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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185151974 (SMSS J172718.03-201939.8)

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Data releaseDR4
RA (deg)261.8250
Dec (deg)-20.3278
Galactic lon. (deg)5.0713
Galactic lat. (deg)8.1140
E(B-V) (SFD98) (mag)0.818
E(B-V) (GNILC) (mag)0.581 ± 0.030
Nearest DR4 source 185151975 (6.1 arcs away)
2nd-nearest DR4 source 185151941 (6.2 arcs away)
3rd-nearest DR4 source 185151946 (6.9 arcs away)
Times observed11
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 19.758 ± 0.143 18.858 ± 0.081 18.215 ± 0.067 17.852 ± 0.074
Petrosian mag. — — 19.985 ± 0.185 18.949 ± 0.178 18.111 ± 0.075 17.633 ± 0.069

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 20190506165109 19.740 ± 0.072 3,0 100 2
r 20190505165926 18.979 ± 0.076 1041,0 100 2
r 20190506165309 18.837 ± 0.062 3,0 100 2
r 20190507143327 18.836 ± 0.070 3,0 100 2
i 20140729111202 18.265 ± 0.159 0,0 10 2
i 20150901084153 18.121 ± 0.062 3,0 100 2
i 20150901084554 18.215 ± 0.070 3,0 100 2
i 20190505170526 18.161 ± 0.067 19,0 100 2
i 20190509140533 18.112 ± 0.074 3,0 100 2
z 20150901084353 17.875 ± 0.081 1,0 100 2
z 20150901084754 17.854 ± 0.086 1,0 100 2
z 20190505170726 17.933 ± 0.094 16,0 100 2
z 20190508164202 17.925 ± 0.100 0,0 100 2
z 20190509140733 17.897 ± 0.100 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.61 0.61
GAIA source ID 4121255458241814528 4121255453951038592
Bp mag. 19.793 --
G mag. 19.275 20.162
Rp mag. 18.016 --
Bp/Rp excess 1.792 --
Parallax (mas) 0.705 ± 0.624 -- ± --
PM RA (mas/yr) -4.060 ± 0.626 -- ± --
PM Dec (mas/yr) -4.561 ± 0.424 -- ± --
A.E.N. (mas) 1.676 ± 9.851 0.199 ± 0.017

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.732 ± 0.008
i -- ± --
z -- ± --
Y -- ± --
J 16.710 ± 0.020
H -- ± --
K 16.058 ± 0.043
W1 -- ± --
W2 -- ± --
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.