/yr) 2.654 ± 0.104 -- ± --
PM Dec (mas/yr) 2.452 ± 0.066 -- ± --
A.E.N. (mas) 0.0 ± 0.0 3.602 ± 1.076

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 18.158 ± 0.004
r 17.264 ± 0.002
i 16.781 ± 0.003
z 16.531 ± 0.003
Y -- ± --
J 15.060 ± 0.005
H -- ± --
K 14.493 ± 0.009
W1 14.555 ± 0.016
W2 14.826 ± 0.035
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.