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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185231755 (SMSS J173004.13-200807.4)

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Data releaseDR4
RA (deg)262.5172
Dec (deg)-20.1354
Galactic lon. (deg)5.5897
Galactic lat. (deg)7.6723
E(B-V) (SFD98) (mag)1.235
E(B-V) (GNILC) (mag)1.265 ± 0.019
Nearest DR4 source 185231717 (5.6 arcs away)
2nd-nearest DR4 source 185231753 (12.1 arcs away)
3rd-nearest DR4 source 185231714 (12.8 arcs away)
Times observed32
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 19.366 ± 0.018 18.022 ± 0.014 16.750 ± 0.010 16.033 ± 0.011
Petrosian mag. — — 19.515 ± 0.048 18.107 ± 0.031 16.802 ± 0.023 16.11 ± 0.022

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 20190505165725 19.382 ± 0.041 0,0 100 2
g 20190506165109 19.403 ± 0.042 0,0 100 2
g 20190507143127 19.365 ± 0.052 0,0 100 2
g 20190822094124 19.385 ± 0.037 2,0 100 2
r 20140722114203 18.022 ± 0.101 0,0 5 2
r 20140729111131 17.821 ± 0.082 0,0 5 2
r 20160420172325 17.890 ± 0.129 0,0 5 2
r 20190505165926 18.008 ± 0.037 3,0 100 2
r 20190506165309 18.040 ± 0.031 3,0 100 2
r 20190507143327 18.006 ± 0.045 3,0 100 2
r 20190822094324 18.028 ± 0.032 3,0 100 2
i 20140719115004 16.780 ± 0.053 0,0 10 2
i 20140722114229 16.788 ± 0.046 0,0 10 2
i 20140729111202 16.706 ± 0.045 0,0 10 2
i 20150901084153 16.751 ± 0.031 3,0 100 2
i 20150901084554 16.742 ± 0.032 3,0 100 2
i 20160420172350 16.696 ± 0.058 0,0 10 2
i 20180605125802 16.691 ± 0.074 0,0 10 2
i 20190505170526 16.719 ± 0.034 3,0 100 2
i 20190509140533 16.757 ± 0.057 3,0 100 2
i 20190720124743 16.759 ± 0.059 3,0 100 2
i 20200513190610 16.721 ± 0.041 3,13 100 2
i 20210411183047 16.823 ± 0.070 0,0 10 2
z 20140719115035 16.061 ± 0.046 0,0 20 2
z 20140722114259 16.042 ± 0.040 0,0 20 2
z 20140729111235 16.051 ± 0.039 0,0 20 2
z 20150901084353 16.013 ± 0.030 3,0 100 2
z 20150901084754 16.019 ± 0.031 3,0 100 2
z 20160420172420 16.037 ± 0.043 1024,0 20 2
z 20180605125833 16.119 ± 0.059 0,0 20 2
z 20190505170726 16.04 ± 0.035 2,0 100 2
z 20190509140733 16.039 ± 0.059 3,0 100 2
z 20190720124943 16.055 ± 0.059 3,0 100 2
z 20200513190811 16.009 ± 0.042 3,13 100 2
z 20210411183118 16.077 ± 0.049 2,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.06 3.34
GAIA source ID 4121447151252237440 4121447151234316672
Bp mag. 19.033 21.898
G mag. 17.548 21.038
Rp mag. 16.343 20.108
Bp/Rp excess 1.462 1.320
Parallax (mas) 0.069 ± 0.101 -- ± --
PM RA (mas/yr) -0.664 ± 0.123 -- ± --
PM Dec (mas/yr) -1.575 ± 0.083 -- ± --
A.E.N. (mas) 0.0 ± 0.0 2.473 ± 0.256

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.957 ± 0.003
i -- ± --
z -- ± --
Y -- ± --
J 14.27 ± 0.035
H 13.34 ± 0.029
K 13.029 ± 0.029
W1 12.847 ± 0.015
W2 12.958 ± 0.013
W3 11.972 ± 0.404
W4 8.559 ± --
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.