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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 229802842 (SMSS J185710.80-301940.2)

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Data releaseDR4
RA (deg)284.2950
Dec (deg)-30.3279
Galactic lon. (deg)5.9384
Galactic lat. (deg)-14.4475
E(B-V) (SFD98) (mag)0.147
E(B-V) (GNILC) (mag)0.134 ± 0.006
Nearest DR4 source 229802841 (11.3 arcs away)
2nd-nearest DR4 source 1269532011 (12.0 arcs away)
3rd-nearest DR4 source 229802843 (13.3 arcs away)
Times observed37
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. 18.312 ± 0.067 18.082 ± 0.055 17.972 ± 0.024 17.713 ± 0.022 17.410 ± 0.013 17.387 ± 0.017
Petrosian mag. 18.480 ± 0.188 18.231 ± 0.156 18.075 ± 0.033 17.775 ± 0.018 17.497 ± 0.019 17.501 ± 0.04

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)
u 20140804103655 17.999 ± 0.118 0,0 40 1
u 20140828094028 18.307 ± 0.069 0,0 100 1
u 20140828094830 18.519 ± 0.085 0,0 100 1
u 20140828095631 18.286 ± 0.075 0,0 100 1
v 20140828094229 18.274 ± 0.061 0,0 100 1
v 20140828095030 18.118 ± 0.054 0,0 100 1
v 20140828095831 18.051 ± 0.056 0,0 100 1
v 20200629130537 17.961 ± 0.062 0,0 100 1
g 20140804103836 17.880 ± 0.094 0,0 5 2
g 20140828094429 18.001 ± 0.029 0,0 100 1
g 20140831091248 18.005 ± 0.028 0,0 100 1
g 20141006094739 18.058 ± 0.046 0,0 100 3
g 20170408173241 17.889 ± 0.100 0,0 5 2
g 20190528154047 18.035 ± 0.096 512,0 5 2
g 20190829093256 17.900 ± 0.028 0,0 100 2
r 20140708112130 17.907 ± 0.131 512,0 5 2
r 20140804103907 17.826 ± 0.104 0,0 5 2
r 20140828094629 17.756 ± 0.031 0,0 100 1
r 20140831091449 17.725 ± 0.029 0,0 100 1
r 20141006094940 17.757 ± 0.042 0,0 100 3
r 20170408173306 17.664 ± 0.100 0,0 5 2
r 20170825115621 17.669 ± 0.032 0,0 100 1
r 20190528154113 17.768 ± 0.088 0,0 5 2
r 20190829093456 17.637 ± 0.028 0,0 100 2
i 20140708112202 17.691 ± 0.115 0,0 10 2
i 20140804103933 17.396 ± 0.080 0,0 10 2
i 20140828095230 17.461 ± 0.035 0,0 100 1
i 20141006102359 17.500 ± 0.054 1024,0 100 2
i 20170314185652 17.360 ± 0.045 0,0 100 2
i 20170408173332 17.367 ± 0.081 0,0 10 2
i 20180323190254 17.439 ± 0.034 0,0 100 1
i 20190528154139 17.418 ± 0.081 0,0 10 2
i 20190623121941 17.356 ± 0.035 0,0 100 2
i 20190806110632 17.416 ± 0.029 0,0 100 2
z 20140708112232 17.563 ± 0.120 512,0 20 2
z 20140804104003 17.441 ± 0.103 0,0 20 2
z 20140828095431 17.349 ± 0.049 0,0 100 2
z 20141006095341 17.390 ± 0.063 0,0 100 2
z 20141006102600 17.490 ± 0.086 0,0 100 2
z 20170314185852 17.371 ± 0.054 0,0 100 2
z 20170408173404 17.581 ± 0.123 512,0 20 2
z 20180323190454 17.404 ± 0.048 0,0 100 1
z 20190528154208 17.389 ± 0.113 0,0 20 2
z 20190806110832 17.443 ± 0.046 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.12 3.03
GAIA source ID 6760443347570281856 6760443351890286208
Bp mag. 17.898 20.960
G mag. 17.606 20.626
Rp mag. 17.096 20.154
Bp/Rp excess 1.228 1.183
Parallax (mas) -0.100 ± 0.103 0.015 ± 0.861
PM RA (mas/yr) 0.043 ± 0.113 0.228 ± 1.549
PM Dec (mas/yr) -0.164 ± 0.098 -1.364 ± 1.593
A.E.N. (mas) 0.0 ± 0.0 0.938 ± 0.208

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u 18.312 ± 0.011
g 18.090 ± 0.001
r 17.782 ± 0.001
i 17.477 ± 0.002
z 17.448 ± 0.004
Y -- ± --
J 16.329 ± 0.015
H -- ± --
K 15.449 ± 0.024
W1 14.514 ± 0.017
W2 13.343 ± 0.013
W3 10.229 ± 0.087
W4 7.59 ± 0.18
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.