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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185224251 (SMSS J173004.78-201856.3)

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Data releaseDR4
RA (deg)262.5199
Dec (deg)-20.3157
Galactic lon. (deg)5.4379
Galactic lat. (deg)7.5729
E(B-V) (SFD98) (mag)1.102
E(B-V) (GNILC) (mag)1.215 ± 0.061
Nearest DR4 source 2275932763 (6.1 arcs away)
2nd-nearest DR4 source 185224241 (7.1 arcs away)
3rd-nearest DR4 source 185224242 (8.2 arcs away)
Times observed35
Total bad pixels2
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.935 ± 0.031 17.644 ± 0.025 16.551 ± 0.018 15.903 ± 0.015
Petrosian mag. — — 18.756 ± 0.026 17.383 ± 0.039 16.32 ± 0.033 15.786 ± 0.024

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 18.943 ± 0.030 0,0 100 2
g 20190506165109 18.967 ± 0.032 0,0 100 2
g 20190507143127 18.912 ± 0.040 0,0 100 2
g 20190822094124 18.981 ± 0.028 0,0 100 2
r 20140719114939 17.841 ± 0.109 0,0 5 2
r 20140722114203 17.874 ± 0.091 512,0 5 2
r 20140729111131 17.592 ± 0.068 0,0 5 2
r 20160420172325 17.668 ± 0.105 0,0 5 2
r 20190505165926 17.651 ± 0.034 0,0 100 2
r 20190506165309 17.609 ± 0.027 0,0 100 2
r 20190507143327 17.643 ± 0.042 0,0 100 2
r 20190822094324 17.671 ± 0.030 0,0 100 2
i 20140719115004 16.453 ± 0.045 0,0 10 2
i 20140722114229 16.549 ± 0.040 0,1 10 2
i 20140729111202 16.579 ± 0.042 0,0 10 2
i 20150901084153 16.526 ± 0.030 0,0 100 2
i 20150901084554 16.533 ± 0.031 0,0 100 2
i 20160420172350 16.518 ± 0.051 0,0 10 2
i 20180605125802 16.568 ± 0.068 0,0 10 2
i 20190505170526 16.500 ± 0.033 1,0 100 2
i 20190509140533 16.516 ± 0.052 0,0 100 2
i 20190720124743 16.553 ± 0.059 0,0 100 2
i 20200513190610 16.538 ± 0.034 0,0 100 2
i 20210411183047 16.595 ± 0.060 0,0 10 2
z 20140719115035 15.881 ± 0.043 0,0 20 2
z 20140722114259 15.910 ± 0.038 0,1 20 2
z 20140729111235 15.904 ± 0.037 0,0 20 2
z 20150901084353 15.909 ± 0.029 0,0 100 2
z 20150901084754 15.888 ± 0.031 0,0 100 2
z 20160420172420 15.871 ± 0.039 0,0 20 2
z 20180605125833 15.909 ± 0.051 0,0 20 2
z 20190505170726 15.858 ± 0.034 2,0 100 2
z 20190509140733 15.897 ± 0.053 0,0 100 2
z 20190720124943 15.894 ± 0.058 0,0 100 2
z 20200513190811 15.888 ± 0.04 0,0 100 2
z 20210411183118 15.948 ± 0.045 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.31 1.38
GAIA source ID 4121431478868635776 4121431483187692928
Bp mag. 18.717 --
G mag. 17.399 20.695
Rp mag. 16.202 --
Bp/Rp excess 1.483 --
Parallax (mas) 0.139 ± 0.107 -- ± --
PM RA (mas/yr) -2.695 ± 0.127 -- ± --
PM Dec (mas/yr) -3.366 ± 0.078 -- ± --
A.E.N. (mas) 0.103 ± 0.213 3.533 ± 0.565

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r -- ± --
i -- ± --
z -- ± --
Y -- ± --
J 14.248 ± 0.032
H 13.32 ± 0.034
K 13.041 ± 0.026
W1 12.743 ± 0.013
W2 12.938 ± 0.014
W3 12.296 ± --
W4 8.695 ± --
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.